Eight years have passed since the Battle of the Serpent. But in the icy north, Lady Nore of the Court of Teeth, has reclaimed the Ice Needle Citadel. There she is using an ancient relic to create monsters of stick and snow who will do her bidding and exact her revenge. Suren, child queen of the Court of Teeth, and the one person with power over her mother, fled to the human world, where she lives feral in the woods. Now seventeen, Oak is charming, beautiful and manipulative. He's on a mission that will lead him into the north, and he wants Suren's help. But if she agrees, it will mean guarding her heart against the boy she once knew and a prince she cannot trust, as well as confronting all the horrors she thought she had left behind.