Brad Meltzer is the New York Times bestselling author of Heroes for My Son, Heroes for My Daughter, The Nazi Conspiracy, and a number of suspense novels like The Lightning Rod. He also helped find the missing 9/11 flag with his is History Channel television show Brad Meltzer's Lost History. He lives in Florida with his wife and their three children.

Christopher Eliopoulos has worked on thousands of comics, including the graphic novels Cosmic Commandos and Monster Mayhem. He is the author/illustrator of the picture books The Yawns Are Coming!, The Giggles Are Coming!, and A Little Emotional. He lives in New Jersey with his wife and their identical twin sons (when the boys are home from college).