At the end of chapter ten, Jack and several savages attack Ralph's tribe in the middle of the night and end up stealing Piggy's glasses. Jack and his savages plan on using Piggy's glasses to light a fire so that they can cook their pig meat. In chapter eleven, Ralph, Piggy, and Samneric decide to take the conch with them and demand that Jack return Piggy's glasses and obey the conch. Piggy then takes the conch and elaborates on what he will tell Jack when they arrive at the camp on the opposite end of the island. Piggy says,
"Look, I’m goin’ to say, you’re stronger than I am and you haven’t got asthma. You can see, I’m goin’ to say, and with both eyes. But I don’t ask for my glasses back, not as a favor. I don’t ask you to be a sport, I’ll say, not because you’re strong, but because what’s right’s right. Give me my glasses, I’m going to say—you got to!" (Golding, 246).
Piggy is useless without his glasses and cannot see. He is also fed up with Jack's disobedience and hostile personality. Unfortunately, when Piggy travels to the opposite end of the island and addresses Jack, the savages refuse to listen and Roger ends up rolling a massive boulder towards him. The boulder strikes Piggy and kills him instantly. The conch is also destroyed, which indicates that civility is completely lost on the island.