From New York Times bestselling author Mac Barnett and Geisel Award-winning illustrator Greg Pizzoli, an uproarious early reader series about a mischievous rabbit, a cranky old lady, and a lovable dog.Jack, Rex, and the Lady visit the zoo. But when Jack gets hungry, he sneaks into a koala's cage to steal some snacks. In a case of mistaken identity, the Lady takes the koala home and leaves Jack stuck in the cage. How will Jack escape, and will the Lady and Rex be happier with