In the 23rdCentury... Aldous Leonard is a "Dozener," an interstellar nomad, working passage on the city-sized ships that travel between the dozen Worlds of Man at close to the speed of light. Aldous works on the SS Gu Tian, a Chinese star freighter, stretching his life into the future through time dilation and stasis in pursuit of his goal: to see the dozen inhabited star systems. The Gu Tian carries much that the colonies...