The little girl never even thought about having a brother, and when she is told there is a baby on the way, she finds the wait very long. It is exciting when he arrives, but she soon finds he takes a lot of mummy's time. And everyone says, 'Aren't you lucky?' 'It took me a long time to get used to that baby.' All the problems are pictured in wonderfully busy watercolours, and when mum wishes she had a big girl to help with the baby, the little girl learns she has a role after all. Now everyone says, 'Isn't he lucky?'.