Cassandra Clare is the #1 New York Times and USA TODAY bestselling author of Lady Midnight, Lord of Shadows, and Queen of Air and Darkness, as well as the internationally bestselling Mortal Instruments series and Infernal Devices trilogy. She is the coauthor of The Bane Chronicles with Sarah Rees Brennan and Maureen Johnson and Tales from the Shadowhunter Academy with Sarah Rees Brennan, Maureen Johnson, and Robin Wasserman. Her books have more than 50 million copies in print worldwide and have been translated into more than thirty-five languages and made into a feature film and a TV show. Cassandra lives in western Massachusetts. Visit her at CassandraClare.com. Learn more about the world of the Shadowhunters at Shadowhunters.com.

Sarah Rees Brennan is the New York Times bestselling author of the critically acclaimed Unspoken and The Demon’s Lexicon trilogy. Her most recent book, In Other Lands, was a Hugo Award finalist. Visit her at SarahReesBrennan.com.

Maureen Johnson is the New York Times bestselling author of over a dozen YA novels, including 13 Little Blue Envelopes, The Name of the Star, Suite Scarlett, and Truly Devious. Visit her at MaureenJohnsonBooks.com, MaureenJohnsonBooks on Tumblr, or @MaureenJohnson on Twitter.