in lord of e flies, how were the three boys, simon, piggy and littlun death? And what is the purpose ofgolding not leaving their bodies behind?

All three of these boys are Golding's innocents. They represent wisdom/Christ Figure (Simon), Knowledge/vulnerability (Piggy) and fragility/meekness (birthmark boy). I think Golding's point is that boys no longer deserve any part of these boys. They have squandered something precious and are no longer allowed to desecrate them.