Cassandra Clare is the author of the internationally bestselling Mortal Instruments, The Infernal Devices, The Bane Chronicles, The Shadowhunter's Codex and Tales from the Shadowhunter Academy. There are more than 35 million copies of her books in print worldwide. They have been translated into 30 languages and have appeared globally on bestseller lists. The Mortal Instruments: City of Bones is now a major movie. Cassandra lives in Massachusetts, USA. Visit her online at CassandraClare.com. Learn more about the world of the Shadowhunters at UKShadowhunters.com.

Joshua Lewis lives in western Massachusetts with his wife, Cassandra Clare, three cats, and several thousand books. When not exhaustively researching arcane bits of the Shadowhunter universe, he can be found playing music, writing his own fiction, and keeping the weight of several thousand books from collapsing the house.