In pre-publication, Koertge was listed as the primary author.
Gary D. Schmidt is the bestselling author of Orbiting Jupiter, The Labors of Hercules Beal; Just Like That; National Book Award finalist Okay for Now ; the Newbery Honor and Printz Honor Book Lizzie Bright and the Buckminster Boy; the Newbery Honor Book The Wednesday Wars, and more. He is also contributor to and co-editor of the acclaimed short story collection A Little Bit Super, co-edited by Leah Henderson, and the co-author, along with Ron Koertge, of A Day at the Beach. He lives in rural Michigan.