The Poisoned King by Katherine Rundell

The Poisoned King

Katherine Rundell, Ashley Mackenzie

Random House Children's Books · Hardcover · September 11, 2025

#1 NEW YORK TIMES BESTSELLER • THE SECOND BOOK IN THE LANDMARK NEW FANTASY SERIES THAT BEGAN WITH IMPOSSIBLE CREATURES “Rundell is back with a sequel . . . which offers magical thrills for young readers and adults alike.”—The New York Times Return to the magic of the Archipelago in the dazzling sequel to the runaway, smash hit Impossible Creatures, hailed as “an instant classic” (Katherine Applegate, Newbery Medal Winner for The One and Only Ivan)! *This spectacular book features foil and embossing on the jacket, full-color designed endpapers, and brilliant stained edges* Christopher Forrester woke to find a dragon chewing on his face—and his heart leapt for joy!

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Who it’s for
For when you want a vivid, high-stakes fantasy that leans grand without getting mushy.
Genres
Mythical Creatures, Action & Adventure, Monsters
Published
Random House Children's Books, September 11, 2025

About this book

#1 NEW YORK TIMES BESTSELLER • THE SECOND BOOK IN THE LANDMARK NEW FANTASY SERIES THAT BEGAN WITH IMPOSSIBLE CREATURES “Rundell is back with a sequel . . . which offers magical thrills for young readers and adults alike.”—The New York Times Return to the magic of the Archipelago in the dazzling sequel to the runaway, smash hit Impossible Creatures, hailed as “an instant classic” (Katherine Applegate, Newbery Medal Winner for The One and Only Ivan)!

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*This spectacular book features foil and embossing on the jacket, full-color designed endpapers, and brilliant stained edges* Christopher Forrester woke to find a dragon chewing on his face—and his heart leapt for joy! He’d been dreaming of going back to the Archipelago, the secret cluster of islands where all the creatures of myth still live, and here was his summons. But there is a poison spreading in the Archipelago. Rooting it out will involve a daring rescue mission on the back of a sphinx, a stealthy entrance to a dragon’s lair, and a death-defying plan to save a prisoner held in the heart of a castle. At the center of this storm is Anya: a small girl with a flock of birds at her side, a new-hatched chick in her pocket, and a ravenous hunger for justice. Katherine Rundell’s second thrilling installment in the Impossible Creatures series involves castles, dragons, and revenge—the things of which great stories are made. The splendors within are brought to life with fifty illustrations, including a map and a bestiary of magical creatures. A GOOD HOUSEKEEPING KIDS' BOOK AWARD • A WALL STREET JOURNAL BEST CHILDREN'S BOOK OF THE YEAR

Myth and Swash

For when you want a vivid, high-stakes fantasy that leans grand without getting mushy.

Come here for

  • mythic-scale adventure
  • serious fantasy energy

Expect

  • layered worldbuilding
  • pirate-adjacent momentum

Where it sits

Mythical Creatures90%
Action & Adventure68%
Monsters25%

Percentages are BookFrontier’s reading of the book.

Publisher categories

  • Survival Stories
  • Mythical Creatures
  • Magic & Fantasy
Authors
Katherine Rundell, Ashley Mackenzie
Publisher
Random House Children's Books
Published
September 11, 2025
Format
Hardcover
Reading lane
Survival Stories