Cellar

The Cellar is a room in Gloomy Manor in the game Luigi's Mansion: Dark Moon. It is the final area explored in the mansion and can only be accessed from the elevator in the Lobby. It is also where Luigi fights the Grouchy Possessor and obtains the first Dark Moon piece.

History
During A-Boss: Confront the Source, E. Gadd sends Luigi to the Cellar after discovering the Dark Moon piece is hidden from down there. Luigi relenctanly goes to the Cellar where he fights the large spider queen. During the battle, Luigi discovers that a strange, white ghost has possessed the body of the spider queen and heads back in. Luigi manages to capture the Possessor ghost into the Poltergust 5000 and obtains the first Dark Moon piece.