Suzy Kline, the author of thirty-two previous Horrible Harry books and four books about Song Lee, lives in Willington, Connecticut with her husband, Rufus. Suzy graduated from the University of California at Berkeley with a degree in European history. Suzy taught in 5th and 6th grades at Shannon Elementary School in Richmond, California for 3 years, and 2nd and 3rd grades at Southwest Elementary School in Torrington, Connecticut for 24 years before retiring. She now enjoys writing full-time and visiting schools and libraries.
Amy Wummer has illustrated many children's books, including the Marvin Redpost series by Louis Sachar and a number of previous books in the Horrible Harry series. She and her husband live in Reading, Pennsylvania, with their three children.