Shadow Watcher (Darkness, #6)

In the wake of ridding their territory of a menace, Sasha has only one pressing duty left: find more human magic workers. And while it is undoubtedly important on some grand scale, the task is, in itself, surprisingly uneventful. That is, until a strange predator takes an interest in her and Charles on their trek home one evening. In the space of twenty-four hours Sasha's life goes from mundane to being stalked and threatened. A new shifter has moved into town, and if the whispered rumors are to be believed, something even more sinister is lurking behind, watching and waiting for the right moment to spring. But that isn't the only element that turns Sasha's life upside down. She has one hell of a secret that will change her and Stefan's life forever.