Gordon Korman wrote his first book at age fourteen and since then has written more than eighty middle grade and teen novels. Favorites include the New York Times bestselling The 39 Clues: Cahills vs. Vespers, Book One: The Medusa Plot; Ungifted; Pop; and Schooled. Gordon lives with his family on Long Island, New York.

Hannah Templer is a queer cartoonist currently living in Baltimore, Maryland. She has worked as a colorist, cover artist, and interior artist on titles such as GLOW, Samurai Jack, Jem and the Holograms, Captain Marvel, and Tomb Raider.

She is also the creator of Cosmoknights, an original graphic novel series published in 2019 by Top Shelf Comics. Her work as a cover artist-with clients including Dark Horse, IDW, Valiant, BOOM! Studios, Marvel, HarperCollins, and Abrams Books-is as extensive as it is dynamic and stunning.