How did the Joker become Batman's archenemy? Discover the story behind the Clown Prince of Crime's journey from small-time crook to big-time baddie, including the source of his crazy clown face. With action-packed illustrations and easy-to-follow text, these early reader books are perfect for super hero fans and super-villain fans alike. The Capstone Interactive edition comes with simultaneous access for every student in your school and includes read aloud audio recorded by professional voice over artists.