Wendy Mass is the New York Times bestselling author of The Candymakers series, 11 Birthdays, and many other novels for young readers, including the Schneider Family Book Award winner A Mango-Shaped Space. She lives in New Jersey with her family and their very cute dog. 

G. T. Karber grew up in a small town in Arkansas, the son of a judge and a civil rights attorney. As a lifelong mystery fan, he has organized more than forty immersive mysteries in Los Angeles.