The Ragged Flagon - Cistern

The Ragged Flagon Cistern is a location found in. It is located through a cupboard in The Ragged Flagon, just before the entrance leading to The Ratway Vaults. After entering through the above entrance, it can then also be accessed through a hidden entry under a small tomb next to the chapel. After using this entrance for the first time, it will be marked on the city map, to the immediate right of Riften's marker, as "Thieves Guild."

The Ragged Flagon Cistern is the Thieves Guild headquarters, and Brynjolf and other Guild members can often be located here throughout Thieves Guild questlines.

Services

 * There is also a room with a Master, Adept, Expert, and Apprentice chest. These are for practice, and the player character can lockpick these chests repeatedly to improve his/her lockpicking skill.

Bugs

 * In the training room, if the player tries to lockpick a chest while someone is in the room but fails the first attempt, the player will be scolded for attempting to unlock the chest and will have to restart the lockpicking process.
 * Entering the through the secret entrance in the chapel graveyard can (rarely) cause the game to crash. (unknown if this occurs on consoles)
 * On rare occasions the people inside will attack you as though you are trespassing, even after you have been accepted into the Thieves Guild.
 * Occasionally, if the player tries to exit the area through the ladder that leads up to the secret-entrance tomb, the tomb will close as soon as the player climbs up. Note that you can still fast travel from that location. (Seen on Xbox 360)