Brad Meltzer is the 
New York Times bestselling author of
 Heroes for My Son, 
Heroes for My Daughter, 
The Lincoln 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 began his illustration career at Marvel Comics, and 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! and 
The Giggles Are Coming! He lives in New Jersey with his wife and their identical twin sons (when the boys are home from college).