Cassandra Clare made her fiction debut with "The Mortal Instruments" series, which has been on many bestseller lists. Cassandra lives in an old Victorian house in western Massachusetts with her fianc -, their cats, and lots and lots of books. Visit her website at CassandraClare.com. Learn more about "The Mortal Instruments" trilogy at MortalInstruments.com. Learn about her new trilogy "The Infernal Devices" at TheInfernalDevices.com.