

The rules stop being valid during and after the quest "The Purification". If you violate the rules a third time you will face the strongest version of the boss the next time you sleep, but you won't get in the Dark Brotherhood again since your expulsion is permanent.

You can violate the rules a second time and you will face a more powerful version of the same boss, again after going to sleep. Never kill a member of the Dark BrotherhoodĪfter being expelled you can join the Dark Brotherhood again by defeating a sort of mini-boss called "Wrath of Sithis" which will attack you when you go to sleep. Never steal from a member of the Dark Brotherhood Like every other guild, the Dark Brotherhood has some basic rules that you must follow from the moment you join if you don't want to be expelled. If you want to find a specific quest in this page, use the CTRL+F search function of your browser to type in the name of the quest preceeded by a " # " marker (like " # A Knife in the Dark"). Since the questlines "Thieves Guild" and "Dark Brotherhood" both deal with a lot of law-breaking business, including breaking the rules of some other Guilds, it's advisable to complete a full quest line at the time, and it's not a bad idea to leave the Thieves Guild and Dark Brotherhood for last.
