If an angel can denounce God, could a demon betray the Devil?
The Guardians have finally recovered from the devastating revelation of Father's past when an old friend come seeking their aid. His request, to guard a woman relentelessly hunted by Lucifer's demon horde. But this woman is no ordinary mortal. She is a priestess blessed with an ability that could change the very world as they know it: the ability to turn demons human.
