Callum Hunt's summer break isn't like other kids'. His closest companion is a Chaos-ridden wolf, Havoc. His father suspects him of being secretly evil. And, of course, most kids aren't heading back to the magical world of the Magisterium in the fall.*It's not easy for Call . . . and it gets even harder after he checks out his basement and discovers that his dad might be trying to destroy both him and Havoc.*Call escapes to the Magisterium -- but things only intensify there. The Alkahest -- a copper gauntlet capable of separating certain magicians from their magic -- has been stolen. And in their search to discover the culprit, Call and his friends Aaron and Tamara awaken the attention of some very dangerous foes -- and get closer to an even more dangerous truth.*As the mysteries of the Magisterium deepen and widen, bestselling authors Holly Black and Cassandra Clare take listeners on an extraordinary journey through one boy's conflict -- and a whole world's fate.