The Serpent's Throne

by Kathryn Ann Kingsley

I swore I’d kill Raziel Nostrom. Now he owns my heart…

After a shattering betrayal, Nadi and Raziel flee into the Wild—the endless labyrinth of caves that is home to the fae.

Nadi trained for years to infiltrate and kill a ruthless family of vampires. Now she faces an even deadlier challenge—returning to her own family with their most hated enemy by her side.

In a realm of flickering lights and terrifying monsters, the desire that binds her to Raziel only grows stronger. Enemies and allies wish to tear them apart, but she still craves his razor-sharp smile, his touch, his bite…

In the city above, Raziel’s siblings are building a new world, where vampires rule with no restraint and no mercy. Soon their power will be untouchable.

Nadi and Raziel only have each other. Two shattered and broken things, in a world that wants them dead. Two perfect assassins, sharpened to a killing edge and hungry for revenge.

Their love was forged in blood. And it will end in blood…

A thrilling and addictive dark vampire romance, the Bloodlines series is perfect for fans of Carissa Broadbent, Keri Lake, and Kaylie Smith.

Genres: Fantasy, Dark Romance, Paranormal, Vampires, Romantasy, Spicy, Paranormal Romance

298 pages, Kindle Edition

Published July 10, 2026

About the author

Kathryn has always been a storyteller. Years of scriptwriting for performances on stage and for tourism in Boston led her to writing romantically dark, fantastical tales, which was an obsession of hers that began once seeing The Phantom of the Opera at a young age.

When she isn’t penning new villainous leads, she works in video game development. There, she has been everything from Creative Director to Chief of Staff, Design Manager, Executive Producer, and Principal Writer for various companies in the industry.

She shares her antique home with three very fluffy animals and one very patient and loving husband.

Reviews

[Isabelle · Rating 5 out of 5]

“This was love, he realized. Not the pretty, sanitized version from songs and stories. This was love in its truest, most terrible form—the willingness to destroy yourself for someone else’s sake.”

The Serpent’s Throne not only kept up with the momentum of the previous books, but it somehow kicked everything into an even higher gear! The second I thought I knew how things were going to go, I was blindsided by more scheming! The betrayers were getting betrayed, and I swear every single person had at least two metaphorical (and sometimes literal) knives in their backs!

Nadi and Raziel have one of the most intense and complex love stories I’ve ever read, and I loved every second of it. Even after the enemies became lovers, they still had so much distrust and brutal history between them! They are both so morally grey (let’s be honest—almost black) that it makes for a delightfully dark dynamic. It’s angsty and delicious! The romance really keeps you on your toes in this series.

This was the perfect 5 star ending to a perfect 5 star series for me! I had the best time with all these books 🖤 If you’re into dark, urban fantasies with mafia vibes, I cannot recommend this series enough!


•••••••••
Pre Read:
Huge thank you to Second Sky for the arc! This has been a 5 star series for me so I am THRILLED to see how Raz and Nadi’s story wraps up 😍

[bookishy · Rating 4 out of 5]

The Serpent's Throne was such a good ending to the Bloodlines series. I love how deliciously dark Nadi and Raziel are. I love how deranged they both are and that they match each other's freak. I loved seeing them in the Wilds with all the fae. Raziel had such a tough time, and it was so interesting to see. (I also cried during one scene.)

They are so in love with each other — at least I think so. Honestly, this entire series had me completely hooked. It's the perfect dark romantasy series; you seriously need to read it. And the third book didn't disappoint either.

If you are looking for a perfect dark romantasy with morally grey (or more like dark) character, read the The Serpent's Bride series.

[Faeofashandpayne · Rating 4 out of 5]

The Serpent's Throne by Katherine Ann Kingsley

What. A. Finale.😱

I absolutely devoured The Serpent's Throne and couldn't put it down. Every chapter had me questioning whether Raziel was about to embrace complete chaos or show us the soft-for-her monster we've all fallen in love with.

I loved spending more time in the Wild and learning more about the fae politics. It expanded the world beautifully while constantly making me fear that Raziel might not survive what was coming.

The spice? As delicious as ever.

The final chapters were packed with twists I genuinely didn't see coming. Grandma really dropped some bombshells, and that's all I'm saying... but trust me, justice was served.

I'm so sad this series is over because I've loved every minute of this dark, addictive ride.

If you're looking for a dark romantasy with an obsessive morally grey MMC, fae, monsters, spice, dangerous romance, and a hero who absolutely should not be fixed, this series belongs on your TBR.

[Gaby | gabblesreads · Rating 4 out of 5]

I can’t believe this trilogy is over, what a ride!

I loved Nadi and Raziel so much 🤭 They are both so ruthless and determined, they make the ultimate duo. I love how well they complement each other and the banter/tension was everything!

We once again continued straight from where the last book ended, so we got straight back into the action. I genuinely had so much stress reading this, it always seemed like it was just the two of them against the world and the odds were so against them, I couldn’t see how the two of them would win 😅 I am very satisfied with the ending though, some things I really didn’t see coming, but I think the plot really went in such a good direction, the ending was perfect.

If you love vampires and fae, and a bit of mafia vibes, then you need to read this trilogy!

Thank you to Second Sky and the author for providing me with an eArc in exchange for an honest review 😊

[Bri Solomon · Rating 4 out of 5]

3.75 I love how each book picks up right where it left off. With how book 2 ended I was looking forward to this book. I liked watching these characters grow closer in each book and seeing how their story ended.

[Trisha · Rating 4 out of 5]

ARC Review!

What a conclusion!

Forget "I can fix him." Nadi is more of a "I'll make us both WORSE" type of girl, and I was HERE for it!

This was a fantastic conclusion to the trilogy--everything was appropriately wrapped up without feeling too perfect. We got the relationship development beyond the physical (who knew the Serpent could be VULNERABLE? GASP!), ...we got more of the physical relationship, a few near death experiences-- what more could you ask for?

This is DEFINITELY a bingable series--like, a "I read this in a weekend" type of read. It has everything that paranormal, dark romance, and mafia romance readers could possibly want. Except maybe another 2 books, because this was TOP TIER enemies to lovers. Because everyone knows the best enemies to lovers has them staying enemies LONG after the "lovers" part kicks in.

I had the BEST time reading this series and will definitely be reading more by Kingsley in the future!

[Tamara • tamaramayimreads · Rating 4 out of 5]

“𝒴𝑜𝓊 𝒶𝓃𝒹 𝐼 𝒶𝓇𝑒 𝓂𝑒𝒶𝓃𝓉 𝓉𝑜 𝒹𝓇𝑜𝓌𝓃 𝒾𝓃 𝒷𝓁𝑜𝑜𝒹 𝑜𝓇 𝓈𝓉𝒶𝓃𝒹 𝓉𝓇𝒾𝓊𝓂𝓅𝒽𝒶𝓃𝓉 𝒾𝓃 𝓉𝒽𝑒 𝒶𝓈𝒽𝑒𝓈 𝑜𝒻 𝓉𝒽𝒾𝓈 𝓌𝑜𝓇𝓁𝒹, 𝒩𝒶𝒹𝒾. 𝒜𝓃𝒹 𝓎𝑜𝓊 𝓀𝓃𝑜𝓌 𝒾𝓉. 𝒲𝑒 𝓌𝒾𝓁𝓁 𝓀𝒾𝓁𝓁 𝑒𝒶𝒸𝒽 𝑜𝓉𝒽𝑒𝓇 𝑜𝓇 𝒹𝒾𝑒 𝒶𝓉 𝑒𝒶𝒸𝒽 𝑜𝓉𝒽𝑒𝓇’𝓈 𝓈𝒾𝒹𝑒.”

I can’t believe The Serpent’s Throne is the final book in the Bloodlines trilogy. What an incredible adventure this series has been! 🙌

Just like book two, this one picks up right where the previous one left off. Nadi, our favourite shapeshifting fae assassin, is back in the Wild with her own kind, and this time, she has the vampire serpent Raziel by her side. From the very beginning, you know you’re in for a wild ride. 👏

The fight for power and revenge continues, but this time there’s also something else possibly at stake… A future. Together?? 👀

These two are truly a match made in hell, and I mean that in the best possible way. 😜 They’re both unhinged, brutal, and ruthless, yet vulnerable in their own twisted ways. I absolutely adore these two characters.

Like the first two books, The Serpent’s Throne kept me on my toes and gave me plenty of “oooh” and “aaah” moments. The plot was definitely plotting you can say! There were a few moments where the pacing felt a bit slow for me, but overall I was so invested in the story and the characters that I happily kept turning the pages.

I was soooo desperate to find out how everything would end, and now that it’s over, I’m honestly a little sad for it to be over. 😢 But I do have to say, that I’m incredibly satisfied with the ending and so happy for my favourite murder-y couple. 🔥

Thank you so much to Second Sky and NetGalley for providing me with an eARC in exchange for an honest review.

If you’re looking for a dark fantasy series filled with vampires, fae, morally grey characters, enemies to lovers, mafia vibes, and an addictive revenge driven plot, then you need to pick up this series immediately! 🩸

[Samantha Hardesty · Rating 5 out of 5]

“It’s impossible, it’s wrong, I’m a mad sadist and you’re a murderous fae, I killed your family … but I love you anyway. Completely. Desperately. However much I’m capable of, with this ruined soul of mine.” 🥹

An epic ending to a really great trilogy.

The Bloodlines trilogy has become a comfort series for me, and one I’m sure to re-read time & time again.

As with the previous two books, The Serpent’s Throne is fast-paced, morally black, and addictive, so naturally I ate it up. Each chapter brought so many twists I got whiplash, and the plot never failed to be exciting.

I didn’t think it was possible to love Raz more, yet here we are. Not really sure what that says about me, but let’s allow it 🤫. His love for Nadi in this final book brought out more character development for the pair, and added more depth than what we’ve previously seen. I’m not sure heartwarming love is the right word - perhaps depraved, and toxic to everyone around them? I was rooting for them so much; give me more of that!! I also really liked how there wasn’t a grand reveal that ‘secretly they are both soft and really lovely on the inside.’ It was refreshing to see they were both still bastards 🤣. Dark romance at its finest! 🖤

Aside from the romance, the big standout for me in this book was that we actually get to see more of the Wild and the fae. I found that super interesting, and it rounded the story perfectly.

If you want a dark romantasy trilogy that’s fast-paced, spicy, a good time read, and will keep you guessing what’s going to happen till the last page, get The Bloodlines on your TBR.

Thank you so much to Second Sky, Kathryn Ann Kingsley & NetGalley for the eARC 😘

[Charlotte · Rating 4 out of 5]

Thank you to NetGalley for an ARC of this book!

I absolutely paced it through book 1 & 2 and was desperate to read the conclusion. While I really enjoyed this book, it did take me longer to get into than the previous two parts.

It was great to see the conclusion for Raziel & Nadi, and seeing them set out on their final mission to get revenge on his family was great.

This series was overall really enjoyable, and they’re great quick reads that get you really invested in Raz & Nadi’s stories.

[Catrina Williamson · Rating 4 out of 5]

This was a good ending to Nadi and Raziel’s story. I absolutely love Nadi and Raziel’s relationship even though it’s twisted and toxic to say the least. You can’t help but root for them and hope their murderous schemes work out. I truly enjoyed this series so much and though I’m sad it ended, I thought it ended well.

Thank you for letting me ARC this series! I can’t wait to read what you write next!

[Nancy Weiler · Rating 3 out of 5]

This was a much needed ending to the trilogy, absolutely loved the aspect of discovering more of The Wild and the fae realm especially with Raziel. Unfortunately for me it lacked the depth and speed from the first two I was yearning for.

I was so shocked by a couple of the twists and had be quite literally sweating with fear and the development of the relationship had me swooning so much! I loved this softer side of Raziel away from his family.

Thank you so much Second Sky for the gifted copy, I truly loved this series so much!

[❁ lilyreadsromance ❁ · Rating 5 out of 5]

Ooof, this trilogy truly exceeds my expectation. I didn't expect the highs to be really good and the lows to be really depressing. Gosh, and this ill-fated/star-crossed lovers trope? Buried me with it.

I don't know how else to praise this book other than it's a really damn good dark urban fantasy romance. It puts me in a very good mood. There was a little weakness with the conclusion act, but as a completed series, it's a BIG five stars read for me!

Highly recommended from yours truly.

[Nadi | Tales and Talons · Rating 2 out of 5]

After the cliffhanger in The Serpent’s Sin, I was genuinely excited to see how this trilogy would wrap up. Unfortunately, this finale didn’t quite land for me the way I hoped it would.

There were definitely parts I enjoyed. The time we spend in the Wild was a real highlight. It gave strong Avatar vibes with the glowing vines, the ceremonial tree, and this immersive, almost otherworldly atmosphere that was really well done. The secret deals, betrayals, and double-crossing kept me on my toes, even if at times it became a little tricky to keep track of everyone’s loyalties toward the end.

My biggest issue was the ending though. After so much build-up across the series, everything wrapped up so quickly that I barely had time to process what was happening before it was over. I kept waiting for more explanation, more detail, more something, but instead I was left with a lot of unanswered questions and a slightly confused stare at the final pages. It just didn’t fully make sense to me. See spoiler section for more details.

I also felt like the second half started to repeat itself quite a bit. The same thoughts and information kept coming back, and by the end I was really noticing it. That’s a personal pet peeve of mine and it definitely affected my reading experience.

The frustrating part is that I actually really liked the ideas at the core of this story. I just don’t think the execution of the finale worked for me the way it needed to.

If you’re here for vibes over logic, this might still really work for you. There’s plenty of action, strong atmosphere, and a relationship that pushes through everything.

Thank you to Second Sky for providing me with an eARC through Netgalley. All opinions are my own.




⚠️ SPOILERS BELOW ⚠️



I warned you.


My biggest sticking point: you’re telling me he drained her completely, there was basically no blood left, and then five seconds later she’s up decapitating the most powerful being in existence? I tried, I really did, but that just didn’t make sense to me. I kept thinking about it and wishing we got even a small explanation, because my logic brain fully refused to let that one go.

[Fedythereader · Rating 5 out of 5]

Thank you from the bottom of my heart to the amazing author and the wonderful publisher, Second Sky, for allowing me this last time to read an ARC of this marvellous series on NetGalley!!

“We will kill each other or die at each other’s side”

“The fae assassin.
And the Serpent.
They would die.
Or they would rule the world.
Come what may”

“My bloody bride. My murderer. Whatever complicated, twisted, insane path having you in my life was going to lead down? I was going to follow it blindly … And I would do it without question”

Raziel and Nadi. Once again. For the last time. Together. Fighting for revenge. And for each other. Impossible. Forbidden. And yet, inevitable. I loved this last book in the bloodline series. I can’t believe it’s over. After all the trials and tribulations. After all the trauma and darkness. After everything both of them have been through. After all the love they have shared (in their own maybe cruel and unhinged way) … I can’t believe this is the last. But what a marvel it was !!! I loved every second of reading this book. So much so, that I try and take my sweet little time with it because I simply didn’t want it to be over too soon. But I couldn’t help but being devoured by it. The action, the fear, the political strategies to take revenge on those who had wronged them both. The spicy and the sweet moments between two broken souls making one whole !!! Their passion for one another was met with the intensity of their journey to power and vengeance. And Raziel … damn I fell even harder in love with him this time around !!! I might be in desperate need of a reread of the whole series !!! I can’t wait for more amazing stories by this same author !!!

“But I love you anyway. Completely. Desperately. However much I’m capable of, with this ruined soul of mine”

“There’s my Serpent Queen”

“Bound by blood. Bound by marriage. Bound by something that went deeper than either - the simple, terrifying, miraculous fact that they had chosen each other”

[Stina Bradley · Rating 5 out of 5]

Some series end and leave you satisfied. This one ended and left me absolutely wrecked in the best way possible.
The Serpent's Throne is the conclusion to the Bloodlines series and let me be clear, it delivered everything and then some. High expectations? Shattered. I went in ready and still was not prepared.
Nadi and Raziel. Together one last time. Fighting for revenge, fighting for power and somewhere in the middle of all that beautiful chaos, fighting for each other. These two are deliciously dark, completely unhinged and perfectly matched. They are morally grey at best and unapologetically monstrous at their core, and that is exactly why you cannot stop reading. They do not pretend to be good. They simply choose each other, again and again, in the most broken and breathtaking way possible.
Watching them grow across this series has been something special. By this final book they are more open, more vulnerable and more electric than ever. Their chemistry is scorching. Their love story is the kind that is impossible and forbidden and yet feels completely inevitable. I cried. I gasped. I fell even harder for Raziel than I thought possible and I did not think that was something I was capable of doing at this point.
The world building continues to expand beautifully here. Seeing more of the Wilds and the fae added such richness to an already fascinating world. The political scheming, the plot twists, the secrets layered throughout kept me completely locked in. I tried to slow down and savor it. The book did not let me.
This series is seriously underrated and if you have been sleeping on it, wake up. If you love dark romantasy with morally complex characters who make questionable choices and zero apologies, this is your series. Start from the beginning and clear your schedule because you will not be putting these books down.
What a marvel. What a ride. I already miss them

[Tiffany · Rating 5 out of 5]

Bloodlines #3 (now complete)

Thank you to Netgalley and Second Sky for an e-ARC of this book in exchange for an honest review!
-
Kathryn Ann Kingsley is a master at morally grey, sometimes morally black characters, and making you so invested in them and their growth. This whole trilogy was a ton of fun. They’re all short (300 or so pages per book), and they are quick with no downtime! Each book roles right into the next one. This book is the FINAL installment in the Bloodlines series.

Nadi and Raziel continue their alliance to try to bring down Raziel’s family. The Nostroms are clever and ruthless, and a lot of careful coordination is needed to make sure both Nadi and Raziel can leave the situation alive. Their feelings continue to grow for one another, and yet, they are both still a little unsure of the other - is the other person a friend, or are they waiting for their opportunity to betray the other? Honestly, the slowburn build of that trust was one of my favorite things about this book. The fact that we are in the final installment and Nadi nor Raziel are 100% sure about the other is delicious, but also realistic. While we are on book 3, the story has moved quickly and our main characters have not had a ton of time to develop their bond to one another. Their relationship is complex and not straightforward, making it easy to become invested.

This story took me on some interesting twists and turns that I did not see coming! Raziel and Nadi are well aware that they not make it out of this situation alive, but Kathryn Ann Kingsley really had me on my toes at multiple points in this book!

This whole series is a solid, fun read. It has a great blend of spice, complicated relationships, and a fast-moving plot. I had a blast with this entire series, and especially book 3!

[Aleksandra · Rating 5 out of 5]

Thank you so much Second Sky for sending me this ARC!

The Serpent’s Throne is the last book in a Dark Fantasy Romance series and I absolutely loved Nadi and Raziel’s story, this series is phenomenal!

This is such a perfect conclusion to Nadi and Raziel’s story that I’ve come to love so much. I had really high expectations and it was even better than I expected with, as always, many secrets, scheming, plot twists, and amazing scenes with our main characters along the way. This book starts right where the previous one left off on that cliffhanger and I was immediately sucked back into this wonderful story, the author created a truly fascinating world and we got to see even more of it here which I loved. Nadi and Raziel were as incredible as ever, they have grown and changed so much in the course of these books, but I loved how they are still morally grey, kind of selfish, make questionable choices and are unapologetic about it, they might both be monsters, but I loved how they accepted those parts of themselves and each other. They are finally embracing their feelings for one another and it was amazing to see, Nadi and Raziel have come such a long way from the beginning of their story and I loved seeing them together here. They were more open and vulnerable with each other and their chemistry and spicy scenes were scorching hot, I loved these two so much and already miss them, I hope we will get to see them again in the future.

The Serpent’s Throne is a perfect conclusion to an incredible dark romantasy series, I loved these books so much and recommend them to everyone. This series is seriously underrated and, trust me, you don’t want to miss it. I’m already excited for what the author writes next.

[Nawelle Feral Reader Books · Rating 5 out of 5]

⭐️ ⭐️ ⭐️ ⭐️ ✨
Thank you to NetGalley, Second Sky, the amazing Noelle Holten and Kathryn Ann Kingsley for the ARC in exchange for an honest review.

Well. Kathryn Ann Kingsley really said “what if two deeply traumatised murderers fell in love and tried to burn the world down together?” and honestly? I ate up every second of it.

The Serpent’s Throne was such a satisfying conclusion to the Bloodline trilogy. Dark, violent, obsessive, romantic, unhinged — this series has always thrived in the morally grey chaos and this final instalment leaned fully into it. Raziel and Nadi are genuinely one of the most toxic-but-perfect-for-each-other couples I’ve read in a long time. Every interaction between them feels dangerous, emotional, and completely consuming. I was on the edge of my seat for most of this book. I just never knew which way the characters were heading next.

Raziel especially absolutely wrecked me in this one. Watching the line between Raziel Nostrom and the Serpent blur completely while still seeing how deeply, desperately he loved Nadi? Obsessed. Their relationship somehow became softer while still remaining feral and blood-soaked.

Some of my favourite lines:
“Two killers, wanting nothing more than to set it all aside, but knowing they never could.”

“We’re impossible.” “So we’ll be impossible. Together.”

“This was love in its truest, most terrible form—the willingness to destroy yourself for someone else’s sake.”

I loved the political manipulation, the lore reveals, the brutality, and the way this series never tried to sanitise who these characters are. They are monsters. They know it. And somehow that made the emotional moments hit even harder.

The ONLY reason this wasn’t a full 5 stars for me is simply because I’m not ready to let Raziel and Nadi go 😭

The Serpent and his little murderer own a piece of my soul now.

[ChronicallyYou · Rating 4 out of 5]

Thank you Second Sky and NetGalley for the ARC!

This trilogy genuinely surprised me more than almost any vampire romance I’ve picked up. As someone who usually avoids both mafia romance and bloody stories, I never expected to become this attached to Nadi and Raziel. But somehow I became completely obsessed with this morally corrupt couple.

The Serpent’s Throne picks up immediately after the INSANE cliffhanger in book two, throwing Nadi and Raz into the Wild. While I assumed that the Wild would finally give Nadi full confidence, it actually left Nadi timid and disconnected to her roots. Granted, she had spent a majority of her life above-ground as an assassin. We are also introduced to a key character who is fae and an old enemy/potential lover of Nadi's.

The relationship between Nadi and Raz remains toxic and completely consuming in the best way. Raz continues to be this wonderfully brutal and unhinged MMC, while Nadi balances a thin line between ruthless and vulnerable. I loved seeing them finally choose each other fully. That said, this is also where my biggest issue with the book comes in. At times, it felt like the story got stuck in an emotional circle, if you will...there’s a lot of repeated declarations of love, longing, repeated "I’d kill for you, burn the world down...yadda yadda yadda" moments, and while I adored their devotion to each other, I occasionally wanted the plot to move forward.

Still, I flew through this book. The politics, MULTIPLE betrayals, shifting alliances, revenge, and Raz's family dynamics kept me fully invested. Nadi and Raz are monsters without a doubt, but together they somehow become something almost sweet.

I’ll absolutely be picking up more of Kathryn Ann Kingsley’s books after this.

[Kezia · Rating 3 out of 5]

⭐⭐⭐
🌶️🌶️

I was really excited to see how this trilogy would wrap up because I have genuinely enjoyed this series and loved Raziel and Nadi’s relationship from the beginning. Unfortunately, this one ended up being a bit of a miss for me.

For a large portion of the book, the story focuses on the fae realm and its characters. While I can appreciate that this was meant to expand the world, I personally struggled to stay invested in that storyline. It felt like the main plot was constantly being put on hold, and I found myself wanting to get back to Raziel, Nadi, and the revenge arc that had been building throughout the series.

Because of that, the pacing felt quite uneven to me. The first part of the book moved slowly, and then the final section had to fit in so much that it ended up feeling rushed. I really wanted more time spent on the confrontation with the Nostrom family and the fallout from everything that had happened in the previous books.

Spoiler warning

One of my biggest issues was the resolution of the main conflict. We spend so much time hearing about this incredibly powerful grandmother who has been orchestrating events behind the scenes, only for her defeat to feel surprisingly straightforward. After all the build-up, I was expecting a much bigger showdown, so the ending left me feeling a little underwhelmed.

That being said, I still enjoyed spending time with Raziel and Nadi. Their relationship remains the highlight of the series for me, and I liked seeing how far they had come since the first book. While this finale wasn’t quite what I had hoped for, I am still glad I picked up the series overall.

[Stormborn Bookshelf · Rating 5 out of 5]

5⭐️


I am simply in love with this series. Every single book in this trilogy kept me completely glued to the pages, and the Bloodlines delivers a beautiful and unforgettable conclusion.

Nadi and Raziel’s journey has been intense, emotional, and utterly addictive from the very beginning, and this final book raises the stakes even higher. The tension, the danger, the romance, and the constant push and pull between love and revenge had me hooked from start to finish. I loved watching their relationship deepen as they faced impossible odds together, and their chemistry remained as captivating as ever.

The world-building continues to shine, with the eerie beauty of the Wild, terrifying monsters, political intrigue, and ruthless vampires creating the perfect backdrop for this dark romance. The emotional depth of the story was what truly stood out to me, though. Both Nadi and Raziel are broken in their own ways, and seeing them fight for each other in a world determined to tear them apart was heartbreaking and beautiful. I love that the author has included the fae realm, and I wish we got to discover more of it!

I think this is a wonderful way to end the series. It gave me everything I wanted while still leaving me emotional. It’s incredibly bittersweet to have to let this series go after becoming so invested in these characters and their world.

If you love dark vampire romance, enemies-to-lovers, high-stakes action, and emotionally charged relationships, this trilogy is a must-read. I’ll definitely be thinking about Nadi and Raziel long after turning the final page.

[Nikki O'Brien · Rating 4 out of 5]

This was a solid conclusion to the Bloodlines trilogy, especially after that cliffhanger at the end of The Serpent's Sin. I was really happy to finally get some closure for Nadi and Raziel and see how their stories played out.

One thing this series absolutely nails is the atmosphere. It fully leans into the dark fantasy vibes with vampires, mafia politics, dangerous alliances, and morally gray characters. That dark, addictive world is what kept me hooked from the very beginning.

That being said, I can't help but feel a little underwhelmed by the ending. The first two books spent so much time building the tension and raising the stakes that I was expecting a bigger emotional payoff. While the story does wrap everything up, it didn't quite hit as hard as I wanted it to, and I finished the book wishing the finale had packed a little more punch.

And then there's Raziel. He will forever be a walking red flag, but he'll also always have a place in my heart. He's the definition of a morally gray love interest, the kind of character you know you shouldn't be rooting for, but somehow you do anyway. He was easily one of my favorite parts of the entire series.

Overall, I really enjoyed this trilogy. Even though the ending didn't completely live up to the incredible buildup of the first two books, it's still a satisfying conclusion to a dark, addictive series. If you love vampires, mafia intrigue, and morally gray characters, I'd definitely recommend giving this trilogy a try.
Thanks so much to NetGalley and Second Sky for the ARC of this book

[MaddMoxxie · Rating 5 out of 5]

Kathryn Ann Kingsley is in a league of her own when it comes to villain romance. Nobody writes a villain gets the girl story quite like she does, and The Serpent's Throne proves it.

There is no morally grey here - Raziel is pure black. He's a walking red flag with absolutely no interest in redemption, and I wouldn't want him any other way. Kingsley never tries to justify who he is. She simply gives him someone who sees every ugly, monstrous part of him and loves him anyway. His love is terrifying, obsessive, dangerous... and for Nadi, impossible to resist.

And Nadi? I love a stabby FMC, and Kingsley writes powerful women better than almost anyone. Cora from Harrow Faire will always have a special place in my heart, but Nadi comes so incredibly close. She's just as dangerous, shaped by the choices of others - especially Raziel's - but also by the choices she makes herself. She's the perfect morally grey match for the Serpent.

Together they're explosive, violent, obsessive, surprisingly tender, and easily one of my favourite dark romance couples. They don't fix each other. They don't make each other better. They simply see each other completely, and that's what makes them work.

I've loved this series from the start, but this finale still managed to exceed every expectation I had. It completely consumed my life, and now that it's over, I'm left with the biggest book hangover and the most bittersweet feeling.

Another masterpiece from Kathryn Ann Kingsley. 🖤

I received an advance reader copy from the author and am sharing my honest review.

[Lisa Villarreal · Rating 5 out of 5]

I jumped into this immediately after being invited to read it. Thank you so much for the e-arc second sky pub!

Utterly obsessed.

She did it again. The pages are sprinkled with MAGIC dust, probably dark and unhinged magic, but magic in every word that pulled me in and it did not let go. I was eating it up. I loved how much time we got to spend with Raziel and Nadi working together. Revenge plot was WORKING for this sequel in a big way to drive the story. Raziel is still unhinged, maybe even more so, while Nadi balances on morally grey. They're both broken characters that have dealt with a lot of trauma so I really loved touching on more vulnerable moments. The spice spiced. The banter was perfect, as always, between Nadi and Raz. And some banter I really loved... Which led to ultimate heartbreak. This was such a rollercoaster of emotions. It tore me apart. Even with a little heartbreak it had a lot more heart. I loved loved loved it. This whole series is one of my all time favorites.

Assassin FMC is always a win for me. And I loved Nadi the entire way through. Morally grey to black MMC. Banter. Revenge plot. Twists. Trauma. Heartbreak. Love and spice. Seriously just all of it worked to make one phenomenal story.

I also loved the worldbuilding and seeing the wilds. It is a well paced story that's written beautifully to go along with the clever plot. I am all the way obsessed with Nadi and Raziel.

[Elsa L · Rating 4 out of 5]

3.5

What an ending! But before talking about that…the start of this book picking up with that book 2 cliffhanger was the most satisfied I felt in this book. Mostly because I wanted to see Raziel’s shock of Nadi saving him from the bottom of the ocean. Their dynamic has always been true enemies, violent with banter but they always hat it out for each other. So getting to that part was so satisfying and fun. Of course, Raziel is not having it and he goes full serpent. If he was a villain before, he was now THE villain, and he will not stop to get revenge against his siblings.

The most entertaining part was Raziel and Nadi going to the wild and encountering the wild Fae for the first time. It was crushing to see Nadi go back home but her still feeling very displaced and how she doesn’t belong with her kind. Her pairing up with Raziel in their battles was very telling. But was glad to see both of them admit their feelings for each other. The Fae setup and schemes were very much well planned. Some of those twists, I didn’t see coming. But I was glad to see the outcome of all the betrayals.

Then, the final stand with the vampires and the siblings was intense. But very much overdue. I was happy to see more twists at the very end. And seeing Raziel’s comeback was something. I think my favorite part here was how Raziel and Nadi stopped doubting the other and went full battle mode together, no matter what. Solid ending to this trilogy

[Mary Kate · Rating 3 out of 5]

One of the things Kathryn Kingsley does best is writing morally gray characters, and Nadi and Raziel remained the strongest part of this series. Watching their enemies-to-lovers relationship evolve from hatred and distrust into genuine partnership was still satisfying, and the emotional payoff between them was well earned.

Where this book lost me was in the pacing and the resolution. The Serpent’s Soul and The Serpent’s Sin balanced political intrigue, danger, romance, and shocking twists in a way that kept me completely invested. By comparison, the final installment felt slower, with much of the story focused on setting up the inevitable confrontation rather than delivering the same tension and momentum that made the earlier books so compelling.

The ending also felt a little too neat. After all the brutality, betrayals, and impossible choices throughout the series, the dismantling of House Nostrom and the hopeful future for vampires and fae wrapped up more cleanly than I expected. While I appreciated the message of breaking cycles of violence instead of simply replacing one tyrant with another, I wanted the final battle and its consequences to carry more emotional weight.

Even so, I don’t regret reading the trilogy. Kingsley created a dark, fascinating world, and Raziel remains one of her most compelling morally gray heroes. Although The Serpent’s Throne didn’t quite deliver the epic finale I was hoping for, the journey to get there was still worth taking.

[Keeley Ribchester · Rating 4 out of 5]

The Serpent’s Throne was such a satisfying conclusion to this trilogy and I was genuinely so excited to receive an ARC for this final instalment after loving the previous books.
Kathryn Ann Kingsley wrapped this series up beautifully, balancing the darkness, emotion, romance, and tension that made the trilogy so addictive in the first place. I especially loved getting more time in Nadi’s world after spending so much of the earlier books immersed in Raz’s perspective. Their relationship felt messy, complicated, and believable in the best way.
What stood out most for me was how the author never ignored the flaws between them or tried to romanticise the damage they had both caused. Instead, those struggles became part of what made their connection feel authentic and earned. Watching them confront their past while still fighting for each other made the emotional moments hit even harder.
The world building, the twists, the emotional tension, and the gothic atmosphere all kept me completely invested. This trilogy really understood what it wanted to be from start to finish, and it never felt dragged out or unnecessary. something that’s surprisingly rare in fantasy trilogies lately.
A strong and emotional finale to a really solid series that fantasy romance readers should absolutely pick up.📚✨

[Mikaela · Rating 4 out of 5]

I’ve reached the end of this series, and while I’m relieved I finished, it didn’t fully connect with me.

A lot of the story follows Raziel and Nadi’s time in the Wilds as they move through survival, captivity, and somewhat shifting alliances, all building toward confrontation with his family. The world-building really stood out for me, especially in those early Wilds sections.

That said, some moments pulled me out. The chapter 22 Lilivra scene, especially the short swords reveal, left me confused and felt like it wasn’t fully grounded or explained. Like where did the swords come from?

The vampire elements throughout the series gave strong Bram Stoker’s Dracula energy, especially the ability to turn into bats or mist, paired with that old-world brutality.

Raziel himself was hard to connect with. His love for Nadi is shaped so deeply by the violence he grew up in that even his growth doesn’t fully break away from it. The cutlery scene in the Wilds really stuck with me as an example of how deeply that upbringing runs through him.

Overall, the ending does bring a sense of resolution and a united world, but emotionally it just didn’t land for me. I couldn’t fully connect to the romance or the story.

3.5 stars. Strong ideas and world-building, but not a lasting emotional connection.

Thank you to NetGalley and Second Sky for the ARC.

[Gabrielle (belle.bookcorner) · Rating 4 out of 5]

Actual Rating: 4.5⭐

This was hands down my most anticipated finale, and it delivered on so many of the things I’d been hoping for ever since finishing book two.

Let’s start with the highlights: I loved seeing Nadi and Raziel finally reclaim their freedom, taking down every villain in their path and sending them straight back to hell.
The final showdown came with a bombshell twist I didn’t see coming, and honestly—it blew my mind.

Through it all, Nadi and Raziel remain devoted in their own unhinged, obsessive way, but there are also tender moments that balance the chaos.
With everything finally falling into place, they get the peace and happy ending they deserve. I imagine more quiet days ahead for them, instead of endless scheming and survival battles.

If I had one wish, it would be for a longer finale. The book felt a little short, and I would’ve loved more time exploring The Wild (the fae realm).

Still, as a trilogy, this series has been such a wild ride.
If you’re craving a dark, spicy romantasy with vampires and fae shifters with enemies-to-lovers, morally grey characters, marriage of convenience and secret identity tropes—this is absolutely a must-read!

I received a review copy through netgalley, and I am leaving this review voluntarily. Huge thank you to the publisher!

⚠️ 𝐓𝐖: murder, blood, violence, sexual content

[Olivia Host · Rating 4 out of 5]

Thank you to NetGalley and the publisher for allowing me this ARC in exchange for an honest review.

Oh where to begin. This is an interesting series that explores the boundaries of what fantasy readers think of fae & vampires in such a unique way. I appreciated the exploration (and of course the darker spice). This did not follow a super predictable plotline throughout the series which I appreciated.

I still, however, feel that the characters could use a little work (or maybe I just don't vibe with them). Nadi has always felt like she loses herself from time to time. This book it made more sense for her to feel softer & more vulnerable given the things that happen, but I still feel like we lose that ruthlessness from her in this even at the end. I sort of feel the same way about Raziel too. We're told he's ruthless but we aren't shown it so much as told it. There's a scene that lends more credit back to The Serpent, but I still never really felt like we were seeing whatever the author wanted us to see.

All together though this is a solid series that I enjoyed. I think I would have liked to see a bit different setup for the ending (it felt a little quickly resolved) but I appreciated it for it's overall uniqueness in plot & the willingness to "go there" with the spice!