Cassandra Clare is the author of the #1 New York Times, USA TODAY, Wall Street Journal, and Publishers Weekly bestselling Shadowhunter Chronicles. She is also the coauthor of the bestselling fantasy series Magisterium with Holly Black. The Shadowhunter Chronicles have been adapted as both a major motion picture and a television series. Her books have more than fifty million copies in print worldwide and have been translated into more than thirty-five languages. Cassandra lives in western Massachusetts with her husband and three fearsome cats. Visit her at CassandraClare.com. Learn more about the world of the Shadowhunters at Shadowhunters.com.

Robin Wasserman is the author of the novels Mother Daughter Widow Wife and Girls on Fire. A finalist for the Pen/Faulkner Award for Fiction and a Macdowell Fellow, her writing has appeared in Tin House, VQR, the Los Angeles Review of Books, and The New York Times. She is also the New York Times bestselling author of more than ten books for children and has been a writer and producer on several television shows, including Star Trek: Strange New Worlds and The Summer I Turned Pretty. Robin currently lives in Los Angeles.