The Weeping Cistern

Standing water covers the floor to the depth of a finger, and it is perfectly still. You are in a chamber of some size: 2 paces one way and 3 paces the other. It turns a corner partway across, so that part of it cannot be seen from the door. Something small goes quiet when you enter, and stays quiet.

Depth 7.

You are reading the dungeon, not walking it. Rooms are only created by people, and only from inside the maze.