Mrs. Piggle Wiggle by Betty MacDonald Accelerated Reader: Level: 5.2. Pts. 3. Take the Quiz! Book Description: Mrs. Piggle-Wiggle has been wildly popular with children and adults for over 50 years. Children adore her because she understands them--and because her upside-down house is always filled with the smell of freshly baked cookies, and her backyard with buried treasure. Grownups love her because her magical common sense solutions to children's problems succeed when their own cajoling and yelling don't. For the child who refuses to bathe, Mrs. Piggle-Wiggle recommends letting her be. Wait until the dirt on her body has accumulated to half an inch, then scatter radish seeds on her arms and head. When the plants start sprouting, the nonbather is guaranteed to change her mind about that bath.