Severed from the Legendborn. Oathbound to a monster. Bree Matthews is alone. She exiled herself from the Legendborn Order, cut her ancestral connections, and turned away from the friends who can’t understand the impossible cost of her powers. This is the only way to keep herself – and those she loves – safe. But Bree’s decision has come with a terrible price: an unbreakable bargain with the Shadow King himself, a shapeshifter who can move between humanity, the demon underworld, and the Legendborn secret society. Meanwhile, the other Scions must face war with their Round Table fractured, leaderless, and missing its Kingsmage. As a string of mysterious kidnappings escalates and Merlins are found dead, it becomes clear that no matter how hard Bree runs from who she is, the past will always find her . . .