Beelzebub:

Beelzebub, or "Lord of the Flies" is an important character to the development of the plot in this novel. Although it's not a material character it plays a role in the minds of each of the boys. Believed to be real, this beast is the source of manipulation that allows jack to take control. the fear that this beast plunged into the "littluns" spread through the tribe and made them susceptable to Jacks torment, allowing them to be easily seperated from Ralphs morally correct visions of the way things should be run.