The Dark Maze (ダークメイズ) is a location on the 5th Floor of the house.
The Dark Maze is an entirely pitch black room, making it impossible to see without the Glowing Bottle. Viola must enter the Dark Maze to get the Jade Pipe for the person in the right cell on the 5th Floor. The Wristwatch is also located within this room, underneath a nightstand that is at the end of one of the halls, just before the opening with 11 statues placed messily within.
When the player enters the room with the Glowing Bottle, the room appears to have very narrow, dusty halls and many broken dressers placed throughout the maze.