1. In chapter 4, Roger spots several littluns playing in the sand on the beach and begins to throw stones in their direction. Interestingly, Roger purposely aims to miss. Golding writes,
"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. Roger’s arm was conditioned by a civilization that knew nothing of him and was in ruins" (87).
At this point in the novel, the boys have not completely descended into savagery and are still heavily influenced by civilization. Essentially, Roger aims to miss because he is "conditioned" by society to not throw stones at other people, because it is wrong. As the novel progresses, the boys become increasingly savage and unapologetically satisfy their primitive desires.
2. Later on, Jack takes a significant step towards becoming a complete "savage" by painting his face. Golding writes,
"Beside the pool his sinewy body held up a mask that drew their eyes and appalled them. He began to dance and his laughter became a bloodthirsty snarling. He capered toward Bill, and the mask was a thing on its own, behind which Jack hid, liberated from shame and self-consciousness" (89).
The mask allows Jack and the other hunters to feel unashamed of their actions as they begin acting like brutal savages. The terrible sight of the mask correlates with the barbaric behavior of Jack and his hunters. With the inception of the painted masks, the boys rapidly descend into savagery.
3. Towards the end of chapter 9, Jack and his hunters work themselves into a frenzy as a tropical storm hits the island. The boys mistake Simon for the beast and brutally attack him as he crawls onto the beach. Golding writes,
"The sticks fell and the mouth of the new circle crunched and screamed. The beast was on its knees in the center, its arms folded over its face. It was crying out against the abominable noise something about a body on the hill. The beast struggled forward, broke the ring and fell over the steep edge of the rock to the sand by the water. At once the crowd surged after it, poured down the rock, leapt on to the beast, screamed, struck, bit, tore. There were no words, and no movements but the tearing of teeth and claws" (222).
The brutal nature of Simon's death signifies the loss of civility on the island and illustrates the point of no return. The boys have completely descended into savagery by murdering Simon. This scene depicts the savage nature and inherent wickedness of each boy on the island, which supports the theme of savagery throughout the novel.