Jalopy mechanic and were-creature Mercedes Thompson can change into a coyote whenever she wants to. As a favor, she agrees to back up vampire friend Stefan when he confronts another of his kind. But, being demon-possessed, that vampire proves deadlier than most and before she can do anything to help, Mercedes is in the middle of a war with vampires and werewolves.

"First Earth was devastated by the machine plague, a runaway nanotechnology that devoured all warm-blooded organisms below altitudes of ten thousand feet. Then the remnants of humankind turned on one another, provoking a brief, furious world war and the invasion of North America. Now Russian and Chinese armies hold California against the battered forces of the U.S.-Canadian Alliance. Nanotech researcher Ruth Goldman and Cam Najarro--a former Army...