At the end of "Lord of the Flies", what three boys do not make it off the island?

1) the littlun with the "mulberry-coloured birthmark", who died at the end of chapter two ("Fire on the Mountain")

2) Simon, who is killed by the rest of the boys upon his return from the top of the mountain, where he had just realized that the "beast" they had seen was a dead paratrooper

3) Piggy, who is killed when Roger drops a boulder on him and he falls into the sea