4th

the kid goes and tells his crew that he saw a monster
jack yells at him saying that simon is a coward
and tells the group that there is no such thing as a monster
so he goes to the cave himself in search of the monster
2 min. later he runs out screeming saying there really is a monster
later that day he goes to ralph camp to get some fire
and tells them there is a monster on the island
all the kids become scared and no one wants to guard the fire
time past and some of ralph crew member comes to ralphs camp
telling them to give up the survial knife some of ralphs member betrays
ralph and joins jacks group
ralph refuses and later that night jack and his whole crew attacks ralphs camp
stealing the survial knife during the atttack piggy's glasses gets broken
leaving him hard to see
later that day simon goes to jacks camp asking where is the monster's cave is
while jack and his hunters hunted a pig and jack cuts the pigs head off
saying its a gift for the monster in this scene you can see how the kids have changed
they have become brutal and cruel
jack sticks the pig head on a stick which was left in front of the cave

flies come near the pig head making maggots and rottonning it
which eventually becomes what is know as the Lord of the Flies
(which is never mention in the book but whatever)