They have a secret base, under Mournhold.
In The Elder Scrolls V: Skyrim, Lun means "Leech".It is part two of the Marked for Death shout. This word of power can be found in the Dark Brotherhood Sanctuary, meaning it is only achievable if you take the optional Dark Brotherhood quests.You can find more about the Dragon Shouts and Words of Power on the official Elder Scrolls Wiki.
it never ends idiot
If you are a member of the dark brotherhood you can talk to one of the members there about it once you have completed all of his missions.
If your a high enough level (somewhere around 20) you can get them from either the dark brotherhood or off of a creature in oblivion.
The player is recruited by Lucien Lachance.If the player murders an innocent NPC, he will will appear after the player next goes to sleep in the game.
The Dark Brotherhood Sanctuary is located in the Cheydinhal East Gate.
Dark Fissure is West of Vaermina's Shrine.
Redguards in The Elder Scrolls are a race of dark-skinned people, yes.
They are a criminal order of assassins, a split-off faction from the government sanctioned assassins guild, Morag Tong. They appear only when the Tribunal expansion is installed, and play a part in the beginning of the expansion's main quest.
There are no others you can acess other than the 1 in cheydinhal
Elder Scrolls III: Morrowind, and IV, Oblivion, are very similar. As well as that you might like Dark Souls.
If you're talking about Elder Scrolls IV: Oblivion, then you will get visited by the Wrath of Sithis at night, and no one will see him. Like other spirits, you have to use silver, daedric, or magic weapons to hurt him, and you can't go back into the sanctuary without being attacked until you kill him. In the Elder Scrolls V: Skyrim, there are no tenets, so you don't have to worry about that. You have 3 chances to get back in the DB, and if you break the tenets again you're permanently kicked out.