[Boy climbs like a mountain goat. Arthur is vaguely annoyed by how effortless it seems for the other man; but he's impressed, more, and bites his tongue to concentrate on getting up there. At Genji's warning, he gives a short huff of laughter.]

Reckon I'm past bein' careful by now. [He grunts, picking up the pace so he doesn't have to raise his voice quite as loudly. If they're going to be escape buddies, they may as well get better acquainted.] So what's your story, feller? Sure don't look like a miner or a Murfree to me.