The Dripping Walkway
The floor is slick with a fine green skin that shows every footprint and keeps none. From one end to the other is 4 paces, too narrow to pass anyone in. A pipe along the wall drips grey water into a tin set out beneath it.
Depth 35.
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.