"It's a bit like accounts I've read of Shadow People: those appear to be spiritual parasites of some kind, except they haven't figured out how to get inside the head of the person observing them, thus they appear as vaguely humanoid shadow figures. This place... either hasn't been expressed fully or was never intended to be more than what it is. Perhaps in due time, we shall discover more. Or our hosts will redecorate it," he says, leading the way, his hidden gaze turned to the floor, when he doesn't dart a glance backward.