Half wolf, half man, Aragon has abandoned his brethren to repay a debt of honor; he is sworn to kill a rogue Blood Hunter, though exacting revenge will doom him to a ghostly existence trapped between two worlds. But when a mortal woman unexpectedly calls him to her side, the heat of her soft flesh arouses a hunger in him that threatens to complicate his mission. Dr. Annette Batista, a dedicated healer, is determined to find her missing sister. With the amulet found at the site of her sister's disappearance, she unwittingly summons a shadowy warrior. She wonders if she can trust this powerful male named Aragon, who claims he can vanquish her sister's captor -- the very monster he's vowed to destroy. Or is Annette blinded by her shocking passion for the most alluring, mysterious man she's ever seen?