Even Batman needs a crime-fighting canine by his side. But how did Ace become the Dark Knight's loyal Bat-Hound?
How did Harley Quinn become Batman's jolly jester enemy? Discover the story behind this Super-Villain's journey from promising psychologist to Clown Princess of Crime, including the source of her zany mad mind. With action-packed illustrations and easy-to-follow text, this DC chapter book is perfect for early readers.