Marin and Caedmon climb carefully down the iron rungs. The dust grows thicker, and the air mustier, as the two make their way to the bottom. Judging by the length of the climb, it's down beneath the ground floor when the vertical shaft finally ends, joining with three horizontal passages: two heading east and north, respectively, parallel to the very footings of the Watchtower; and one heading west... out from underneath the tower, towards the falls. The passages are not quite six feet in height and about three and a half feet in width, arched at the top, and Caedmon's shoulders almost touch the sloping surfaces if he stands at full height. There is a very faint breeze that causes Marin's torch to flicker and bob.