Mungo the Elephant and Mr Thunderpants love playing jokes on each other and they love playing jokes on their friends. They hide clockwork teeth in Dawg's pants, put a whoopee cushion in Davey Duck's nest and sneezing powder in Mr Legg's hat. However, their friends don't find the jokes so funny, so they hatch a plan to teach Mungo and Mr Thunderpants a lesson.
Christopher Inns has worked in children's book design for the last twelve years. Chris is married, and has a 5-year-old son (who likes to cure his toys with his toy medical kit) and a 1-year-old daughter. Watching them play gives him ideas for some of his books.