In a world where "witches, vampires, werewolves, and shape-shifters live beside ordinary people" (Booklist), it takes a very unusual woman to call it home. By day, Mercy Thompson is a car mechanic in Eastern Washington. By night, she explores her preternatural side. As a shape-shifter with some unusual talents, Mercy's found herself maintaining a tenuous harmony between the human and the not-so-human on more than one occasion. This time she may get more than she bargained for.