"Mercy Thompson inhabits two worlds without truly belonging to either. To the human inhabitants of Tri-Cities she's an oddity, a fiercely independent woman who repairs cars for a living. To the town's darker residents; werewolves, vampires, and fae, she's a walker, a last-of-her-kind magical being with the power to become a coyote. Mercy warily straddles the fine line dividing our everyday world from that darker dimension...