What are the smaller boys the littuns afraid of in lord of the flies?

The littluns fear "the beast," the most. The smaller children cry out in their sleep. Simon shows the reader that the dead parachutist, with his strings attached to the trees on Castle Rock, is the beast. Unfortunately, when he runs to tell the group, they murder him on the beach, while performing their chant with spears, in the rain and dark. The littluns continue to have nightmares, but are probably of missing home and fearful of the murder/s which have taken place.