There are many mice in the city. People in the city are worried(发愁的). Then a man comes. He says, "I can help you. Give me a bag of gold." "Sure," the people answer. The man plays magic music. All the mice walk behind him. There are no mice in the city. The man says, "Give me the gold, please." The people don't want to give him the gold. The man plays magic music again. All the children walk behind him. The people have to give him a bag of gold. The children come home.