From the world of When Stars Align comes the prequel: A gripping story about a clone who must solve her original’s murder.
Carma Two remembers eighteen years of memories. Problem is, none of them are hers.
When biotech company Perry Enterprises brings her to life, she doesn’t want to believe she’s a genetic copy. After all, the similarities between her and her original don’t end at shared DNA—even her thoughts seem to echo Carma Lake’s. But if there’s one thing Carma Two doesn’t share with her original, it’s a pulse.
Someone murdered Carma Lake fifteen months ago and now, all evidence points to Ethan Perry, Carma’s secret boyfriend and son of Perry Enterprises’ founder. In seventy-two hours, Ethan will be tried for murder, and Carma Two is certain he’s innocent. With the real killer still at large and the clock ticking, Carma Two struggles with her desire to save the boy she loves in her memories and the threat of deactivation once he walks free.
All she knows is she can’t run from the past…or hide from the blankness of her future.
When Worlds Collide is the first book in The Celestial Code Series and can be read as a standalone or before When Stars Align.
Gracie S. Reynolds has always enjoyed writing books with elements of science fiction and fantasy, preferably stories where love and intelligence reign. Techie by day and writer by night, she is also fond of spending time with her husband, daughter, and small pack of dogs.
If you’d like to follow Gracie’s latest news, be sure to visit Instagram at @graciesreynoldsauthor or sign up to receive her newsletter at https://graciesreynolds.com/mailing-list.
I received an advanced review copy of this book in exchange for an honest review.
This was my first time reading a book about clones so I wasn't sure where to place my expectations. That being said, I thoroughly enjoyed this read and will be on the lookout for the sequel. I highly recommend this to people who love either sci-fi or mystery [or, even better, both]. I admittedly requested for it because I liked the cover 🫣 and it was worth it.
Thank you to Gracie Reynolds and BookSirens for the ARC.
I received an ARC copy of this story. First I wish there were more Sci Fi or fantasy murder mysteries out there. I love the suspense of a murder mystery coupled with a fantasy world. This story follows Ethan and Carma, and eventually Carma’s clone as she tries to solve her own murder that Ethan is being blamed for. It is fast paced and keeps your attention. There is a lot of back story between Carma and Ethan’s family to unpack during this book which adds a nice layer of suspense to the main plot.
Hi! I'm so sorry it took me so long to finish reading this amazing book, but I'm so glad I got the chance to read it. Thank you, Gracie S. Reynolds. With that said, let's start the review. -- So, it's the first time I read an ARC with the genre of mystery and sci-fi, and I'm amazed because I loved it. I thought it was going to be complicated to read or that the flow of the story was going to be choppy or harder to keep track of, but it’s written very well. The memories and every clue left while reading the chapters, allows the readers to feel connected to each change between them. MCs and the evolution of the plot. --- Also, the mix between the classical tragic love story, like Romeo and Juliet, and the plotline of Murder for Beginners was great and kept my interest (my ADHD) very piqued. -- I've enjoyed the small switches in the story's plot, like between the backstory and the main timeline; it makes the reader feel like a detective trying to join the dots between small details and main world-building, very Agatha Christie-like.
When the narrative goes to Carma's memories, it feels like when you're reading it, you're the outsider to the memory, not someone reliving it, which enhances the "situation" of Carma's character. -- About Ethan and Noah, I didn’t expect their development within the plot, though it was great, very Sherlock Holmes. Ethan's a great character. Since the main storyline is about him and Carma, it's interesting that his part of the plotline doesn't seem vital at first, until you link the dots.
And the story's buildup was amazingly well done; by the time I got all caught up with the characters profiles and backstories, the murderer was revealed, leaving me, the reader, wondering why I didn't see it. I've enjoyed this mystery plot a lot. -- So, if you're an avid reader that enjoys Agatha Christie's type of mystery narrative or Shakespeare's take on forbidden love, with a mix of futuristic sci-fi style, this book is for you. -- Also, I received an advance review copy for free, and I am leaving this review voluntarily (and happily).
Thank you to Xpresso Book Tours and NetGalley for providing me with the eArc for this book!
RATING: ⭐⭐½
Sci-fi murder mystery? Right up my alley. An interesting premise that unfortunately fell a little flat for me. I am going to preface this review by noting that I have not read When the Stars Align, to which this book is a prequel.
I'll start with the things that I enjoyed about the book:
- The clones and the small snippets of the science behind them are extremely interesting. I would honestly read an entire book just about the process and the difference between the different "levels" of the clones.
- The Romeo and Juliet vibes of the romance seen through memories/flashbacks.
And now, sadly, for the things I did not like about the book:
- The FMC's name being Carma just… irked me. It's petty and I know it's petty, but it seemed too on the nose for someone trying to solve her own murder.
- The dialogue felt extremely awkward and choppy in a lot of places, and like there was too much of it / characters overexplained things, which wasn't necessary.
- Dialogue, again, with the adult characters (specifically Levine). The FBI agents' talk like teenagers which completely ruined my immersion. One line that stands out: "I won't name names but someone in this room hasn't quite absorbed all of the info." A lot of their lines were just not something I felt that a professional, adult FBI agent would say.
I look forward to seeing and reading what the author publishes in the future!
Thankyou to Booksirens and the author for the ARC.
This review is going to be fairly short because, honestly, this was just an incredibly solid and enjoyable mystery with sci-fi elements. It's one of those books where I'd say if the blurb sounds interesting, give it a read. You'll probably really like it.
Some specifics on what I liked, though. The mystery itself was very well done in my opinion, although I had a suspicion on who it was partway through, I definitely wasn't sure, and then towards the end changed my mind and thought it might be the person it ended up being more out of eliminating other possibilities. There's also another twist at the end that got me really good and I honestly should have figured out when I saw the clues laid out which felt great I personally believe plot twists in books should always feel like "How did I not figure this out sooner?" than "I couldn't have seen that coming" and this definitely falls in the former which is great. That's my long-winded way of saying the mystery was great and kept me engaged throughout.
The other thing I enjoyed was the exploration of identity through cloning and exploring Carma 2's complicated feelings about who she is, because she's not the same as Carma; there are differences, but she's too similar to Carma and has all her memories to really be her own person.
So yeah loved this book, definitely give it a read if it sounds interesting.
If you’re a fan of Romeo & Juliet, The Island (2005 movie starring Scarlette Johanssen), and Altered Carbon, you should definitely pick up When Worlds Collide. When Carma Lake graduates high school, she plans to leave her little town behind and run away with her boyfriend. Too bad someone wanted Carma dead instead. Now two rival families have to come together with Carma’s clone to solve her murder and prevent anyone else from dying.
This little book asks some big questions about identity, which was very surprising. I don’t know anything about this author, but it almost feels like she has a degree in philosophy or ethics. There are scenes where Carma Two is noticing the differences between her and her original, everything from the food she likes to her nervous habits. There are questions asked about what makes a family, and whether or not love can transcend lifetimes.
I have to be honest here - I don’t like YA, but this book grabbed me. I was pulled in to the point that I stayed up until 2AM reading one night, and found myself crying at the end. The story moves quickly enough to keep you turning the page, and the modern day Romeo & Juliet vibes introduced enough conflict to raise the stakes. At just over 300 pages, it was also the perfect length to tell the story it wanted to tell without dragging on too long. If the next book is like this one, I will definitely be picking it up.
When Worlds Collide is a compelling, emotionally charged sci-fi mystery that pulls you in fast and keeps you thinking long after the final page. The premise alone—an eighteen-year-old clone forced to investigate her original’s murder—is intriguing, but the story truly shines in how it explores identity, memory, and what it means to be alive.
Carma Two is a fascinating protagonist. Watching her wrestle with memories that aren’t hers, feelings that may not be real, and a future that could be erased at any moment gives the story real emotional weight. The ticking clock of Ethan’s impending trial adds urgency, while the biotech setting and ethical questions surrounding cloning are woven in smoothly without slowing the pace. The mystery keeps you guessing, and the stakes feel personal rather than abstract.
While a few elements may feel familiar to fans of sci-fi thrillers, the execution is strong and heartfelt. I have to say I shed a few tears in the last few chapters.
It works well as a standalone, but it also clearly enriches the world of When Stars Align for returning readers. If you enjoy thought-provoking science fiction with romance, mystery, and high emotional stakes, When Worlds Collide is absolutely worth picking up.
I received an advance review copy for free, and I am leaving this review voluntarily.
I want to start off by saying thank you to the author, Gracie S. Reynolds and the BookSirens team, for allowing me the opportunity to be a part of the ARC reading team!
This book was so refreshing. I’ve been drowning in fantasy so picking up a Mystery/Thriller with Sci-Fi notes, was a no-brainer.
I was caught off guard by the depth this book caries. We start off meeting Carma Lake and Ethan Perry. Two loves destined to be together, but unable do to a family feud between the two family names. All in a time where clones are becoming the new norm. Then, tragedy strikes and Carma is found murdered and Ethan is accused of taking the life of his beloved.
Enter the clones. Carma is resurrected as a clone and tasked with solving her own murder. Through rights and wrongs, perilous tasks, and many, many close calls, Carma seeks the truth surrounding her death. But right when you think you know who the murderer is, I assure you, no you don’t.
A brilliant take on murder/mystery and well integrated in with just the right touch of Sci-Fi. And enough twists and turns to make you keep wanting to read more!
Overall: 4/5 stars ⭐️
This entire review has been hidden because of spoilers.
"When Worlds Collide" launches The Celestial Code Series with a gripping, emotionally charged, and brilliantly conceived premise. Gracie S. Reynolds introduces us to Carma Two, a clone who awakens with eighteen years of someone else’s memories and the urgent mission to save the man accused of her original's murder. This is not just a mystery; it's a profound exploration of identity, asking what makes us "us" when our very consciousness is a borrowed blueprint.
The novel masterfully balances a propulsive, ticking-clock plot, Ethan Perry's trial looms in just 72 hours, with Carma Two's deeply personal crisis. Her struggle is palpable: she feels a love for Ethan that is both intimately hers and completely inherited, and her fight to prove his innocence is also a fight for her own right to exist beyond her programming. Reynolds builds a tense, corporate-sci-fi world in Perry Enterprises where the threat of deactivation is as real as any killer. This is a smart, fast-paced, and thought-provoking debut that will hook fans of clone narratives, corporate thrillers, and stories where the heart of the mystery lies within the protagonist's own mind.
If you are looking for a thriller with a romance, sub plot and a sci-fi kind of world this is definitely the book for you!
⏰ For Fans of: - sci-fi thriller - sci-fi fantasy - murder mystery - Romeo and Juliet vibes - Not Quite Dead Yet by Holly Jackson
📖 Synopsis She wakes up as her own clone and has to pretend to be her original to figure out which one of the people closest to her killed her.
✏️ Spoiler-Free Review Okay, well, this book made me cry.
I thought this was going to be a full-on scifi thriller, but I actually loved the romance subplot that made the book feel more rounded without being too mushy.
It remained a page turner throughout the whole book!
I honestly just really enjoyed it and am excited to go back and read the first book (this is a standalone prequel). I’ll also be keeping an eye out for the next book!
⭐️ 4.5 True Rating
🖤 Thank you to author Gracie S. Reynolds, Xpresso Book Tours, and NetGalley for the digital advanced reader copy. As always, my reviews are honest, my own, and voluntary!
Thank you so much for the advance copy! This review is my own facts and opinions.
This book was WILD. So many twists, so much world-building (this world was amazing) and just amazing book all around. It is a little confusing at the start, but you will get the handle of what's happening when the action is happening. This is also a pretty fast-paced book, where you don't have to wait a while for the action. I want to see more stories set in this universe as well, so I will definitely be on the look out for them! Carma 2 was such an interesting character. I don't think I have ever read a book about cloning, let alone from a clone's perspective. I loved the time constraint, it really added so much action to the book. Every character had so much depth and emotion to them, even the ones who you would think are side characters. This book kept me guessing who was the murderer the whole time. And the plot twist at the end? *chef's kiss* it was perfectly timed and just an amazing idea. Overall, this book is an amazing book. If you want a book with amazing and immersive world-building, plot twists everywhere, and characters that you feel for, When Worlds Collide is for you!
When Worlds Collide by Gracie S. Reynolds kicks off The Celestial Code Series and what a beginning of a story it is! It is a sci-fi thriller/ murder mystery with a romance subplot. ( I've never read this style before). This is a gripping story in which a clone must find her original self's killer.
After she wakes up as her own clone and has to pretend to be her original to figure out which one of the people closest to her killed her.
I thought this was going to be a full-on sci-fi thriller, but I actually loved the romance subplot which is no surprise as I am predominantly a romance reader at heart.
I did enjoy the build up and pacing of the book. I felt as if I was trying the solve the murder alongside the story. Which if we are being honest my first genre ever read and loved was thrillers.
Thank you to author Gracie S. Reynolds for providing me an advanced copy of this book.
A great story combining sci-fi with murder mystery components with a Romeo and Juliet style love story. When Worlds Collide is a well paced story with so many twists and turns as you progress to getting to the ultimate whodunnit! No spoilers here, but when the first twist came, and then more kept coming, I don't think I've read through a final few chapters of a book quicker! The cloning element to the story is so well dealt with and Carma's struggle with her identity of being herself, but not quite herself really adds to this already brilliant story. Carma and Ethan's relationship is one of star crossed lovers, families that hate each other and their relationship has to be hidden; it just makes you root harder for them! Get this book on your TBRs for Feb- you will not be disappointed!
Wow - this book surprised me in all the best ways. The story skips all the science bits and jumps to the mystery. Carma Two was pretty smart and had her head on straight. She was really put in to a crappy situation: be useful and save the guy her original self loved, while also signing her own death warrant. Actually, that's inaccurate because either way she's going to be deactivated. So, follow orders or try and make it on her own? All poor choices.
While I was able to guess a few minor things, the ending took me by surprise. I liked the healing that happened along the way, along with the growth of several characters.
I am very excited to read more from this author!
Thank you Xpresso Book Tours for providing this book for review consideration via NetGalley. All opinions are my own.
I loved this one! While we're following Carma Two for the sake of her solving her original's murder, the best part of this book is the emotional aspect of reconciling who you are if not your memories. I found myself really falling into the scenes based on the descriptions (and I want to go to a Decades in real life!).
It would have been nice to learn more about our side characters beyond what was necessary for the plot progression, but I did like learning about Carma/Carma Two and Ethan.
Verdict: 🌕🌕🌕🌕🌗
I'll be picking up the sequel to this, and I don't even have to wait since it actually came out before this one. If you like YA and mysteries or light sci-fi, check this series out!
Thanks to NetGalley and the publisher for sending me this book to review. All opinions are my own.
Have you ever wondered what if you died but cloning technology existed so you were brought back with almost all of your memories to solve your own murder? Read this book! This book has such a unique premise, with the FMC being murdered and then her clone is brought into existence solely to solve that murder. The clone’s perspective being the FMC but a bit different, and with the added element of being sort of trapped in this role under threat of death, is fascinating and brings up a lot of ethical questions about the cloning technology in the book. I loved the technology and I also love a good murder mystery and the twists in this one were quite enjoyable! The relationships between characters are well built and I found myself truly caring about what happened to each and every one of them.
I would highly recommend this book to anyone looking for a bit of a murder mystery with a hint of sci-fi technology. I would also recommend this to anyone looking for a quick satisfying read, since I ended up so engrossed in the story that I read this in about a day!
Thank you to NetGalley, Xpresso Book Tours, and Gracie S. Reynolds for the opportunity to read an eARC of this book!
This book concept was very different to what I normally read, however, as soon as I saw it was a mystery and the premise of the story I was drawn in. This book did not disappoint from the twists and turns to the moral dilemma of clones it kept me hooked throughout. I was at about 80% when I guessed one half of the twist and the main half I didn’t guess at all! Anexcellently written book loved it!
I received an advance review copy for free, and I am leaving this review voluntarily.