Lily's parents have sent her to a fancy boarding school in Chicago filled with the ultra-rich. If that wasn't bad enough, she's hearing and seeing bizarre things on St. Sophie's creepy campus. Her roommate, Scout, keeps her sane, but keeps disappearing at night. When one day Lily finds Scout running from real-life monsters, she learns the hard way that Scout is involved in a splinter group of rebel teens. They protect Chicago from demons, vamps, and dark magic users. It's too bad Lily doesn't have powers of her own to help. At least, none that she's discovered yet ...