What are the hunters doing when they return from the hunt in lord of the flies chapter 4?

Jack's and his tribe first try to drive Ralph from his hiding place in the thicket by sending a boulder crashing into it. When this tactic fails Jack then tries to smoke Ralph out of his hiding place by lighting a fire. Ralph makes his way out of the opposite side of the thicket by surprising and stabbing a 'savage' who is on guard. Ralph runs for it and the savages spread out across the island signalling to each other. Ralph tries hiding again, this time in Simon's secret place but is spotted by another savage, who he attacks and stabs with his spear. The fire which Jack lit soon spread out of control and set fire to most of the island. Ralph ended up stumbling onto the beach, with Jack's tribe in hot pursuit.