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 . . .