Description It's senior year at St. Joan's Academy, and school is a pressure cooker. College applications, the battle for valedictorian, deciphering boys' texts: Through it all, Colleen Rowley and her friends are expected to keep it together. First it's the school's queen bee, Clara Rutherford, who suddenly falls into uncontrollable tics in the middle of class. Her mystery illness quickly spreads to her closest clique of friends, then more students and symptoms follow. Soon the media descends on Danvers, Massachusetts, as everyone scrambles to find something, or someone, to blame. Only Colleen comes to realize what nobody else has: Danvers was once Salem Village, where another group of girls suffered from a similarly bizarre epidemic three centuries ago. Inspired by true events from seventeenth-century colonial life to the halls of a modern-day high school Conversion casts a spell.