Effie Truelove has made a promise to keep her grandfather's magical books safe from danger. Whatever it takes. But it's not always easy when you're a pupil at the Tusitala School for the Gifted, Troubled and Strange. Together with her new schoolfriends, Maximilian, Wolf, Lexy and Raven, Effie must travel to the mysterious Otherworld and brave the terrifying Diberi, a secret organisation with plans that could destroy the entire universe.