The Demon King

Nightfall Saga #3

by Peter V. Brett

The third and final book in The Nightfall Saga, the thrilling and action-packed epic fantasy series set in the world of The Demon Cycle, from New York Times bestselling author Peter V. Brett

“Heart-wrenching, smart, and modern . . . The Desert Prince has set a new standard for fantasy.”—Wesley Chu, author of The War Arts Saga

He is known as The Prince of Lies. The Father of Demons. He is Alagai Ka, the Demon King.

Though humanity won a hard-fought victory in its war against demonkind, the Demon King has escaped in search of a new queen to restart his dark hive, and has found signs of one on a distant shore.

But pursuing him are humanity's best Olive Paper and Darin Bales, whose legendary parents brought demonkind low once before. Olive and Darin will not rest until the demons are defeated, and so relentless is their hunt that they have followed Alagai Ka across the sea to a strange new land.

There they discover a culture unlike any they have never known, where demons live alongside humans as servants and companions. And there they meet the demon's masters--including a seductive prince who is drawn to Olive--who seem unable or unwilling to understand the danger they are in.

Because no human is safe from the Demon King's thirst for war--and every human must join the battle against his kingdom of death.

Book Three of The Nightfall Saga

Don’t miss any of Peter V. Brett's riveting Nightfall 
THE DESERT PRINCE• THE HIDDEN QUEEN • THE DEMON KING

Genres: Fantasy, Adult, High Fantasy, Science Fiction Fantasy, Fiction, Epic Fantasy

Kindle Edition

Expected publication April 7, 2026

About the author

Peter V. Brett is the internationally bestselling author of the Demon Cycle series, which has sold over four million copies in 27 languages worldwide. Novels include The Warded Man, The Desert Spear, The Daylight War, The Skull Throne, and The Core. Other works include the Red Sonja: Unchained graphic novel and the Demon Cycle novellas The Great Bazaar, Brayan's Gold, Messenger's Legacy, and Barren. The Desert Prince, the first installment of his Nightfall Saga, published in August 2021. The sequel, The Hidden Queen, is due early 2024. He lives in Brooklyn.

www.petervbrett.com
Twitter: www.twitter.com/PVBrett
Instagram: https://instagram.com/pvbrett/
Facebook: https://www.facebook.com/PVBrett/
TikTok: @PVBrett

Reviews

[Cathy · Rating 5 out of 5]

not out yet, but someone gave it 1 star, so I gave it 5 stars to balance it. Not fair.

[April · Rating 5 out of 5]

Thank you to NetGalley and the publisher for providing me with an ARC of The Demon King by Peter V. Brett. All thoughts are my own.

This was easily my favourite book in the series so far.

The new setting and characters made the story feel fresh and exciting, while still feeling firmly grounded in the world that’s already been built. I really enjoyed getting to explore a different side of the universe, and the new relationships added a lot to the story.

The pacing was especially strong. It kept things moving in a way that made the book genuinely hard to put down, with enough tension and momentum to stay engaging throughout.

Overall, this was a really enjoyable read and a standout entry in the series for me. If you’ve been followingi the series, this one is well worth the time.

I will say that I wish we had a little more closure at the end. I’d have liked to have known more about certain characters.

[Annabelle · Rating 4 out of 5]

I started the Nightfall Saga before reading the Demon Cycle, but in the time between The Hidden Queen and now, I corrected that issue and though you don't strictly have to have read that series to enjoy this book, it certainly adds something knowing the history. As a housekeeping note, the book doesn't include a summary section of "So Far in the Series...", instead the author seamlessly incorporates the pertinent details of the past (even from the Demon Cycle) into the main characters' narration and it definitely does not come across as dry exposition. The story is narrated in the first person alternating between Olive Paper, Darin Bales, and to a lesser degree Alagai Ka. I have been waiting for this conclusion since the moment that I read the end of The Hidden Queen when we found out that Darin and Olive followed the Demon King across the sea and plan to hunt him down. We arrive to a new land with its own customs, including humans having demon companions, they make friends and enemies and get caught up in this culture but their target won't let them forget their mission and epic battle emanates. The ending caps off this trilogy nicely and it is clear that it is Darin and Olive's adventure as well as how they have grown from the experiences. With this last book complete, this also makes a very bingeable series for anyone (adult or young adult) who has yet to discover it.
I received access to this eARC thru NetGalley (for which I want to thank NetGalley and the publisher, Del Rey, Random House Worlds, Inklore) for an honest review. The opinion expressed here is my own.

[Paul Sparks · Rating 5 out of 5]

So probably not a good idea to read a book that is 3rd in current series, saying that the author does a superlative job in recapping albeit in short form what’s gone before, I have to admit to having my flabber being ghasted by this book, it drew me in completely and spat me out wanting more, I will be getting the previous books posthaste

[Jenn · Rating 3 out of 5]

This was okay. But it’s not the best written book. The pacing was the major problem because it was rushing. But I really do like the kind of different demons that appear in this book. I just can’t recommend this book.