In the novel "Lord of the Flies," Jack is a complex and dynamic character who undergoes significant changes over the course of the story. At the beginning of the novel, Jack is introduced as a charismatic and confident leader, who is chosen to be the head of the choir boys on the island. He is described as being tall and handsome, with a "great red blob of a birthmark" on his face that gives him a distinctive appearance.
Despite his initial charm and leadership abilities, Jack quickly becomes a negative influence on the group of boys. He is obsessed with hunting and violence, and he encourages the other boys to join him in his bloodthirsty pursuits. He is also prone to fits of anger and jealousy, and he often lashes out at those who disagree with him or defy his authority.
As the story progresses, Jack's descent into savagery becomes more and more pronounced. He becomes increasingly violent and ruthless, and he eventually abandons all pretense of civilized behavior. He leads the boys in the hunting and killing of pigs, and he becomes the leader of a group of boys who have abandoned all semblance of order and morality.
One of the most significant changes in Jack's character is his transformation from a leader to a tyrant. At the beginning of the novel, Jack is chosen as the leader of the choir boys because of his charisma and leadership abilities. However, as he becomes more power-hungry and violent, he becomes more of a dictator, ruling over the other boys with an iron fist and demanding complete obedience.
Despite his negative qualities, it is important to remember that Jack is a complex and multifaceted character. He is not simply a "villain" or a "monster," but rather a young boy who has been placed in an extraordinary and difficult situation. The violence and savagery that he displays can be seen as a product of the intense pressure and isolation that he and the other boys experience on the island.
Overall, Jack is a complex and dynamic character in "Lord of the Flies," whose actions and motivations change significantly over the course of the novel. He is a leader and a tyrant, a hunter and a killer, and his descent into savagery is a powerful and cautionary tale about the dangers of unchecked power and the fragile nature of civilized society.