Cassandra Clare is the #1 New York Times and USA TODAY bestselling author of The Red Scrolls of Magic, as well as the internationally bestselling Dark Artifices trilogy, Mortal Instruments series, and Infernal Devices trilogy. She is the coauthor of The Bane Chronicles with Sarah Rees Brennan and Maureen Johnson; Tales from the Shadowhunter Academy with Sarah Rees Brennan, Maureen Johnson, and Robin Wasserman; and Ghosts of the Shadow Market with Sarah Rees Brennan, Maureen Johnson, Kelly Link, 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. She lives in Ireland. 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.