The seventh novel in the international number one best-selling Mercy Thompson series - the major urban fantasy hit of the decade.

Mercy Thompson: Mechanic, Shapeshifter, Fighter.

Mercy Thompson's life has undergone a seismic change. Since becoming the mate of Alpha werewolf Adam and stepmother to his daughter Jesse, her life finally seems to be calming down. But after an accident in bumper-to-bumper traffic, Mercy suddenly can't reach Adam or the rest of the pack. All she knows is that Adam is angry and in pain.

With the werewolves fighting a political battle to gain acceptance from the public, Mercy fears Adam's disappearance may be related - and that the pack is in serious danger. Outclassed and on her own, Mercy may be forced to seek assistance from any ally she can get, no matter how unlikely.