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Throne of Nightmares

A Novel

Kerri Maniscalco

Ages 14–18

Readers rate it 4.0 (11 on Hardcover)

330 pages · Released Feb 10, 2026

Content report card

Throne of Nightmares parent’s guide: what’s inside

Medium confidence

LGBTQ+ themes

Substance use

What it offers

A note for parents

Throne of Nightmares is a fantasy romance adventure featuring magical stakes and supernatural threats, aimed at older teens. The story includes moderate action violence, some darker magical horror elements, and romantic tension between the leads, though specifics on sexual content and language are limited in available metadata. The themes emphasize courage, trust, and self-discovery through adversity, making it appropriate for mature teen readers comfortable with fantasy peril and romance.

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From the publisher

In this action-packed standalone fantasy romance from New York Times bestselling sensation Kerri Maniscalco, a book of dangerous magic draws two readers into a perilous quest to find it—and their own happy ending. “Beware of waking the gods, their dreams are often our nightmares ...” A prince who prefers games of the h... In this action-packed standalone fantasy romance from New York Times bestselling sensation Kerri Maniscalco, a book of dangerous magic draws two readers into a perilous quest to find it—and their own happy ending. “Beware of waking the gods, their dreams are often our nightmares ...” A prince who prefers games of the head to those of the heart. Prince Sloth hates leaving his enchanted library, but when a forgotten deity threatens the very fabric of the Underworld, he’s thrust into a race against time. He must find the Book of Nightmares—an ancient artifact that has the power to break worlds—before it unleashes a deadly game to free its master, the Goddess of Night. When a betrayal leaves him marked, and desperate, his path collides with a young woman who possesses the legendary Phoenix Tear—a portal stone unlike any other. A librarian who is all sweet sunshine … until she burns. Lore Brimstone has always loved getting lost in a book—but she never meant literally. Yet, after visiting a traveling caravan, she quickly finds herself transported to a terrifying but oddly familiar world—with the worst, twisted prince at her side. Realizing they are living out her favorite novels one by one, they face off against an increasingly dark magic as they try to survive the story. A twisted tale that means they can’t trust themselves—or their hearts. As Lore and Sloth navigate the pages of her beloved novels gone wrong, she must channel her inner main character to defeat the Book of Nightmares before the wall between the gods and mortals comes crashing down, dooming them all.

Shelved under

  • Fiction
  • Plot driven
  • Weak Character Development
  • Loveable Characters
  • Not Diverse Characters
  • Adventurous
  • funny
  • Fantasy

Books in the Prince of Sin series

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ISBN 9780316558167 · Little, Brown

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