Designed for building reader confidence, "Animal Crackers" are stories based on animals which feature easy-read type with half illustrations and half text. In this tale, William the wisest worm in Wiggleton saves the day when the World Worm Charming Competition threatens the worm population.Designed for building reader confidence, "Animal Crackers" are stories based on animals which feature easy-read type with half illustrations and half text. In this tale, William the wisest worm in Wiggleton saves the day when the World Worm Charming Competition threatens the worm population.