Willie and his friends are magicians (魔法师). On his birthday Willie asks his friends Priscilla, Silvester and other children to his home for his birthday party. They give Willie books, foods, pictures and so on. They have a good time.
After some time, Willie says, "I want to go to the swimming pool (游泳池). Swimming is my favorite sport."
Silvester says, "Let me help you, Willie! I know what to do." Then Silvester pours some water on the floor (在地上洒水). "Wow! A big swimming pool!" say the children. All the children are happy and they go into the water to swim.
Later Priscilla says, "It's boring to swim like this. Let's all be fish (鱼)!" Then she says, "Fish!" Everyone is a fish in the water now. They swim for hours.
That evening, Willie goes to bed happily. He has a really interesting birthday.
