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The setting isolates these boys in order to create a microcosm of a world without adults. The island is self-sustaining and perfect except for the boys who enter it. This perfection is physically scared by the boy's arrival. The island alludes to a Biblical Eden where paradise is spoiled because of the inherent evil inside people. Golding wants the reader to keep this in mind as the boys' society unravels and they cast themselves out of paradise.