Pongwiffy is a very smelly witch of very dirty habits. But she is a happy witch - until the day the gruesome gang of goblins move in next door and make her life miserable. So she goes to live with her not-so-best friend, Sharkadder, who tries to find her a new slum and a much-needed familiar. All they can come up with is a hamster from Amsterdam called Hugo. What an embarrassment! But Hugo is really an amazing hamster with hidden strengths...