Frances Hardinge’s Traitors’ Nest is a wildly inventive YA fantasy set in a kingdom where godlike Players move castles across the land like pieces on a chessboard. Packed with political intrigue, gentle humor, and high-stakes adventure, it explores what happens when ordinary people refuse to remain pawns in someone else’s game.
Traitors’ Nest has been added to my September 2026 – New Release Spotlight list on Amazon.
Author: Frances Hardinge
Genre: historical fantasy
Setting: Kingdom of Thaletal, an alternate medieval Europe
Themes: survival, chess, castles, games, competitions, rebellion, oppression, siblings, power, worldbuilding, death of a parent, tyranny
Protagonist: male, age 15, cues white, recently orphaned
Recommended for: Grades 7-12
Starred reviews: SLJ, Horn Book, Kirkus, and Publishers Weekly
Publication date: September 8, 2026
WHAT IT’S ABOUT
Fifteen-year-old Burr has always lived beside the same brown castle, ruled by a generally benevolent noble. His quiet farming community holds little strategic value, so the Great Game has always seemed distant—until the familiar castle vanishes and an ominous red fortress takes its place.
The new ruler, Lord Stephen, seizes the villagers’ livestock and winter food stores. When Burr’s father joins a rebellion against him, the uprising fails, and Burr is forced to denounce his father publicly before watching him die. Now responsible for his three younger sisters, Burr must find a way to keep his family and community alive.
Another castle shift brings a slate-colored fortress and a new tyrannical lord. While its soldiers are away, Burr, his sisters, and several friends infiltrate the castle and stage an unlikely coup with help from Lady Berenice, the lord’s reluctant fiancée. Their victory becomes far more complicated when the castle moves again—with the young rebels still inside it.
WHY IT STANDS OUT
As Burr and his companions are carried across the kingdom, they encounter fragile alliances, suspected traitors, and an ancient figure known as the Magpie Maiden, whose debts are collected at a dangerous price. To escape the Players’ control, they must uncover the origins of the Great Game and determine whether its rules can be changed.
Hardinge balances an ingenious fantasy premise with deeply human characters. Burr is a reluctant but principled leader whose grief never eclipses his compassion or his determination to protect others. The shifting castles create plenty of fast-paced action, but the story also raises thoughtful questions about power, inequality, trust, personal agency, and the sacrifices demanded of ordinary people by those who treat their lives as game pieces.
WHO WILL LOVE IT
Readers who enjoy medieval-inspired fantasy, political intrigue, clever worldbuilding, and unlikely young revolutionaries should find much to love here. With starred reviews from Kirkus, Publishers Weekly, School Library Journal, and The Horn Book, Traitors’ Nest is a strong choice for Grades 7 and up.
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