Dark Brotherhood Sanctuary
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The Dark Brotherhood Sanctuary located in Cheydinhal is the headquarters of the Dark Brotherhood in Tamriel. The entrance is inside the Abandoned House with an alternate entrance through a nearby well. In order to gain entrance, the player must join the Dark Brotherhood, go to the door, and speak the password, "Sanguine my brother." This is not possible if the player has not completed Lucien Lachance's first quest. In order to gain access to the well's entrance, the player must complete the quest The Assassinated Man.
The Cheydinhal Sanctuary has three main areas. The first is the Sanctuary itself. This area contains a few tables, as well as Ocheeva and Vicente Valtieri's bedrooms. On one side there is the training room, with the usual targets, and on the other the living quarters which contain several beds as well as a chest for each character in the sanctuary (besides the player).
The in-game messages suggest that there are many Dark Brotherhood sanctuaries located throughout Tamriel, but Cheydinhal's is the only one the player may enter.
During the Purification quest, the player must kill all of the members of the sanctuary in the hopes of finding a traitor. The sanctuary will be empty for a time, however once the player begins to collect assignments during Whispers of Death, several members will appear.
[edit] Members
In addition there is a Dark Guardian and pet rat named Schemer who wander around the Sanctuary
