After realizing his father is trying to destroy him, Callum Hunt and Havoc, his Chaos-ridden wolf, escape back to the magical world where he and his friends become involved in the search for the stolen Alkahest.

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 school in the magical world of the Magisterium . . . 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 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 readers on an extraordinary journey through one boy’s conflict -and a whole world’s fate.

From the imaginations of bestselling authors Holly Black and Cassandra Clare comes a heart-stopping plunge into the magical unknown. Think you know magic? Think again. The Magisterium awaits . . . Most people would do anything to get into the Magisterium and pass the Iron Trial. Not Callum Hunt. Call has been told his whole life that he should never trust a magician. And so he tries his best to do his worst - but fails at failing. Now he must enter the Magisterium. It's a place that's both sensational and sinister. And Call realizes it has dark ties to his past and a twisty path to his future. The Iron Trial is just the beginning. Call's biggest test is still to come . . .

Callum Hunt's life has fallen apart. His friend is gone. The spy has escaped. His secret is out. He is facing an existence behind bars, banished from the rest of the magical community for what he is - for what he might become. But a shocking revelation has promised freedom - at a cost. Will he stay strong, and faithful to his friends and teachers? Or take the risk, and destroy everything he's ever loved? This fourth year at the Magisterium will be unlike anything else that has gone before . . . 'I can't wait to read more of this series!' - Rick Riordan

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.

The final, thrilling instalment in this extraordinary series from bestselling authors Holly Black and Cassandra Clare. A generation ago, powerful mage Constantine Madden came close to achieving what no magician had ever achieved: the ability to bring back the dead. He didn't succeed . . . but he did find a way to keep himself alive, inside a young child named Callum Hunt. Facing up to what he is, Callum has battled chaos and evil across four years of magical training at the Magisterium, eventually defeating the armies of chaos in an epic battle. It came at a cost. Now, triumphant and heartbroken, Callum Hunt has just about had enough, and is ready to complete his training. But the evil Callum faced has not given up just yet . . .

Things have been better for Callum Hunt since the evil Constantine Madden was "officially" destroyed, even his relations with his father have improved, so he is happy to get back to the Magisterium for his Bronze Year to continue his magical studies--but when one of the students is murdered, Call and his friends, Tamara and Aaron, must track down the killer, without revealing the fact that Call is Madden reborn.

The stakes have never been higher than in the final installment of Magisterium from the bestselling powerhouses of Holly Black and Cassandra Clare.

Continues the adventures of Call and his friends in the Magisterium.