Part of the Impossible Creatures Series

The Poisoned King

Paperback

Grades Grade 5 & Up
Ages 10 and up

#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)!

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

Bestseller

A CCBC Choices List Selection!
A 2026 Bank Street College Best Children’s Book of the Year

"Rundell is back with a sequel....which offers magical thrills for young readers and adults alike." —The New York Times

"A brilliantly imaginative, wildly adventuresome, heartstring-tugging sequel in a series destined to become a classic....With many moments of deadly peril, luminous triumph, deep grief, and sweet wisdom, it’s a thrilling, emotional ride." —Common Sense Media

★ "A spectacular return to a magical world." —Kirkus Reviews, starred review

★ "Rundell’s ability to render the nobility and pathos of the human experience will take readers on a profoundly affecting journey that they will remember long after the book is closed." —The Horn Book, starred review

"A high-energy and imaginative sequel....Rundell expertly shapes another magical adventure in The Poisoned King." —Shelf Awareness

ISBN 9780593809938 (Paperback)
Published on Aug 4, 2026
Published by Yearling
Pages 304
Dimensions 5-1/2 x 8-1/4
Age Range 10 and up
Grade Grade 5 & Up
Reading Level Lexile: 640L | Fountas/Pinnell: Z

ISBN 9780593809907 (Hardcover)
Published on Sep 11, 2025
Published by Knopf Books for Young Readers
Pages 304
Dimensions 6 x 8-1/2
Age Range 10 and up
Grade Grade 5 & Up
Reading Level Lexile: 640L | Fountas/Pinnell: Z

ISBN 9780593809914 (Hardcover Library Binding)
Published on Sep 11, 2025
Published by Knopf Books for Young Readers
Pages 304
Dimensions 6 x 8-1/2
Age Range 10 and up
Grade Grade 5 & Up
Reading Level Lexile: 640L | Fountas/Pinnell: Z

ISBN 9780593809921 (Ebook)
Published on Sep 11, 2025
Published by Knopf Books for Young Readers
Pages 304
Age Range 10 and up
Grade Grade 5 & Up
Reading Level Lexile: 640L | Fountas/Pinnell: Z

ISBN 9780593830109 (Audiobook Download)
Published on Sep 11, 2025
Published by Listening Library
Age Range 10 and up
Grade Grade 5 & Up
Reading Level Lexile: 640L | Fountas/Pinnell: Z

Katherine Rundell

KATHERINE RUNDELL is the internationally bestselling author of Impossible Creatures. Her other books for children include Rooftoppers, Cartwheeling in Thunderstorms, The Wolf Wilder, The Explorer, and The Good Thieves. She grew up in Zimbabwe, Brussels, and London, and is currently a Fellow of St. Catherine’s College, Oxford. For adult readers, Rundell has written Vanishing Treasures: A Bestiary of Extraordinary Endangered Creatures and Super-Infinite: The Transformations of John Donne, which won the Baillie Gifford Prize for Non-Fiction. She was the recipient of the British Book Award for Book of the Year and Author of the Year.

Ashley Mackenzie

ASHLEY MACKENZIE is a Canadian artist and illustrator with a special affinity for dragons, dryads, and all magical creatures.

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