Based on the five-book middle grade fantasy series by bestselling authors Holly Black ("The Spiderwick Chronicles") and Cassandra Clare ("The Mortal Instruments"). In the new series, twelve-year-old Callum Hunt has grown up knowing three rules by heart. Never trust a magician. Never pass a test a magician gives you. And never let a magician take you to the Magisterium. Callum is about to break all the rules. And when he does, his life will change in ways he can't possibly imagine.