How does Brave New World end?
After the riot at the hospital, Bernard, Helmholtz, and John are brought before Mustapha Mond, the World Controller for Western Europe. Mond reveals he has read the banned literature and philosophy that inform his own understanding of what the World State has sacrificed for stability, but he defends the caste system and social conditioning as necessary trade-offs for happiness and peace. Bernard begs desperately not to be exiled, but Helmholtz accepts his sentence readily, choosing the Falkland Islands, which Mond notes is actually a reward — a place where the most interesting, individualistic nonconformists in the world have been sent, free to think and create. John argues passionately against Mond's utilitarian vision, insisting on the value of suffering, poetry, God, and freedom; Mond distills John's position as demanding "the right to be unhappy." John asks to be exiled to the islands too, but Mond refuses, wanting to observe what becomes of him.
John withdraws from society entirely, retreating to an abandoned lighthouse near the village of Puttenham. There he attempts to live an ascetic, purifying existence — fasting, praying, and whipping himself to atone for his participation in the World State's corrupting influence and his lingering desire for Lenina. His self-punishment is discovered by the public; reporters and sightseers descend on him, and a documentary filmmaker secretly films his self-flagellation. Once broadcast, the footage turns him into a sensation, and swarms of helicopters bring crowds demanding he repeat the spectacle for their entertainment.
Among the crowd one evening, a woman John recognizes as Lenina arrives. Overcome by his conflicting desire and self-loathing, he attacks her with his whip, then turns the whip on himself in a frenzy. The onlooking crowd, aroused by the violence, dissolves into a soma-fueled orgy in which John, in his frenzy, participates. He wakes the next morning consumed by shame and horror at what he has done.
That evening, as news of the orgy spreads and more helicopters arrive to gawk at him again, the new arrivals find John dead: he has hanged himself in the lighthouse. His suicide closes the novel, framing his inability to reconcile his Shakespearean, individualistic values with either the brutality of the Reservation or the shallow, engineered contentment of the World State — leaving Bernard and Helmholtz exiled to the islands and Mond's social order unchanged and unchallenged.
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