Mercy Thompson is a walker, a magical being with the power to transform into a coyote. She lives on the fine line dividing the everyday world from a darker dimension, observing the supernatural community while standing apart. When Mercy travels to the Tri-Cities of Washington for a job interview, she quickly finds herself smack-dab in the middle of a gang war between rival packs of werewolves. And as if fangs and fur weren't bad enough, Mercy must...