紐約時報推薦的奇幻小說《殺人恩典》Graceling系列作，繼《火兒》）（Fire）與《碧塔藍》（Bitterblue）之後，知名美國青少年奇幻作家克莉絲汀．卡修（Kristin Cashore），睽違數年再次推出續作。

　　Winterkeep延續《碧塔藍》的故事，孟汐（Monsea）王國的新任女王碧塔藍，繼承王位後，五年間的勵精圖治、開明治理，一掃父王的暴虐遺患，拯救王國於水火之中。聽聞遠東的托拉大陸（Torla)有個小國冬藏（Winterkeep），那裡的人狐可以透過心電感應溝通，並且有巧奪天工的飛船科技。女王碧塔藍遣使過去尋求合作，但均杳無音訊。於是她決心親自前往，帶著間諜哈瓦（Hava）與心腹吉東（Giddon）踏上路程。
　
　　詭譎的政治風雲，風波未平，各有各的謀算。檯面下波濤洶湧，暗流襲來。與此同時，冬藏境內，羅威沙（Lovisa Cavenda）作為生於政治世家的女兒，她暗中觀察，伺機等待。她將是轉機的關鍵人物，但唯有超越自我，才能蛻變成一方奇蹟……
　　The highly anticipated next book in the New York Times bestselling, award-winning Graceling Realm series, which has sold 1.3 million copies.

　　For the past five years, Bitterblue has reigned as Queen of Monsea, heroically rebuilding her nation after her father's horrific rule. After learning about the land of Torla in the east, she sends envoys to the closest nation there: Winterkeep--a place where telepathic foxes bond with humans, and people fly across the sky in wondrous airships. But when the envoys never return, having drowned under suspicious circumstances, Bitterblue sets off for Winterkeep herself, along with her spy Hava and her trusted colleague Giddon. On the way, tragedy strikes again--a tragedy with devastating political and personal ramifications.

　　Meanwhile, in Winterkeep, Lovisa Cavenda waits and watches, a fire inside her that is always hungry. The teenage daughter of two powerful politicians, she is the key to unlocking everything--but only if she's willing to transcend the person she's been all her life.