CASSANDRA CLARE is the author of the New York Times, USA Today, Wall Street Journal and Publishers Weekly bestselling Mortal Instruments series and Infernal Devices trilogy. Her books have more than twenty million copies in print worldwide and have been translated into more than thirty-five languages. Cassandra lives in western Massachusetts, USA. Visit her online at www.cassandraclare.com. Learn more about the world of Shadowhunters at www.ukshadowhunters.com.