At the Alfea International School, students come from all over the Otherworld to train. To learn magic. To discover how to control their powers. Inside the school's castle, five students - complete strangers - are assigned as roommates: Aisha is an athlete and a classic overachiever whose control over water is the envy of her fellow students. Terra is an awkward do-gooder whose power over the natural world can overwhelm rivals unexpectedly. Musa is an introvert who keeps to herself so her mind isn't overwhelmed by the emotions of those around her. Stella is a princess - yes, a real princess - whose command over light inspires but also intimidates. And then there's Bloom, the outsider, the girl from the human world whose power over fire almost destroyed her family. These five teenagers want what every teenager wants... to figure out who they are. To make friends. To fit in at their new school. But when an ancient, long-vanquished evil suddenly resurfaces outside the castle walls, these five teenagers [are] forced to put their powers to the test. And they'll discover a secret so powerful, it will challenge everything they know about the Otherworld...and themselves.