Ilsa thought she was finding salvation in the arms of a fallen angel, but the seed growing within her womb is a prophecy of primal chaos that demands to be fed with blood and lust. As a dark cult hunts her and the Watchers seek to claim their prize, she must choose between her humanity and a carnal hunger that could birth a god or destroy the world. The thin veil between the celestial and the damned is about to tear, and only Ilsa’s surrender to her darkest instincts can ensure her survival.