- This final quest is only available after you have completed all the special Thieves Quests for Whiterun, Markarth, Windhelm and Solitude. These quest are only available after you do 5 jobs in each respective hold for either Vex or Delvin. Talk with Delvin after you complete the fifth job or the hold to get the special quest for the area.
A good trick here is to save before asking for a job. This allows you to try for a different city and focus your efforts toward one at a time. It will also ensure you do not start the one bugged quest.
Be aware that taking a job for Riften will not count toward the total of jobs you need to complete for this quest.
If you have the Dragonborn DLC, the Bedlam Job can send you to Raven Rock but it is bugged and cannot be completed. The Fishing Job for Raven Rock can be completed but do not count toward any reputation quest.
- Silver Lining - Markarth
- The Dainty Sload - Solitude
- Imitation Amnesty - Whiterun
- Summerset Shadows - Windhelm
Completing the jobs
Make your way back to The Ragged Flagon. You will want to find and talk with Brynjolf. He will initiate this quest with you. He will ask you to enter the Ragged Flagon Cistern. There the ceremony will take place. Once it has, you will be named Guild Master. Talk with Brynjolf after.
Brynjolf will give you the Tribute Chest Key and the Amulet of Articulation. This opens the chest nearby the Guildmaster's desk. The other Thieves will periodically put random gems and other items in there for you to take.
You will also be prompted to talk with Tonilia. She will award you with the Guild Master's Armor Set. It is a much improved version of the Thieves' Guild Armor Set. This will complete the Thieves' Guild quest line.