Mrs Littlelegs and Sizzler - a dear little old lady and her dear little sausage dog - are a familiar sight in the town of Donnythewe. Here they come now. As usual Sizzler has a grin on his face like somebody who knows a secret but will not say what it is. Mrs Littlelegs is smiling cheerfully, but she is clutching her umbrella as if she means business. It looks as though they are setting out on another of their dizzy adventures.