Rogash studies the door for a long moment without touching it. He examines every inch of it, including the knob, hinges, and gap around the frame. Finally, after what seems an eternity to those watching, the dwarf puts his thick fingers on the knob, turns it, and pushes the door open.
There is a small landing on the other side, and a spiral staircase leads down farther into the depths of the city.
(Moving on...)
The belly of the city is eerily quiet as you descend the staircase into a long, winding corridor that finally ends at an open door. Beyond the door is a large, square room filled with rows of thick, granite-like columns about every ten feet. The ceiling is low, maybe 8'. On the opposite wall, in the opposite corner, is a closed door identical to the one you are looking through now.