"I'm seeing singleton guards every couple of yards or so along the catwalks," murmurs Ellen, her voice dropping as she gets into more heavily guarded territory. "Tin shack overlooking the railroad cars and the first few buildings, the big ones built into the western wall of the gorge. Pretty sure I'm seeing slave pens up ahead on the right. You don't forget that smell...."

She trails off into silence, and then says, very quietly, "Oh God."