Act 1: In the Beginning. In Eden, Adam discovers a dead fawn; he and Eve now understand that death must come to them, but Adam is also bored by the idea of eternal life. Adam disposes of the fawn, and the Serpent awakens and tells Eve that birth can overcome Death. She also tells Eve of Lilith, who gave birth to Adam and Eve by tearing herself apart, and that it takes two to give birth. Adam leaves and the Serpent tells Eve of the great secret of love and birth.

Several centuries later, in Mesopotamia, Adam is digging and Eve spinning. Cain enters and taunts Adam; Adam replies that Cain murdered his brother. Cain wants Eve to create more men so he can fight them. When Cain claims that he is a higher thing than man, Eve says he is simply Anti-Man. Cain wants martial glory and activity. Eve regards Lua, Cain’s wife, and her daughter as good-for-nothing. Eve worries that already her grandchildren are dying before they learned to live, and she thinks there must be something better than digging, spinning, and killing.

Act 2: The Gospel of the Brothers Barnabas. After World War I, the brothers Barnabas discuss their theory of Creative Evolution and their belief that for humans to develop completely they need to live at least three hundred years; they believe that nature will work on the imagination and will accomplish this result. The brothers are joined by Franklyn’s daughter and a young clergyman, and the parlormaid says that if she were to live several hundred years, she would hesitate to marry her fiancé, the cook.

The brothers are visited by two politicians who think that the brothers have a scheme for winning the next election. They demonstrate their political stupidity and lose interest but still wish to exploit the theory. Haslam and Savvy are told that anyone might be the one to make this “evolutionary leap” yet they have no idea that it is to happen. Haslam laughs at this.

Act 3: The Thing Happens. Burge-Lubin, the president of the British Islands in 2170, wants Barnabas to attend a film on a system for breathing under water. The state is really run by a wise Chinaman named Confucius. Barnabas sees the film of high officials who drowned over the last several centuries and reports that four people from the past are the present archbishop of York. He turns out to...