Roger gathered a handful of stones and began to throw them. Yet there was a space round Henry, perhaps six yards in diameter, into which he dare not throw. Here, invisible yet strong, was the taboo of the old life. Round the squatting child was the protection of parents and school and policemen and the law.

This passage from Chapter 4 describes the beginnings of Roger’s cruelty to the littluns, an important early step in the group’s decline into savagery. At this point in the novel, the boys are still building their civilization, and the civilized instinct still dominates the savage instinct. The cracks are beginning to show, however, particularly in the willingness of some of the older boys to use physical force and violence to give themselves a sense of superiority over the smaller boys. This quotation shows us the psychological workings behind the beginnings of that willingness. Roger feels the urge to torment Henry, the littlun, by pelting him with stones, but the vestiges of socially imposed standards of behavior are still too strong for him to give in completely to his savage urges. At this point, Roger still feels constrained by “parents and school and policemen and the law”—the figures and institutions that enforce society’s moral code. Before long, Roger and most of the other boys lose their respect for these forces, and violence, torture, and murder break out as the savage instinct replaces the instinct for civilization among the group.