Jill Riddick

The young inventors Dick and Jenny Brewster, build their own 'Hoverbug' and hope to win the race which has been organised for home-made Hovercraft, but their arch rivals, Charlie and Sydney, bend the rules by enlisting professional help and by employing devious means to sabotage the Hoverbug.

Jennifer Corner is a rather scatterbrained middle-class housewife. Her husband Henry is a school art teacher, and they have three children, Henry, Robin and Trudi.