Last fall, Cynthia Rothschild saved her best friend, as well as the entire student body, from the demon librarian, Mr. Gabriel, all while executing the most awesome set design for the school musical, Sweeney Todd. But now that all that demon stuff is behind her, Cyn is looking forward to the best summer ever at theater camp with her former-crush-and-now-boyfriend, Ryan Halsey. Once she gets to camp, though, Cyn realizes this summer might not be all she's been hoping for. First, Ryan's best camp friend is a girl (which Ryan had never mentioned to Cyn), and she just happens to be ridiculously pretty. Plus, it seems the demon stuff is not entirely over as Cyn had hoped. At least any new demons that show up to ruin her summer can't possibly be as evil as Mr. Gabriel. It's not like he could somehow come back to life to seek his terrible revenge or something...