“Around the world, black handprints are appearing on doorways, scorched there by winged strangers who have crept through a slit in the sky.

In a dark and dusty shop, a devil’s supply of human teeth grown dangerously low.

And in the tangled lanes of Prague, a young art student is about to be caught up in a brutal otherworldly war.

Meet Karou. She fills her sketchbooks with monsters that may or may not be real; she’s prone to disappearing on mysterious “”errands””; she speaks many languages — not all of them human; and her bright blue hair actually grows out of her head that color. Who is she? That is the question that haunts her, and she’s about to find out.”