The next novel in the #1 NY Times bestselling series.

A demon-riding vampire has truly gone on a eliminating spree unlike any the Tri- Metropolitan areas has ever seen-and the undead and werewolves delivered to prevent him haven’t returned. A coyote can be no match for any demon, but shapeshifting mechanic Mercy Thompson can be immune to numerous vampiric powers-and those are her friends who are missing, including the two werewolves circling around her center. Game on…