Jule Ann is afraid to go outside because a mud puddle keeps jumping on her and getting her muddy. Then she has an idea about how to get rid of the mud puddle.
Looks at one of the architectural marvels of the Roman Empire, the bathhouse, which incorporated intricate systems for plumbing and heating, sophisticated vaulted ceilings, and a revolutionary new building material we now call concrete.
At first Claudia enjoys her new bathtub, which becomes in turn a fire engine, a floating hospital, and a spaceship, but then she grows tired of being clean and refuses to take a bath, no matter how dirty she gets.