The three face the judgment of World Controller Mustapha Mond, who acknowledges the flaws of this brave new world, but pronounces the loss of freedom and individuality a small price to pay for stability. Mond banishes Bernard and Helmholtz to the Falkland Islands and rules that John must stay in London.
When his two friends leave for their exile, John determines to make a retreat for himself in a remote, secluded lighthouse outside the city. There he tries to purify himself of civilization with ritual whippings and vomiting.
Drawn by the spectacle of his wild penances, reporters and crowds press in on John, who becomes a public curiosity — a kind of human animal in a zoo. When Lenina appears in the crowd, John furiously attacks her with the whip. John's frenzy inflames the crowd, and, in accordance with their social training, the violence turns into a sexual orgy, with John drawn in more or less unwillingly.
The next day, when John awakes from the effects of the soma, he realizes in horror what he has done. The novel closes on an image of John's body, hanging lifeless from a wooden beam in his lighthouse retreat.
