The werewolf pack and Mercy Thompson's mate Adam have been abducted. Outclassed and on her own, Mercy may be forced to seek assistance from any ally she can get, no matter how unlikely.

" #1 New York Times bestselling author Patricia Briggs's Mercy Thompson series has been hailed as "one of the best" (Fiction Vixen). Now, Mercy must deal with an unwanted guest-one that brings a threat unlike anything she's ever known. An unexpected phone call heralds a new challenge for Mercy. Her mate Adam's ex-wife is in trouble, on the run from a stalker. Adam isn't the kind of man to turn away a person in need-and Mercy knows it. But with Christy...

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.