Once per generation, the Valkyrie-turned-angel Areala embodies herself in a worthy sister of the Warrior Nun order, an elite class of fighters for the Vatican. Areala's purpose is to battle the forces that would seek to destroy her church and Mankind.
Shannon Masters, the current Areala, now faces her greatest nemesis: Ivan Seethe, a wealthy, ruthless businessman bent on gaining vast, occult power. Seethe seeks the Books of Peril, ancient tomes containing cursed warrior spirits. His agents have already stolen the first book from Areala's own church. Does the Warrior Nun have a prayer of stopping him?