Avery Roe wants only to claim her birthright as the witch of Prince Island and to make the charms that have kept the island's sailors safe at sea for generations, but instead she is held prisoner by her mother in a magic-free life of proper manners and respectability.Avery thinks escape is just a matter of time, but when she has a harrowing nightmare, she can see what it means: She will be killed. She will be murdered. And she's never been wrong before.
Desperate to change her future, Avery finds a surprising ally in Tane—a harpoon boy with magic of his own. But as time runs out to unlock her magic and save herself, Avery discovers that becoming a witch requires unimaginable sacrifice.