Vampire Dylan Macgregor has an extensive past, born of a beserker father and a fae mother. The highland warrior learned the hard way that revenge does not guarantee peace. Three-hundred years after dying on a battlefield and being tuned by an ancient vampire, Dylan fights the growing darkness. But a promise made is a promise kept. He's not ready to abandon his dream of finding his true life-mate when FBI profiler Special Agent Caitlin Donovan appears. The woman he's waited for all his life is targeted for death by the demons invading his bayou territory, and Dylan faces losing everything to keep her safe.