In chapter 2, the littlun with the mulberry-colored birthmark speaks up during an assembly. The littlun tells Piggy to ask Ralph what he is going to do about the "snake-thing." The littlun then refers to the enigmatic creature as a "beastie" and mentions that it is large and terrifying. Ralph and Jack respond by dismissing the littlun's fears and believe that he was simply having a nightmare. Ralph continually insists that there isn't a beastie before Jack grabs the conch to support Ralph's statement. Both characters do not believe that the littlun actually saw a creature and quickly dismiss the subject.
Ralph then addresses the need to create a signal fire so that passing ships will possibly rescue them. The boys then work together gathering firewood and use Piggy's glasses to spark the flames. Unfortunately, the fire erupts and spreads quickly throughout the forest full of dry, rotted wood, hence the title "Fire on the Mountain." The littlun with the mulberry-colored birthmark is lost in the burning forest and never seen again.