Mute

In one  part of the book Three Day Road, Xavier talks about how Elijah has become more popular within their battalion because of his marksmanship. Xavier explains how Elijah talks about his "latest exploits" and I believe that Xavier feels that Elijah is being almost egotistical. Xavier mentions how he taught Elijah everything he knows, but he doesn't tell anybody. I think a lot of people feel that they can't voice their thoughts and that could cause a lot of problems with confidence. I know when I don't speak my mind I really regret it, whether it be two minutes later or the next day. I know Xavier doesn't speak english very well but he could've said something to Elijah if he was feeling "invisible". I feel that, eventually, Xavier will have held back many emotions and do something drastic. Holding in these emotions and words can make anybody do stupid things.
On the other side of things, Elijah, I feel, will have let this "fame" get to his head and he will become someone he is not. What that is, I have no clue. At the beginning of the book, before the war, Xavier and Elijah went hunting together with Xavier acting as teacher to Elijah. Elijah may have felt that now that they were at the war it as his time for glory. At first it may have been harmless, but I believe that it will escalate into something much more.