Hermione rolled her eyes and broke free of his grip on her, but the demon was immune to her disdain as he stretched his wings and preened. "I am an evolution in power, but not the pinnacle. Whatever I’ve attained as the product of mortal and immortal birth, the cross of two celestial beings would be greater, still. It’s never been done, and the Light fears it above all else because of the threat such power represents—especially outside of their control."