Silvertip Mountain but what's inside you?

once again he'd fished for an answer, a real answer, and he'd come up with nothing. irritation flicks over his face but it's impossible to see in the dark. someone knowing more about him than he did about them, it'd always grated on him.
not so much a pack, he considers. more like a job. he stops and runs his hand over the smooth rock. a draft picks up, bringing the smell of stale air and bats back to him. and like i mentioned, i'm mainly looking for my uh, sister. he turns to ridgeback. the meagre light shades his face.
his forehead, brows, all tense and wrinkled, a tooth snagging on the side of his lip, the textbook expression of a man deep in thought, tortured and conflicted by his own mental loops. he sighs. i'm worried about her. just up and left one day. haven't seen her in months.