When Paxton C. Heymeyer's babysitter tells him to say the magic word, she could never have imagined that what would happen next would be a walrus running after her, an elephant in the living room playing cards, and a full water park and moat in the front yard. And that's just the beginning.... Ingeniously conceived by bestselling author Mac Barnett and illustrated by rising star Elise Parsley, this is a read-aloud tour de force.