Julia Marks is short. She looks two years younger than she really is. The summer has started and her two best friends are away on vacation, and she misses her dog Ramon, who recently died. Then her mom makes her audition with her little brother Randy at the local university for a summer theater production of The Wizard of Oz.

Julia and Randy get to be Munchkins, and Julia's summer changes. She makes friends with Olive, one of three little adults who are playing Munchkins along with the kids. And then Julia and Olive get chosen to play winged monkeys as well.

Down the street, Julia's neighbor Mrs. Chang, turns out to have experience making costumes. She wants to help with the production - if they'll let her be a winged monkey!

This book is full of the fun and energy of being in a show, with drama between actors and lessons learned and the difficulties of dealing with reviewers and fans. And Julia has a summer of growth. Maybe not on the outside, but on the inside, where it counts.