The next morning, the three children discuss the day's events. The eldest child, gong keke, is six years old, and the youngest, gong gong qiyu, is ten. The oldest child tells his mother that he and his brother, gong yimo, have become famous because of the stories they tell each other. The story of the invention of the airplane, which took people to the air, is one of the most famous stories of all time. The three children wonder what happened to the invention, and how it can be used from so far away. The mother tells them that they cannot tell their father about it, but that she will take them to the world they are talking about. The youngest child asks his mother if she can stay with him for the night, and she agrees. She tells him that what his father talks about is more interesting than what his mother talks about, for example, when she talks about geography, she would discuss the local diet, customs, and something like that.