Maurice is one of the older boys who is in Jack's tribe. He is a boy who, in the beginning, isn't bad. In chapter 4, Maurice "...still felt the unease of wrongdoing," as he and Roger kick over the little boys' sandcastles. He has not become as savage as Roger or Jack yet. Earlier he had actually been helpful to the group in gathering wood, making suggestions about the signal fire, and amusing the little boys. By chapter 10, he has gone completely over to Jack's savage side when he helps Jack and the others steal Piggy's glasses, thus stealing fire and power.
Maurice is the second-largest choir boy, behind Jack. At the beginning of the novel, he is an affable and funny sort of boy, but as the novel goes on, he becomes more savage and destructive. For example, towards the beginning of the book, he kicks over the sand castles built by the smaller boys. He still feels some guilt about his actions at this point. As Golding writes, "Now, though there was no parent to let fall a heavy hand, Maurice still felt the unease of wrongdoing."
However, Maurice, who often makes jokes to make the smaller boys laugh, becomes more and more savage under Jack's tutelage. Jack smears blood all over Maurice after Jack kills a pig, and then Maurice becomes one of the hunters in Jack's camp. Maurice goes on raids of Ralph's camp with Jack, and it's clear that Maurice is happy on the island and does not particularly want to be rescued; he wants to live a life of complete savagery.
Maurice is actually an important character to watch throughout the course of the novel because he really parlays the idea and centralization of the savage theme very well. You see his character develop, aggressively, the temptations, and the reality of what happens when a person is taken over and succumbed by evil. I tell my class that we all have good, as well as evil inside of us, but it's the people that let the evil get to them and take them over whom turn into savages and beasts. Maurice is a perfect character to talk about the one theme of savagery throughout the course of the novel.
I miss Piggy :,-(