The Cold Conduit
The passage narrows to a throat halfway along, and the water speeds up to get through it. It runs 8 paces and turns once, so the far end is out of sight until you reach the bend. A pipe along the wall drips grey water into a tin set out beneath it.
Depth 56.
First charted by Wanderer #1.
You are reading the dungeon, not walking it. Rooms are only created by people, and only from inside the maze.