page 69, chapter 4. "The boys chattered and danced. The twins continued to grin.“There was lashings of blood,” said Jack, laughing and shuddering,“you should have seen it!”“We’ll go hunting every day—”"
This moment shows Jacks character developing because he felt like a failure for most of the book before this, not being chief, not killing the pig, etc. After this he felt as if he had gained some power back and he accomplished a goal. I think Golding intend for Jack to represent the almost "evil" guy behind the scenes who is running everything but nobody realizes it. This moment is important for Jack because its a time where he inst really himself and he finally got "his first win" of the book.