The Fens are a most unusual family. Father and Mother Fen are rather ordinary, but their children? First, there's Mumbo, an elephant; Baby Panda, a giant panda bear, Koala, a koala (of course), and Pinchu and Panchu who are very, very small. When the Fens move into their new house, a curious neighbor drops in, and while the visit starts well enough, on spotting Mumbo, she faints. When she finally leaves, she makes it her job to make this gentle family public enemies. What will become of the Fens? Find out in this wonderful tale of this fantastic and fabulous family.