Mercy Thompson, an auto mechanic and werewolf, never knows what day—or night—might bring in a world where “witches, vampires, werewolves and werewolves live alongside ordinary people.” But he knows that despite the danger of some secrets, those who try to reveal them are more dangerous... Mercy was smart enough to understand that when it comes to magical people, the less you know, the better. But you don't always get what you want. When she decides to return the source of others' power, which she previously borrowed in a moment of desperation, she finds the bookstore closed. The book seems to hold secrets - and others will do anything to keep it from falling into the wrong hands. And if that weren't enough to get Mercy's attention, her friend Samuel fights his wolf, forcing Mercy to cover for him in front of her father so he doesn't give Samuel a death sentence. Anyway, Mercy has seen better days. And if she is not careful, there will be no such people at all...