Things have started to scare Nellie Cavendish. Crows gather near her, electronics short out when she touches them, when she's upset it storms, and she's tormented by nightmares. The only clue to the goings-on she has is a mysterious letter from her father, sent ten years after his death. The letter calls her to Salem, where she must stop some unnamed evil. FBI agent Grayson Sheridan has learned not to be surprised by the macabre. But Salem is different. His undercover partner has vanished, and he feels that something deadly is hiding in the town. Nellie could be the only one who can help.