Magisterium: The Golden TowerBy: Holly Black, Cassandra Clare Series: The Magisterium 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