When Zack Allen reveals his secret superhero identity, everything in his life changes. Suddenly, he's the coolest kid at school and the world's greatest athlete. But can he compete without wearing the Zinc Alloy suit? Find out what happens when the robot suit comes off.

Donald Lemke works as a children's book editor and writer. He has written dozens of books for young readers--from board books to middle-grade novels--that often include today's most popular characters, such as Batman, Superman, Scooby-Doo, and more. He lives in St. Paul, Minnesota, with his beloved family, which includes his wife, Amy, and their three growing-up-way-too-fast daughters.