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16 days and 18:48:49
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Conform #3
Core
Not yet published
Expected 23 Feb 27Win a free print copy of this book!
16 days and 18:48:49
20 copies available
U.S. only
Reeling from major upheaval as her ties to the rebellion threaten to be revealed, Emeline must decide where her loyalties—and her heart—lie.
The game is simple: Who loves whom more. The winner lives and the loser dies.
Emeline wakes in the clouds to a terrible reality. The rebellion has fallen. Hal has been captured, her life tied to his in a twisted game of the Illum leader’s creation. And Emeline must serve the procreation contract with her Mate, Collin, the youngest member of the Illum. But in the clouds, you can only trust what you see, not what they say—and the fight is far from over.
Determined to set things right, Emeline begins to gather allies new and old, leading her to shocking discoveries about the true nature of the rebellion. Everyone above and beneath is carrying secrets, and the efforts to bring down the Illum run deeper than Emeline could have imagined. The truth will shake things to the very core.
The revolution is here . . . and it might cost her everything.
The game is simple: Who loves whom more. The winner lives and the loser dies.
Emeline wakes in the clouds to a terrible reality. The rebellion has fallen. Hal has been captured, her life tied to his in a twisted game of the Illum leader’s creation. And Emeline must serve the procreation contract with her Mate, Collin, the youngest member of the Illum. But in the clouds, you can only trust what you see, not what they say—and the fight is far from over.
Determined to set things right, Emeline begins to gather allies new and old, leading her to shocking discoveries about the true nature of the rebellion. Everyone above and beneath is carrying secrets, and the efforts to bring down the Illum run deeper than Emeline could have imagined. The truth will shake things to the very core.
The revolution is here . . . and it might cost her everything.
656 pages, Kindle Edition
Expected publication February 23, 2027
About the author
Ariel Sullivan
15 books2,585 followersAriel Sullivan is a NYT and USA Today bestselling author who lives in Connecticut with her husband and two sons, as well as their two French bulldogs. Growing up a military brat, Ariel moved every two years and was a perpetual new kid; she often observed from the outskirts, where a deep love of reading was born.
When she isn’t writing, Ariel loves to read everything from poetry to psychology, bake with her sons, listen to live music and travel.
When she isn’t writing, Ariel loves to read everything from poetry to psychology, bake with her sons, listen to live music and travel.
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Displaying 1 - 30 of 82 reviews
Review of advance copy received from Publisher
Throwing it back to the 2010s with a love triangle, angst, and dystopian romance.
Core is a direct sequel to Conform, follow Emeline, a defect giving the privileged (blergh) role of the Enforcer’s Mate. She is to be used as a vessel, merely an obedient object made for pleasing her Mate and providing offspring.
However, Emeline is somehow at the centre of a rebel movement and caught between two men - both men she shouldn’t catch feelings for.
This is angsty, slow burn and filled with reveals. I can pat myself on the back as I guessed the major twists before the 30% mark, but I appreciated seeing them play out, even if it took Emeline wayyyy too long to figure it out.
The commentary in this dystopian book is what gets me. It’s 1984 meets The Handmaid’s Tale, but with conflicting romance and a more modern (dare I say BookTok) take.
Do you know the most insidious form of control? When compliance feels like free will. We Illum are tasked with smoothing out any friction that arises.
Emeline is incredibly stubborn, but she is also a woman who is subject to the powers, pressures, and propaganda of the state.
I would recommend reading Beneath (the prequel) before this one, or at least before the next release as it will have more importance.
Bingeable, addictive, and scary (especially in the light of recent events in the USA).
Physical arc gifted by Tor.
Bookstagram
Tiktok
Core is a direct sequel to Conform, follow Emeline, a defect giving the privileged (blergh) role of the Enforcer’s Mate. She is to be used as a vessel, merely an obedient object made for pleasing her Mate and providing offspring.
However, Emeline is somehow at the centre of a rebel movement and caught between two men - both men she shouldn’t catch feelings for.
This is angsty, slow burn and filled with reveals. I can pat myself on the back as I guessed the major twists before the 30% mark, but I appreciated seeing them play out, even if it took Emeline wayyyy too long to figure it out.
The commentary in this dystopian book is what gets me. It’s 1984 meets The Handmaid’s Tale, but with conflicting romance and a more modern (dare I say BookTok) take.
Do you know the most insidious form of control? When compliance feels like free will. We Illum are tasked with smoothing out any friction that arises.
Emeline is incredibly stubborn, but she is also a woman who is subject to the powers, pressures, and propaganda of the state.
I would recommend reading Beneath (the prequel) before this one, or at least before the next release as it will have more importance.
Bingeable, addictive, and scary (especially in the light of recent events in the USA).
Physical arc gifted by Tor.
Bookstagram
Tiktok
Want to Read
March 23, 2026OMG! We have a cover! Beautiful:)
Review of advance copy received from Author
I received an advanced reader’s copy from Thousand Voices, some small spoilers ahead.
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WOW. What a second book, dare I say even better than the first if that’s even possible? So many twists, turns and reveals. I’m shook. A lot of Easter eggs from Beneath, so do read that first. This series is insane, and Ariel Sullivan is a mastermind. I loved the growth of Emeline throughout this book and she really found herself and her voice. So much action that kept me wanting more and more, I read it so quickly even though it’s almost 700 pages.
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SPOILERS
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Was not expecting Phillip to play the part he did, that caught me off guard. My two theories on Reaper were Collin or Helen, and I love the reveal of it, I was still surprised. Need to go back and read the epilogue scene from Conform now.
Loved the Starlings role & Alice being alive. I also appreciate that the book didn’t even as soon as they got to Haven, the extra few chapters & epilogues really made the story.
I’d like to add I’ve been a Collin girl from day one and I’m SO HAPPY Emeline chose him, I could cryyyyyy at all of Collin’s declarations. Wow wow wow I need the next book ASAP, the wait is going to kill me.
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WOW. What a second book, dare I say even better than the first if that’s even possible? So many twists, turns and reveals. I’m shook. A lot of Easter eggs from Beneath, so do read that first. This series is insane, and Ariel Sullivan is a mastermind. I loved the growth of Emeline throughout this book and she really found herself and her voice. So much action that kept me wanting more and more, I read it so quickly even though it’s almost 700 pages.
.
.
SPOILERS
.
.
Was not expecting Phillip to play the part he did, that caught me off guard. My two theories on Reaper were Collin or Helen, and I love the reveal of it, I was still surprised. Need to go back and read the epilogue scene from Conform now.
Loved the Starlings role & Alice being alive. I also appreciate that the book didn’t even as soon as they got to Haven, the extra few chapters & epilogues really made the story.
I’d like to add I’ve been a Collin girl from day one and I’m SO HAPPY Emeline chose him, I could cryyyyyy at all of Collin’s declarations. Wow wow wow I need the next book ASAP, the wait is going to kill me.
This entire review has been hidden because of spoilers.
October 17, 2026
I received an advance copy of this book from NetGalley and the publisher in exchange for an honest review.
Woooooooooo. I read Conform on a whim when it released and I devoured it. I absolutely LOVE dystopian works and this sequel did not disappoint.
While reading, there was so much intensity and so many twists that I constantly had to check my percentage complete for fear I was being set up for a devastating cliff hanger only to realize I wasn’t at the end. However, when the ending came it was still a cliffhanger but thankfully not super devastating. Although, I will still be waiting with bated breath for the next book in the series.
Overall this was an amazing read and while I pride myself on being able to predict most twists, there were a handful in here that I did not. One of the bigger twists I guessed back in book 1 but I am still pleased with how it was revealed in this story and to see how it develops over the next book. In addition, if you have not read the prequel book, it isn’t required reading but there are a few cool Easter eggs you will find in this and I do believe it enriches the plot and lore greatly.
If you enjoy dystopian books and have not yet picked up this series I absolutely am wondering what your problem is.
Woooooooooo. I read Conform on a whim when it released and I devoured it. I absolutely LOVE dystopian works and this sequel did not disappoint.
While reading, there was so much intensity and so many twists that I constantly had to check my percentage complete for fear I was being set up for a devastating cliff hanger only to realize I wasn’t at the end. However, when the ending came it was still a cliffhanger but thankfully not super devastating. Although, I will still be waiting with bated breath for the next book in the series.
Overall this was an amazing read and while I pride myself on being able to predict most twists, there were a handful in here that I did not. One of the bigger twists I guessed back in book 1 but I am still pleased with how it was revealed in this story and to see how it develops over the next book. In addition, if you have not read the prequel book, it isn’t required reading but there are a few cool Easter eggs you will find in this and I do believe it enriches the plot and lore greatly.
If you enjoy dystopian books and have not yet picked up this series I absolutely am wondering what your problem is.
October 22, 2026
AHHHHHHH HOLY EASTER EGGS!
I am unwell and spiraling and have goosebumps.
Full review to come! Thank you Ballantine and Thousand Voices Media for the free advanced copy!
I am unwell and spiraling and have goosebumps.
Full review to come! Thank you Ballantine and Thousand Voices Media for the free advanced copy!
October 21, 2026
“You were always going to be a goodbye.”
My main takeaway from this book is that everyone drinks insane amounts of tea and wether or not I am missing out as I rarely touch it 🫣
Some series suffer from second book syndrome while others blow it out of the water and set the bar so high, you think it can never be toppled again. This is the case for Core. I loved Conform but this, I could not put it down. Ariel Sullivans writing is so addictive it made a nearly 700 pages book feel like an epic saga. Every chapter kept me completely engaged, even if it was just building up to the next phase. There was so much action, so many new characters and reveals, my mind is still spinning. I haven’t been able to binge this as I usually would due to real life, but I’m actually glad the book came at the time it did because I got to savor it. It was so hard having to put it down because for me, it really was one of those insane page turners. All 656 of them.
I will start with stating how much I loved the romance part of the book. There was a push and pull that would usually frustrate me, but the way it was done did the opposite. I honestly could not get enough and I dread the wait time until the next book.
Emeline - I really like her. I tremendously enjoyed her character development and the way she navigated learning the truth about the world she lives in, leaving behind any programming and moving forward with actual purpose. I feel she’s not fully there yet and there’s more to come in the next book, but there’s realism to slowly adapting and evolving based on your surroundings.
The world and the cast of characters have heavily been expanded as well which is always my favorite part. I could sense some of the revelations, but that didn’t take away from the story, plus there were some I didn’t see coming. Just in all honesty my mind is still reeling and I will be sitting with all of this for a while, it truly was so much. So much happening, so much information, so many names. This book felt like eating a very decadent piece of chocolate cake.
Ariel Sullivan is an autobuy author for me. So underrated, this entire series with its multiple timelines, it truly has been a balm on my soul and its desire for dystopian fiction.
Thank you Netgalley and the publishers for the arc😭😭
My main takeaway from this book is that everyone drinks insane amounts of tea and wether or not I am missing out as I rarely touch it 🫣
Some series suffer from second book syndrome while others blow it out of the water and set the bar so high, you think it can never be toppled again. This is the case for Core. I loved Conform but this, I could not put it down. Ariel Sullivans writing is so addictive it made a nearly 700 pages book feel like an epic saga. Every chapter kept me completely engaged, even if it was just building up to the next phase. There was so much action, so many new characters and reveals, my mind is still spinning. I haven’t been able to binge this as I usually would due to real life, but I’m actually glad the book came at the time it did because I got to savor it. It was so hard having to put it down because for me, it really was one of those insane page turners. All 656 of them.
I will start with stating how much I loved the romance part of the book. There was a push and pull that would usually frustrate me, but the way it was done did the opposite. I honestly could not get enough and I dread the wait time until the next book.
Emeline - I really like her. I tremendously enjoyed her character development and the way she navigated learning the truth about the world she lives in, leaving behind any programming and moving forward with actual purpose. I feel she’s not fully there yet and there’s more to come in the next book, but there’s realism to slowly adapting and evolving based on your surroundings.
The world and the cast of characters have heavily been expanded as well which is always my favorite part. I could sense some of the revelations, but that didn’t take away from the story, plus there were some I didn’t see coming. Just in all honesty my mind is still reeling and I will be sitting with all of this for a while, it truly was so much. So much happening, so much information, so many names. This book felt like eating a very decadent piece of chocolate cake.
Ariel Sullivan is an autobuy author for me. So underrated, this entire series with its multiple timelines, it truly has been a balm on my soul and its desire for dystopian fiction.
Thank you Netgalley and the publishers for the arc😭😭
Review of advance copy received from NetGalley
Being approved for one of my auto-buy authors’ highly anticipated books means dropping everything to binge-read, and that’s exactly what I did!
Ariel Sullivan, you are a mastermind. The way you describe this world and its brokenness while holding up a mirror to show how these characters got to where they are, all while highlighting their strength, is absolutely incredible. I am in awe. I love so many of these characters, and I cannot wait to see how this series continues to build. Also, I need an immediate reread because there were SO many Easter eggs!
There were so many moments in this book when I had to set it down, take a deep breath, and then reread what I’d just read. There were fist pumps, shock, tears, smiles, and laughter. This book brought ALL the emotions.
I will say, I never switched sides. I know who I want for our FMC, and as we got to know both of them better, for me, it wasn’t even close. 👀
The side characters and the connections to Unit Seven and Beneath were masterful. I was already Team Gregory, but a few others from Em’s birth family are definitely winning me over!
The war has begun. The seeds have been planted. And I truly don’t know if I’ll ever have the words to express just how much I loved this book. It’s living rent-free in my mind, and I have a feeling it’ll be there for a LONG time.
Infinite stars. ⭐⭐⭐⭐⭐
Thank you to Ariel Sullivan, Ballantine, and NetGalley for the opportunity to read and review this book. All opinions expressed are entirely my own.
Ariel Sullivan, you are a mastermind. The way you describe this world and its brokenness while holding up a mirror to show how these characters got to where they are, all while highlighting their strength, is absolutely incredible. I am in awe. I love so many of these characters, and I cannot wait to see how this series continues to build. Also, I need an immediate reread because there were SO many Easter eggs!
There were so many moments in this book when I had to set it down, take a deep breath, and then reread what I’d just read. There were fist pumps, shock, tears, smiles, and laughter. This book brought ALL the emotions.
I will say, I never switched sides. I know who I want for our FMC, and as we got to know both of them better, for me, it wasn’t even close. 👀
The side characters and the connections to Unit Seven and Beneath were masterful. I was already Team Gregory, but a few others from Em’s birth family are definitely winning me over!
The war has begun. The seeds have been planted. And I truly don’t know if I’ll ever have the words to express just how much I loved this book. It’s living rent-free in my mind, and I have a feeling it’ll be there for a LONG time.
Infinite stars. ⭐⭐⭐⭐⭐
Thank you to Ariel Sullivan, Ballantine, and NetGalley for the opportunity to read and review this book. All opinions expressed are entirely my own.
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November 13, 2026Let's gooooo
October 20, 2026
Thank you to NetGalley, Random House, Ballantine x Thousand Voices, for granting me early access to this title. It made my week to be a part of the first early few.
There are few books I can say are a privilege to get to recommend to people and this series is one of them. I am so excited to see Ariel Sullivan soar. She is a mastermind and deserves the success this series is seeing. After reading BENEATH I thought, “how could I possibly jump back into the CONFORM timeline?” Because I became so attached to Unit 7. But now I can’t imagine waiting two more books to get back here.
This book was thrilling, emotional, gut-wrenching, and had the perfect amount of humor laced within a gorgeously crafted story. Ariel has a way of describing settings that makes you want to see it for yourself. I NEED someone to do an adaptation of this where we flash back and forward between all the timelines. I think this series would do well in a television series format like FOUNDATION on Apple TV+. It is lush with art, visuals, colors, and fashion. Filled to brim with Easter eggs from each book. I loved piecing together family ties to BENEATH but I am so emotionally unwell over certain things we learn about their fate. We are in for pain on that series I fear. Enough action to make you never want to put it down but also have to put it down because you need to remind yourself to breathe in different moments.
I can’t wait to be able to post my full review but I refuse to let any kind of spoiler linger on this review because I want everyone to experience the emotional throws of this book. I want everyone to have the absolute time of their life getting stuck in the chokehold that is Emeline’s story.
This book is about the power of women.
I will leave you with this, no spoiler take: I have never been so happy to be 1. Right about a character and 2. Happy things went the way they did. There was a moment where I texted a friend and said “I think I’m going to have a nervous breakdown if this is headed where I think it is.” It did but we’re okay (well, okay is putting it lightly. We’re unwell but in the best way.)
This is the series to read right now. Pick it up. You won’t regret it. Ariel that ending was diabolically incredible.
AHHHHHHHH I need these books faster!! (But also I get it, craft your masterpiece queen. This is just torture, that’s all.)
There are few books I can say are a privilege to get to recommend to people and this series is one of them. I am so excited to see Ariel Sullivan soar. She is a mastermind and deserves the success this series is seeing. After reading BENEATH I thought, “how could I possibly jump back into the CONFORM timeline?” Because I became so attached to Unit 7. But now I can’t imagine waiting two more books to get back here.
This book was thrilling, emotional, gut-wrenching, and had the perfect amount of humor laced within a gorgeously crafted story. Ariel has a way of describing settings that makes you want to see it for yourself. I NEED someone to do an adaptation of this where we flash back and forward between all the timelines. I think this series would do well in a television series format like FOUNDATION on Apple TV+. It is lush with art, visuals, colors, and fashion. Filled to brim with Easter eggs from each book. I loved piecing together family ties to BENEATH but I am so emotionally unwell over certain things we learn about their fate. We are in for pain on that series I fear. Enough action to make you never want to put it down but also have to put it down because you need to remind yourself to breathe in different moments.
I can’t wait to be able to post my full review but I refuse to let any kind of spoiler linger on this review because I want everyone to experience the emotional throws of this book. I want everyone to have the absolute time of their life getting stuck in the chokehold that is Emeline’s story.
This book is about the power of women.
I will leave you with this, no spoiler take: I have never been so happy to be 1. Right about a character and 2. Happy things went the way they did. There was a moment where I texted a friend and said “I think I’m going to have a nervous breakdown if this is headed where I think it is.” It did but we’re okay (well, okay is putting it lightly. We’re unwell but in the best way.)
This is the series to read right now. Pick it up. You won’t regret it. Ariel that ending was diabolically incredible.
AHHHHHHHH I need these books faster!! (But also I get it, craft your masterpiece queen. This is just torture, that’s all.)
Want to Read
January 18, 2026Ordered B&N
February 2027
February 2027
Review of advance copy received from NetGalley
Wow. Just like with Conform, I could not put this book down. While not required, I would recommend reading Beneath prior to Core. There are people/things from Beneath that are referenced in Core. Reading Beneath prior will allow you to pick up all the little details.
This review contains no major spoilers, but may mention minor/vague character or plot details. If you're sensitive to even minor spoilers, you may want to read this review after finishing the book.
I would say my favorite part of this book was getting to know more about Collin. He is one of my favorite kinds of characters, truly morally grey. I love that despite everything, he never lied to Emeline. Frederick was a new character that also was really cool. Similarly to Collin, he always seems to try and help Emeline out indirectly. Nora and Gregory break my heart each book. I love the little ways they show they love each other. I love the way Gregory cares for Nora’s children, calling them ‘ours’. Phillip is as interesting and evasive as always. I love that despite only being ‘vessels’, the women have a significant role in aiding the rebellion. I loved the way Emeline’s mother knew so much about her children and their hearts despite not being able to be a significant part of their lives. While we do get confirmation/denial about who the real reaper is, I love that anyone can take on the title. If you loved Conform, you will definitely love Core. I am very excited for the next book, and even the books in the connected series. I was very honored and excited to get an ARC, and my expectations for this book were met and exceeded. I think the messages and content of this book are very relevant to the current world we live in.
This review contains no major spoilers, but may mention minor/vague character or plot details. If you're sensitive to even minor spoilers, you may want to read this review after finishing the book.
I would say my favorite part of this book was getting to know more about Collin. He is one of my favorite kinds of characters, truly morally grey. I love that despite everything, he never lied to Emeline. Frederick was a new character that also was really cool. Similarly to Collin, he always seems to try and help Emeline out indirectly. Nora and Gregory break my heart each book. I love the little ways they show they love each other. I love the way Gregory cares for Nora’s children, calling them ‘ours’. Phillip is as interesting and evasive as always. I love that despite only being ‘vessels’, the women have a significant role in aiding the rebellion. I loved the way Emeline’s mother knew so much about her children and their hearts despite not being able to be a significant part of their lives. While we do get confirmation/denial about who the real reaper is, I love that anyone can take on the title. If you loved Conform, you will definitely love Core. I am very excited for the next book, and even the books in the connected series. I was very honored and excited to get an ARC, and my expectations for this book were met and exceeded. I think the messages and content of this book are very relevant to the current world we live in.
October 17, 2026
ate this up, no crumbs.
Just—everything I could have wanted in a sequel and more. It’s almost 700 pages and I still barreled through it and wanted more desperately by the end.
IN ARIEL WE TRUST!! girl’s got a plan, and while I saw some things coming here they still landed soooo well, and other twists for sure surprised me.
need more nowwwww
Just—everything I could have wanted in a sequel and more. It’s almost 700 pages and I still barreled through it and wanted more desperately by the end.
IN ARIEL WE TRUST!! girl’s got a plan, and while I saw some things coming here they still landed soooo well, and other twists for sure surprised me.
need more nowwwww
October 25, 2026
Thank you to NetGalley and the publisher for an advance copy of this book in exchange for an honest review.
Emeline, Collin and Hal are back, and the rebellion is underway. The Reaper has been captured and Emeline finds herself in a game of cat and mouse with the Illum, whilst the overall fight is far from over.
Emeline has clearly matured somewhat since the first book. No longer shy and naÏve, she has seen through the inconsistent ways of the ruling classes and knows she cannot trust what she hears going forward. While she fundamentally remained everything I loved about her in the first book, no longer is she a mindless vessel concerned with the ‘Greater Good’, her newfound awareness and fight for the rebellion shines through and is written with such passion and authenticity that I would believe the author had been to war herself if I did not know differently.
The plot twists were also fantastic and I didn’t see any of them coming. No spoilers from me here, however the way these were staggered across the story and how the ties from book 1 and 2 came together throughout the book was crafted beautifully, and kept the story engaging despite the long length.
Whilst this book is fictional, what I most enjoyed about it is the way it subtly gives way to endless questions about the lives we all live; how our gender, class, sexuality, education, power and privilege effect everything from our perceived worth to what choices we are permitted - and the lives we are able to live as a result.
Overall, I cannot rate this book highly enough, and will continue to recommend the other two in the series whilst awaiting the publication of this one in 2027. If you enjoy 2010’s style dystopian fiction that makes you take a trip down memory lane (pr perhaps back to District 12), then this one is for you.
Emeline, Collin and Hal are back, and the rebellion is underway. The Reaper has been captured and Emeline finds herself in a game of cat and mouse with the Illum, whilst the overall fight is far from over.
Emeline has clearly matured somewhat since the first book. No longer shy and naÏve, she has seen through the inconsistent ways of the ruling classes and knows she cannot trust what she hears going forward. While she fundamentally remained everything I loved about her in the first book, no longer is she a mindless vessel concerned with the ‘Greater Good’, her newfound awareness and fight for the rebellion shines through and is written with such passion and authenticity that I would believe the author had been to war herself if I did not know differently.
The plot twists were also fantastic and I didn’t see any of them coming. No spoilers from me here, however the way these were staggered across the story and how the ties from book 1 and 2 came together throughout the book was crafted beautifully, and kept the story engaging despite the long length.
Whilst this book is fictional, what I most enjoyed about it is the way it subtly gives way to endless questions about the lives we all live; how our gender, class, sexuality, education, power and privilege effect everything from our perceived worth to what choices we are permitted - and the lives we are able to live as a result.
Overall, I cannot rate this book highly enough, and will continue to recommend the other two in the series whilst awaiting the publication of this one in 2027. If you enjoy 2010’s style dystopian fiction that makes you take a trip down memory lane (pr perhaps back to District 12), then this one is for you.
October 17, 2026
✨ARC Review✨
As someone who thought "Conform" was mediocre, and "Beneath" was a little better, I didn't have incredibly high hopes for this book.
I think this book had some of the improvements I was hoping for with the series continuing. But we still had odd conversations where someone would say something, it wouldn't be addressed until a few lines of dialog later. Circling back in the conversations that felt very odd.
Collin was the winner and saving grace of this book. He carried it through blood, sweat, and tears. I really think he is a great MMC, and I loved the progression of his story. I feel like by the end of the book we did earn the moment between him and Emeline. It felt like a true slow burn with how much we built upon the relationship. I liked the time spent in conversations and moments between them.
Emeline kind of irks me if I am being honest. Semi-spoiler... by the end of this book she gets this title and notoriety, but it doesn't feel earned by her at all. She really hasn't done anything, she is always in the dark, everyone is always doing things around her, but she hasn't done anything herself, so when this title gets pushed onto her it doesn't feel earned at all. She didn't do anything to earn it in my opinion, just was there while she learned what other people did to progress the story and rebellion.
I think the side characters really stepped up this book as well. I really love Gregory and Nora and if they don't get happiness I will actually be angry with the amount of crap they have had to endure. I think this author hates them. I loved more Barrett, him and Bri are incredible. I am also so interested in more Maxwell, he seems like a really fun character that brings a lot of light. I also loved Fredrik and want more. And the small glimpse we got of Mavis, I already adore her. I also want Hal to get happiness too.
Overall, it was fine. I am interested enough to continue with the story, but I still think some more structure and trimming down of the over clarification and conversations going in circles could be improved upon. Also... make Emeline actually do something to earn this type of praise so that you admire her.
As someone who thought "Conform" was mediocre, and "Beneath" was a little better, I didn't have incredibly high hopes for this book.
I think this book had some of the improvements I was hoping for with the series continuing. But we still had odd conversations where someone would say something, it wouldn't be addressed until a few lines of dialog later. Circling back in the conversations that felt very odd.
Collin was the winner and saving grace of this book. He carried it through blood, sweat, and tears. I really think he is a great MMC, and I loved the progression of his story. I feel like by the end of the book we did earn the moment between him and Emeline. It felt like a true slow burn with how much we built upon the relationship. I liked the time spent in conversations and moments between them.
Emeline kind of irks me if I am being honest. Semi-spoiler... by the end of this book she gets this title and notoriety, but it doesn't feel earned by her at all. She really hasn't done anything, she is always in the dark, everyone is always doing things around her, but she hasn't done anything herself, so when this title gets pushed onto her it doesn't feel earned at all. She didn't do anything to earn it in my opinion, just was there while she learned what other people did to progress the story and rebellion.
I think the side characters really stepped up this book as well. I really love Gregory and Nora and if they don't get happiness I will actually be angry with the amount of crap they have had to endure. I think this author hates them. I loved more Barrett, him and Bri are incredible. I am also so interested in more Maxwell, he seems like a really fun character that brings a lot of light. I also loved Fredrik and want more. And the small glimpse we got of Mavis, I already adore her. I also want Hal to get happiness too.
Overall, it was fine. I am interested enough to continue with the story, but I still think some more structure and trimming down of the over clarification and conversations going in circles could be improved upon. Also... make Emeline actually do something to earn this type of praise so that you admire her.
This entire review has been hidden because of spoilers.
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October 29, 2026Ariel, girl. My heart can't take this.
Thank you to the publisher and NetGalley for an ARC of this one.
This series has a serious hold of me, and I'm loving it. I will admit, I loved Conform and now Core more than Beneath, but I'm excited to continue. And, now having read Core, reading these in publication order is a must.
Amazing. Incredible. No notes.
Thank you to the publisher and NetGalley for an ARC of this one.
This series has a serious hold of me, and I'm loving it. I will admit, I loved Conform and now Core more than Beneath, but I'm excited to continue. And, now having read Core, reading these in publication order is a must.
Amazing. Incredible. No notes.
Review of advance copy received from Publisher
•• “𝘈 𝘳𝘦𝘷𝘰𝘭𝘶𝘵𝘪𝘰𝘯 𝘪𝘴 𝘣𝘰𝘳𝘯 𝘸𝘪𝘵𝘩 𝘢 𝘴𝘪𝘯𝘨𝘭𝘦 𝘵𝘩𝘰𝘶𝘨𝘩𝘵, 𝘣𝘶𝘵 𝘪𝘵 𝘣𝘦𝘨𝘪𝘯𝘴 𝘸𝘪𝘵𝘩 𝘢 𝘤𝘩𝘰𝘪𝘤𝘦. 𝘔𝘢𝘬𝘦 𝘺𝘰𝘶𝘳𝘴”
Where to even begin with this masterpiece? The stakes, the character arcs, the reveals, the Easter eggs - they are simply perfection. In Conform, we were in the dark with Emeline. But in Core, the power shifts. Answers are given. And sides are chosen.
The concept that those who control the past also control the future is a key theme in dystopian stories, but Ariel Sullivan proves this point so spectacularly with the way she layers the past and present installments of the Conform world. Reading this series in publication order (Conform, Beneath, then Core) allows you to truly feel this lesson. The hardships and courage of the past are fresh in the reader’s mind while the evils at play are actively at work, and the effect is one I’ve never experienced in a series before.
But not only does this masterful weaving of timelines create such a high emotional impact, but it also sent me in a wild Easter egg hunt that has resulted in my most tabbed book ever. The ties to Beneath, the clues and hints hidden throughout, the theories that piled up - this book is a spiraling readers dream.
Core tested my views on every character, made me question everything, and left me ready to suit up and fight for the Reaper. Ariel Sullivan cemented herself as an auto buy author for me this year, and I’ll be busy combing through this series over and over until she graces us with the next book.
•• “𝘜𝘣𝘪 𝘝𝘪𝘵𝘢 𝘪𝘣𝘪 𝘴𝘱𝘦𝘴 - 𝘞𝘩𝘦𝘳𝘦 𝘵𝘩𝘦𝘳𝘦 𝘪𝘴 𝘭𝘪𝘧𝘦, 𝘵𝘩𝘦𝘳𝘦 𝘪𝘴 𝘩𝘰𝘱𝘦”
*In the spirit of keeping this completely spoiler free, I can’t comment on the romance until after publication - sorry not sorry to the group chat 😘
Where to even begin with this masterpiece? The stakes, the character arcs, the reveals, the Easter eggs - they are simply perfection. In Conform, we were in the dark with Emeline. But in Core, the power shifts. Answers are given. And sides are chosen.
The concept that those who control the past also control the future is a key theme in dystopian stories, but Ariel Sullivan proves this point so spectacularly with the way she layers the past and present installments of the Conform world. Reading this series in publication order (Conform, Beneath, then Core) allows you to truly feel this lesson. The hardships and courage of the past are fresh in the reader’s mind while the evils at play are actively at work, and the effect is one I’ve never experienced in a series before.
But not only does this masterful weaving of timelines create such a high emotional impact, but it also sent me in a wild Easter egg hunt that has resulted in my most tabbed book ever. The ties to Beneath, the clues and hints hidden throughout, the theories that piled up - this book is a spiraling readers dream.
Core tested my views on every character, made me question everything, and left me ready to suit up and fight for the Reaper. Ariel Sullivan cemented herself as an auto buy author for me this year, and I’ll be busy combing through this series over and over until she graces us with the next book.
•• “𝘜𝘣𝘪 𝘝𝘪𝘵𝘢 𝘪𝘣𝘪 𝘴𝘱𝘦𝘴 - 𝘞𝘩𝘦𝘳𝘦 𝘵𝘩𝘦𝘳𝘦 𝘪𝘴 𝘭𝘪𝘧𝘦, 𝘵𝘩𝘦𝘳𝘦 𝘪𝘴 𝘩𝘰𝘱𝘦”
*In the spirit of keeping this completely spoiler free, I can’t comment on the romance until after publication - sorry not sorry to the group chat 😘
Review of advance copy received from NetGalley
⭐️ 4.5/5
❤️ dystopian
🔥 love triangle
❤️ slow burn
🔥 oppression & class wars
❤️ hunger games / divergent vibes
🔥 hidden identities
❤️ betrayals & plot twists
🔥 rebellion
❤️ multi POV
🔥 unreliable narrator
❤️ forbidden love
🔥 he falls first
This had me hooked early on for sure. There was a lot of action and I was turning pages as fast as possible, trying to absorb new information. I was engrossed and infatuated and utterly consumed by the story and the characters and the hardships. Mostly.
Emeline drives me nuts sometimes. I’m not really sure where the justification for everyone praising her so much comes from. So much of her time was spent missing queues and lashing out at everyone that tried to help her. I would’ve loved to see a little bit—like 20% more—intelligence and cunning from her. She just wasn’t nearly as clever as everyone seems to give her credit for. That’s not to say she wasn’t clever, it’s just not overwhelming.
I am also STILL #TeamCollin till I die. Hal can kick rocks for all I’m concerned. He’s selfish and a liar. Collin at least didn’t let Emeline make important decisions about him when she didn’t have all the information. Can’t say the same abt Hal!!!
PSA: I did not read Beneath before reading this and feel like I haven’t missed out on any connections or anything.
Thank you so much to Ballentine, Ariel Sullivan, and NetGalley for the eARC of this books! 😊
❤️ dystopian
🔥 love triangle
❤️ slow burn
🔥 oppression & class wars
❤️ hunger games / divergent vibes
🔥 hidden identities
❤️ betrayals & plot twists
🔥 rebellion
❤️ multi POV
🔥 unreliable narrator
❤️ forbidden love
🔥 he falls first
This had me hooked early on for sure. There was a lot of action and I was turning pages as fast as possible, trying to absorb new information. I was engrossed and infatuated and utterly consumed by the story and the characters and the hardships. Mostly.
Emeline drives me nuts sometimes. I’m not really sure where the justification for everyone praising her so much comes from. So much of her time was spent missing queues and lashing out at everyone that tried to help her. I would’ve loved to see a little bit—like 20% more—intelligence and cunning from her. She just wasn’t nearly as clever as everyone seems to give her credit for. That’s not to say she wasn’t clever, it’s just not overwhelming.
I am also STILL #TeamCollin till I die. Hal can kick rocks for all I’m concerned. He’s selfish and a liar. Collin at least didn’t let Emeline make important decisions about him when she didn’t have all the information. Can’t say the same abt Hal!!!
PSA: I did not read Beneath before reading this and feel like I haven’t missed out on any connections or anything.
Thank you so much to Ballentine, Ariel Sullivan, and NetGalley for the eARC of this books! 😊
October 23, 2026
Holy Moly HONORED to have read this early. Thank you to NetGalley and the publisher for the opportunity to read this ARC.
“You were always going to be a goodbye”
“You said you needed something to defend yourself with.” He stepped away from me, sheathing the knife. He clipped it to his belt. “Here I am.” - swoon.
I COULDN’T PUT THIS BOOK DOWN. I am so invested. Fast paced. Constantly trying to figure out what’s going to happen. Little dark and gritty. The TENSION!!!
I genuinely don’t know what Ariel Sullivan laces her books with, but I need more of it. The love triangle? The twists? The way you think you know what’s coming, and maybe you do, but then the way it all comes to light still manages to surprise you? SO well done.
There is something SO unsettling about dystopian books that feel just a little too close to reality. My 2010s divergent dreams but better. The angst, the tension, the genuinely scary parallels to our world… I was hooked.
This is the kind of story that makes you say “just one more chapter” over and over. I absolutely loved this story.. I love a certain male character sooooo much …I need answers, I need more, and I need the next book immediately! ❤️
“You were always going to be a goodbye”
“You said you needed something to defend yourself with.” He stepped away from me, sheathing the knife. He clipped it to his belt. “Here I am.” - swoon.
I COULDN’T PUT THIS BOOK DOWN. I am so invested. Fast paced. Constantly trying to figure out what’s going to happen. Little dark and gritty. The TENSION!!!
I genuinely don’t know what Ariel Sullivan laces her books with, but I need more of it. The love triangle? The twists? The way you think you know what’s coming, and maybe you do, but then the way it all comes to light still manages to surprise you? SO well done.
There is something SO unsettling about dystopian books that feel just a little too close to reality. My 2010s divergent dreams but better. The angst, the tension, the genuinely scary parallels to our world… I was hooked.
This is the kind of story that makes you say “just one more chapter” over and over. I absolutely loved this story.. I love a certain male character sooooo much …I need answers, I need more, and I need the next book immediately! ❤️
Review of advance copy received from NetGalley
I cried so much reading this book, and I loved every single second of it. Ariel Sullivan is an absolute mastermind.... the way she plotted this story is honestly jaw-dropping. Starting the journey in "Core" and then looping back to the prequel in "Beneath" adds an incredible layer of emotional significance, easily cementing this entire series as one of my all time favorite dystopian worlds. Her ingenuity and creativity are unmatched.
Driven by the perfectly done pacing, the writing is so intensely immersive that when the story reaches some of the most explosive peaks that I genuinely felt the adrenaline and my pulse was pounding. My Apple Watch asked me if I was exercising - that just shows Ariel Sullivan's PHENOMENAL talent to make her readers feel every single moment.
I never could have guessed in my wildest dreams where this story was going, and the next book ..... BUCKLE UP.
If you want to be completely consumed in a high-stakes fight against oppression (complete with a heavy layer of gripping secrecy and a slow-burn love triangle you will ACTUALLY root for) then this series is an absolute must-read. It was impossible to put down, I had a death grip on my kindle.
Thank you to Ariel Sullivan and I am so grateful for your brilliant plotting mind. Thank you also to Ballantine and NetGalley- I am forever thankful.
Driven by the perfectly done pacing, the writing is so intensely immersive that when the story reaches some of the most explosive peaks that I genuinely felt the adrenaline and my pulse was pounding. My Apple Watch asked me if I was exercising - that just shows Ariel Sullivan's PHENOMENAL talent to make her readers feel every single moment.
I never could have guessed in my wildest dreams where this story was going, and the next book ..... BUCKLE UP.
If you want to be completely consumed in a high-stakes fight against oppression (complete with a heavy layer of gripping secrecy and a slow-burn love triangle you will ACTUALLY root for) then this series is an absolute must-read. It was impossible to put down, I had a death grip on my kindle.
Thank you to Ariel Sullivan and I am so grateful for your brilliant plotting mind. Thank you also to Ballantine and NetGalley- I am forever thankful.
Review of advance copy received from NetGalley
⭐️⭐️⭐️⭐️⭐️ 5 star read!! Core begins where Conform left off and let me tell you that this sequel is one of the best I’ve read this year. Emeline deals with the constant betrayals and the subjugation and oppression of the women who are considered as only vessels to the elite and illum. Throughout this book we can feel the sadness and loneliness Emeline is dealing with. I love how she is determined not to give in to the ways of the illum by questioning everything and refusing to obey the rules. She goes through the motions of being a good mate but does not break. She’s determined to break the system and free those living in a cruel society. As far as the love triangle it is super difficult to choose Team Collin or Team Hal. In conform it was easier to choose who we thought would be the better man for Emeline. But the author makes both men so likeable in this book that they both could be good for her. They both have flaws and have made mistakes regarding Emeline but both are truly in love with her. She struggles with her feelings for both men but ultimately makes the rebellion her priority. She focuses on saving the lives of the Minors and Majors while pretending to be a cooperative mate. Some twists and surprises at the end set up for the next book. The pacing of the book is perfect and you will not want to put it down!!
Review of advance copy received from NetGalley
Core by Ariel Sullivan hit me where it hurt- multiple times. A constant burn in the chest and frog in the throat. And yet here I am, hoping that I'll be lucky enough to be selected for an ARC of the next book when it comes.
The story continues in the clouds where Emeline is still in a procreation contract. People she cares for are being used against her by the Illum. All the while she is fighting to realize her strength and worth as a human- a woman- as Emeline.
This book was masterfully written with details and clues interwoven for what's to come. Ariel does an amazing job at tying in the past and present while adding additional layers to the story. We got new characters, some I loved, some I absolutely hated and wished ill will apon 😂. And more page time for beloved characters from Conform. We got to see the deeper complexity of stories and the motives behind choices being made. The love triangle that won't quit. The forbidden love stories. And the incredible strength of a mother. It was a full and wild ride.
I also cried multiple times.
5 stars.
The story continues in the clouds where Emeline is still in a procreation contract. People she cares for are being used against her by the Illum. All the while she is fighting to realize her strength and worth as a human- a woman- as Emeline.
This book was masterfully written with details and clues interwoven for what's to come. Ariel does an amazing job at tying in the past and present while adding additional layers to the story. We got new characters, some I loved, some I absolutely hated and wished ill will apon 😂. And more page time for beloved characters from Conform. We got to see the deeper complexity of stories and the motives behind choices being made. The love triangle that won't quit. The forbidden love stories. And the incredible strength of a mother. It was a full and wild ride.
I also cried multiple times.
5 stars.
October 23, 2026
I received an advanced copy from the publisher and NetGalley in exchange for an honest review.
This book was 5 stars! ⭐️ So easy to read, and the depth of the story was amazing. The way she brought back all the subtle hints was so well done and appreciated because it’s easy to miss those little details and then suddenly be like, hold on, what just happened?!
The storyline is just… chef’s kiss. 🤌 The last 25% of the book had me reading as fast as I possibly could because I just needed to know what happened next!
The characters are SO good, and I genuinely can’t get enough of them. She could turn this into a ten-book series, giving every character their own POV, and I would read every single one!
Her writing is top-tier for me. There’s no overuse of words, and her descriptions are so effortless to understand and picture. Everything just flows so naturally.
I’m so appreciative of the opportunity to read this early, but I already need MORE! 🖤
This book was 5 stars! ⭐️ So easy to read, and the depth of the story was amazing. The way she brought back all the subtle hints was so well done and appreciated because it’s easy to miss those little details and then suddenly be like, hold on, what just happened?!
The storyline is just… chef’s kiss. 🤌 The last 25% of the book had me reading as fast as I possibly could because I just needed to know what happened next!
The characters are SO good, and I genuinely can’t get enough of them. She could turn this into a ten-book series, giving every character their own POV, and I would read every single one!
Her writing is top-tier for me. There’s no overuse of words, and her descriptions are so effortless to understand and picture. Everything just flows so naturally.
I’m so appreciative of the opportunity to read this early, but I already need MORE! 🖤
October 23, 2026
Advanced reader copy thanks to NetGalley.
I’ve been so excited for this sequel that I had to drop everything to pick this up the moment it became available. And just like the first book, I couldn’t put it down. Something about the writing is so addictive.
I won’t give any spoilers but I’ll say that I’m very pleased with where the story went as far as the MMC 😏 the way their story transformed was so satisfying and felt very earned by the end.
The world building has expanded a lot with this sequel, as well as the prequel, Beneath. By the end, I really felt I learned so much about the history and the ever evolving characters. In turn, all the new information has opened up a lot of opportunity for the remaining books in this series.
Now wishing I didn’t have to wait so long for the next book! 5/5
I’ve been so excited for this sequel that I had to drop everything to pick this up the moment it became available. And just like the first book, I couldn’t put it down. Something about the writing is so addictive.
I won’t give any spoilers but I’ll say that I’m very pleased with where the story went as far as the MMC 😏 the way their story transformed was so satisfying and felt very earned by the end.
The world building has expanded a lot with this sequel, as well as the prequel, Beneath. By the end, I really felt I learned so much about the history and the ever evolving characters. In turn, all the new information has opened up a lot of opportunity for the remaining books in this series.
Now wishing I didn’t have to wait so long for the next book! 5/5
Review of advance copy received from Netgalley
The sequel picks up with the rebellion in shambles and Emeline waking up high above the clouds, forced into a twisted survival game by the regime's leader. She has to play nice and pretend to serve her elite procreation contract with Collin while secretly building an underground web of allies to destroy the system from within. The psychological warfare between Emeline and the supreme leader is incredibly sharp, creating a deeply tense cat-and-mouse dynamic that completely outshines the original book's romance. The sequel completely steps up the stakes, taking the world into the clouds and delivering insane plot payoffs and toxic political mind games that will leave you stressed in the best way.
Review of advance copy received from NetGalley
i am SO happy to be back into the world of conform!!! this book had such a twist i wasn’t expecting and i’m really intrigued how ariel will continue it
conform holds the #1 place in my heart but this book was a great bridge between what happened in conform and what will happen in the third book, and i can’t wait for this trilogy to come all together
i read this with my book bestie kay and it was so great talking back and fourth about theories and what we thought might happen
thank you to netgalley and ballantine for sending me this!!
conform holds the #1 place in my heart but this book was a great bridge between what happened in conform and what will happen in the third book, and i can’t wait for this trilogy to come all together
i read this with my book bestie kay and it was so great talking back and fourth about theories and what we thought might happen
thank you to netgalley and ballantine for sending me this!!
Review of advance copy received from NetGalley
Let me start by saying I am HONORED to be chosen to read Core early. Thank you Ariel, NetGalley, & the publisher. I loved being back in this world, seeing Emeline’s growth, and of course the romance. The yearning was everything.
I had a very hard time putting this book down. There were scenes that had my heart pounding, eyes full of tears, and then gasping at a reveal. I am excited to go back through the book and look for Easter Eggs because they were definitely scattered about.
We got to see more of Emeline’s friendships with Nora, Violet, and Rose and some great messages about female strength and autonomy. I can’t wait for the next book in this series.
I had a very hard time putting this book down. There were scenes that had my heart pounding, eyes full of tears, and then gasping at a reveal. I am excited to go back through the book and look for Easter Eggs because they were definitely scattered about.
We got to see more of Emeline’s friendships with Nora, Violet, and Rose and some great messages about female strength and autonomy. I can’t wait for the next book in this series.
November 5, 2026
Jaw on the floor!
Thank you to NetGalley & the publisher for the ARC!! What a fabulous second book and follow up to Conform!
Ariel Sullivan really does a wonderful job at making you as the reader question what is right or wrong throughout the entire book.
This was just pure dystopian magicness.
Excited to see what happens next!
Thank you to NetGalley & the publisher for the ARC!! What a fabulous second book and follow up to Conform!
Ariel Sullivan really does a wonderful job at making you as the reader question what is right or wrong throughout the entire book.
This was just pure dystopian magicness.
Excited to see what happens next!
October 22, 2026
this is a GOD tier book series & every book just gets better.
I genuinely cannot stop thinking about it & I am so happy I got to read it prerelease.
never did I think I would be obsessed over a man named colin, but here we are!!
the plot was PLOTTING & the ending had me dying to read more
hal is so annoying & I genuinely hope he just vanishes in book three
I genuinely cannot stop thinking about it & I am so happy I got to read it prerelease.
never did I think I would be obsessed over a man named colin, but here we are!!
the plot was PLOTTING & the ending had me dying to read more
hal is so annoying & I genuinely hope he just vanishes in book three
Review of advance copy received from NetGalley
A nonstop page-turner! I completely tuned out the rest of the world while reading this one. I was on the edge of my seat from beginning to end, and there were moments when I had to stop and take a breath because I had no idea what was going to happen next. The anticipation was absolutely killing me. I went through every emotion with this book, and now I need the next one immediately. I highly recommend this series.
Thank you netgalley for this arc
Thank you netgalley for this arc
October 23, 2026
rtc
huge thank you to netgalley, ballantine books, & ariel sullivan for the arc of one of my most anticipated reads! 🤍
huge thank you to netgalley, ballantine books, & ariel sullivan for the arc of one of my most anticipated reads! 🤍
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