When Harley's hyenas are taken hostage, it's no laughing matter! The
culprit is the Clown Prince of Crime, and landing a punch line on her
part-time partner won't be easy. Can Harley find a way to crash the
Joker's hideout, free her beloved pets, and prove, once and for all,
that the joke is really on him? Find out in this action-packed chapter
book for DC Super Hero and Super-Villain fans!