Blood Divine by Greg Howard

Cooper Causey spent a lifetime eluding the demons of his youth and suppressing the destructive power inside him. But a disconcerting voicemail lures Cooper back home to the coast of South Carolina and to Warfield—the deserted plantation where his darkness first awakened.

While searching for his missing grandmother, Cooper uncovers the truth about his ancestry and becomes a pawn in an ancient war between two supernatural races. In order to protect the only man he’s ever loved, Cooper must embrace the dark power threatening to consume him and choose sides in a deadly war between the righteous and the fallen.