And there are vampires, too? Werewolves, warlocks, all that stuff?" Clary gnawed her lower lip. "So I hear." "And you kill them, too?" Simon asked, directing the question to Jace, who had put the stele back in his pocket and was examining his flawless nails for defects. "Only when they've been naughty.
Cassandra ClareWill: Have you ever seen what happens to someone with demon pox? First it lies dormant. One begins to turn yellow and green. Then the swelling sets in - Jem: THERE IS NO SUCH THING AS DEMON POX.
Cassandra Clare