Brad Meltzer is the New York Times bestselling author of the Ordinary People Change the World series, 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 and his wife have identical twin sons and live in New Jersey.