Holidays are supposed to be fun, but a week in a holiday camp with Mrs Bayleaf? Torture! Out of desperation, Katie seeks refuge in the Kids' Klub, where she meets a particularly irritating little madam called Antonia who can't stop bragging about how her family win all the competitions. Katie would love to wipe the smile off Antonia's face. Perhaps Katie's family, and even Mrs Bayleaf, might come in useful after all . . . Well, there's nothing wrong with a bit of healthy competition, is there?