Suren, child queen of the Court of Teeth, has fled to the human world where she lives feral in the woods. She believes herself forgotten until the storm hag, Bogdana chases her through the night streets. Suren is saved by none other than Prince Oak, heir to Elfhame, to whom she was once promised in marriage. 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 left behind.