7 DOOR IN THE WALL. One the north side of the corridor is a locked miniature metal door (4' high by 3' wide). In the south wall, there is a large hole, leading to Area J of the Rat Warrens.
The door is raised above the level of the corridor by about two feet, so opening it does not move the water. The passageway behind it is elevated at the same height and has a six foot ceiling, so it and Room 8 are dry.