There are several dead ends and alcoves featuring those heaps of moldy soil. (noted on map).
It seems the next possible way to go is the large hall to the north. Approaching the southeastern corner, Torin gets a better picture.
There seem to be three alcoves to the west, east and south and the southern, unlike most nearby, looks to be clean and tidy... relatively, at least.
The northern part of the hall gets even wider and there seems to be some more soil in the northwest corner and a way (or another alcove) further to the northeast, but Torin can't see from here.
There seems to be a gargoyle relief in the middle of the northern wall but Torin can't tell from this spot if it has a keyhole or not. There are no visible doors near the relief, though.
As Torin assesses the situation a faint echo of stone grating against stone is heard from the distance; much like the sound of the door he came in. It comes from the same generic direction but knowing full well the nature of the echo in subterranean cities the dwarf realises that it may have come from any point of the complex outside the door.
The noise died in the same time the door needed to open.
Venturing back to the three doors Torin can't see any changes-- the one he came in still open, the other two still closed.
He finds a dwarven inscription "Pantry" on the East wall and a shelflike indentation (about 2 feet high, 2 feet deep and 8 feet wide) on the South wall.
The northern alcoves reveal nothing of interest and the large hall ends here.
Torin takes a full search in this chambers. First of all he starts with the heaps of soil. After the heaps he will go to the northest wall and continues the searching backward to south.
OOC - please say me if Torin needs some sleeping or he reaches the wall with three doors.