The northern end of the basement chamber is uninhabited. It continues what Nathros judges to be the full length of the building above, but no further. Within a few steps from the tunnel entrance, the outline of the trapdoor above becomes more than a mere suggestion. A set of grooves are cut into the adjacent wall, presumably as hand or footholds.

A bit beyond that another interesting feature appears in the basement wall. A tunnel, similar to the one from the mill pit to this room, seems to connect this room to somewhere else. Torchlight penetrates only a few feet into the tunnel.