Chapter 6 is called “Beast from Air” because the parachute and body that drops down onto the island is mistaken by the twins for the beast. They describe it as furry, with wings, and “slinking behind trees” while it chases them (p. 100). The twins are terrified when they return to tell the other boys about the beast. By this point, the beast is present in all of their minds. They imagine it in every shadow. The twins’ incoherent description of the beast in this chapter just serves to increase the hysteria, and eventually leads to the boys’ doom.
Golding, William. Lord of the Flies. New York: Coward-McCann, 1962. Print.