Soul Hunger - Ra's Chosen, #1

Volume one in the Ra's Chosen series. As one of Ra's Chosen warriors, Mehen must protect mortals from the undead who hunt them. Gifted by the sun god Ra with immortality and other abilities, Mehen has never struggled with the task. Until one night when he saves a woman from three undead, and finds himself in need of saving. Something about the woman stirs him, and he's consumed by his need not only for her body, but also her blood.
Blythe might have been saved by the man who took out her attackers, but her reaction to the feel of his arms around her and the way his gaze wanders to her neck doesn't make her feel much safer. She's taken to his headquarters against her will and finds herself a prisoner. When he unleashes passion in her like she's never known, she realizes she'll do anything to stay imprisoned. But Blythe is not who she seems, and Mehen finds himself in the fight of his life to save the woman he loves from the evil that yearns to possess her.