Demon thief

About “Demon thief”

Demon Thief is a 2005 novel by Darren Shan. Kernel Fleck has always known he's weird: he sees strange, multi-colored patches of light swirling through the air. But it isn't until a window opens into a demon world, with horrific consequences, that Kernel discovers his powers. As a Disciple, his mission is to hunt the viciously powerful Demonata, to the death.