She sleeps. She eats. She scratches - and finds a hole. When Mothball discovers a new hole, it unexpectedly leads her to the local school.

The children learn that wombats love carrots and grass, while Mothball learns that lunch boxes contain very few carrots, that sports sheds can be a good place to have a nap, and that when you're brown and round, it's not a good idea to get too close to a ball...