Highland warrior, Dylan Macgregor learns revenge and retribution will not give him the peace he seeks. Every day since, he battles the darkness. Three-hundred years after being turned on a battlefield by an ancient born vampire, Dylan meets his life-mate, FBI profiler Special Agent Caitlin Donovan. When he discovers she’s been targeted for death by a demon overlord, can he find the assassins before they find her? The last of his light is at risk if he kills again, and then what will become of their love?