Mercy Thompson, car mechanic and shapeshifter, never knows what the day€"or night€"may bring. But in the fifth novel in the #1 New York Times bestselling series, she's about to learn that while some secrets are dangerous€"those who seek them are just plain deadly€¦  Mercy is smart enough to realize that when it comes to the magical Fae, the less you know, the better. But you can€t always get what you want. When she attempts to return a powerful Fae book she€d previously borrowed in an act of desperation, she finds the bookstore locked up and closed down.  It seems the book contains secret knowledge€"and the Fae will do just about anything to keep it out of the wrong hands. And if that doesn€t take enough of Mercy€s attention, her friend Samuel is struggling with his wolf side€"leaving Mercy to cover for him, lest his own father declare Sam€s life forfeit.  All in all, Mercy has had better days. And if she isn€t careful, she might not have many more to live...