Wanting to see the world and unable to live with his uncle anymore, Bunyip Bluegum the koala sets out on his travels, taking only a walking stick. At about lunchtime, feeling more than slightly peckish, he meets Bill Barnacle the sailor and Sam Sawnoff the penguin who are eating a pudding. The pudding is a magic one which, no matter how much one eats it, always reforms into a whole pudding again. The pudding is called Albert, has thin arms and legs and is a bad-tempered, ill-mannered so-and-so...