When Cora's father dies and she discovers her family isn't entirely human, she finds herself surrounded by people who are even less human than she is. Cora is left wonderingwhat these new people want from her, and why they haunt her dreams. Now she fights to save what is left of her family from the alluring abilities of creatures she never dreamed existed, while trying to understand what she is truly capable of and just how far she is willing to go to save them.