Synopsis according to Goodreads:
In a dark and dusty shop, a devil’s supply of human teeth grows dangerously low.
And in the tangled lanes of Prague, a young art student is about to be caught up in a brutal otherwordly 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.
It has everything, from romance to war, friendship and family to secrets and fears. It’s a fantasy, but grounded in modern-day Prague. The main character is a teenager, but the story is epic and has adult subtleties. It involves war but it isn’t as simple as good versus evil. And did I mention the poetic language?