Once there was a boy called Willy. He had lots of pets and a grown-up sister. Willy's sister was so grown-up that she was getting married, and Willy was going to the wedding. "Shall I bring my pets to the wedding?" said Willy. "No," said Willy's father. "No," said Willy's mother. "No," said Willy's grown-up sister. "Better not, old chap," said Bruce, who was going to marry Willy's sister. "Your pets might not like it." Despite Willy's attempt to keep his beloved pets from coming to his sister's wedding, they somehow manage to find a way into the church, and even the reception afterwards, with disastrous results! This is a charming, hilarious, and beautifully illustrated story from the author of the perennial children's classics The Tiger Who Came to Tea and Mog the Forgetful Cat.