Men visit a city. They watch aeroplanes departing and arriving at an airport. They go on board a ship and across a river. Finally they arrive at the building that is their destination. A man guides them to the world map room'. It seems they have an appointment there, although there is no description about the appointment. They see the books on the shelves and have some desultory conversation. Then they go to the courtyard and carry on the conversation. They reach a pond with a sunken ship. The guide starts to explain the ship's history. The book ends.'