#1 New York Times bestselling author Patricia Briggs€s Mercy Thompson series has been hailed as €œone 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 holed up in Adam€s house, Mercy can€t shake the feeling that something about the situation isn€t right.  Soon, her suspicions are confirmed when she learns that Christy has the farthest thing from good intentions. She wants Adam back and she€s willing to do whatever it takes to make it happen, including turning Adam€s pack against Mercy.  Mercy isn€t about to step down without a fight, but there€s a more dangerous threat circling. Christy€s stalker is more than a bad man€"in fact, he may not be human at all. As the bodies start piling up, Mercy must put her personal troubles aside to face a creature with the power to tear her whole world apart.