how and why do the boys make fire

In Chapter Two, the boys realize the necessity of building a signal fire. This fire may draw the attention of a plane or passing ship, and in turn, help facilitate their rescue.

After gathering the needed wood, the boys realize that they don't actually know how to start a fire. Jack recommends using Piggy's glasses, which he abruptly snatches from his face. The glasses do work, and the fire is started, but it quickly dies out. Keeping the fire burning will be a challenge for the boys throughout the novel.