Car mechanic/shapeshifter Mercy Thompson must protect her friends from vampire queen Marsilia's revenge.

Car mechanic and shapeshifter Mercy Thompson has never known any others of her kind. Until now. As Mercy comes to terms with this new information, an evil is stirring in the depths of the Columbia River--and if Mercy and her mate, the Alpha werewolf Adam, are to have any hope of surviving, they will need all the resources the shifters can offer.

When mechanic and shapeshifter Mercy Thompson 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...

"Mercy Thompson, car mechanic and shapeshifter, must face her greatest fears in this chilling entry in the #1 New York Times bestselling series. The vampire Wulfe is missing. Since he's deadly, possibly insane, and his current idea of "fun" is stalking Mercy, some may see it as no great loss. But when he disappears, the Tri-Cities pack is blamed. The Mistress of the vampire seethe informs Mercy that the pack must produce Wulfe to prove their innocence,...