Atonement.

Overall, I think that all the major characters in the novel gain some sort of Atonement by the end of the novel. While I do not believe that each character receives the same amount of peace by the end of the story. I believe that if you look at the final part of the story, where Brione is receiving an almost peace of mind for her last novel, I believe that is the point at which she releases all that she has been carrying for all those years. I feel like that in itself yields more than any other scene in the novel and therefore puts her above the other characters in the level of atonement that she gains.