Cassandra knows her dark destiny. She is a muse, who will one day be sought by a Fallen angel, to be the mother of his nephilim child - a fate that will destroy her. Samandiriel walks alone amongst his Fallen brethren. He refuses to use mortal females as vessels for his evil offspring. He's determined to protect them. But now he's been summoned to capture a muse, Cassandra, against his will. Together Sam and Cassandra must fight to keep her alive and to prevent the Fallen from achieving their sinister goals. Cassandra trusts Sam, but he can't trust his own compulsion to mate with her. Can they stop the apocalypse before Sam's desire overtakes him?