Luther arched both brows, only slightly disbelieving. He didn't have any interest in fighting anybody. His size, maybe, made it seem like he was hostile when he wasn't, or like he wanted to intimidate when he didn't. Mostly he wanted to make sure these two- basically kids, when you got down to it- didn't get killed wandering too far away from everybody else.
He was only here to provide a little extra protection, assuming it even became necessary. Hopefully it wouldn't, but nobody seemed sure about what else might be lurking in the jungle around them.