Simply follow the main quest line in the Shivering Isles expansion and you will eventually join the court of madness as a Duke of Mania or Dementia. See the related link.
follow the story mode and it will bring you to the blades and the opportunity to join.
do you mean how to join a gild? if so what gild?
Hate to break it to you but umm I don't think there are any gates like that except in Oblivion.
Not really. Oblivion has a main plot that has to be followed. The events of this plot are part of Skyrim's background. In canon terms, the main character from Oblivion becomes Sheogorath, Daedric Prince of Madness (as portrayed in the Shivering Isles expansion), and indeed, the Sheogorath you meet in Skyrim will hint towards having witnessed the events of the Oblivion Crisis personally, as well as saying his power was given to him.
u have to join a theifs clan and u can buy lock picks
The best armor is Perfect Madness Armor (Heavy),and Perfect Amber Armor (Light).(Must rquire expansion pack Shivering Isles)
there is no unlocking the armor just be level 23 or up when you ask cutter to make the armor this is kevin2876 and i have GRAND MADNESS ARMOR FOR MY GUY and u need to be lvl 15 to get perfect madness trust me u do not lvl 23 and im lvl 19 with GRAND MADNESS ARMOR AND A RARE HELM THATS A QUEST HELM U GET FROM THIS ONE GOHST MYSTERY
many traders will sell some lesser effect scrolls, the mages guild is free to join and will provide you with many spells and scrolls and when you enter an oblivion gate many deadra will drop useful scrolls
You have to get the Shivering Isles expantion its a good upgrade. if you already have it after you beat the gatekeeper and go through the Gates of Madness you can go on the right road that leads to Dementa and the left leads to Crusible
There two "best" armor types in Shivering Isles. Perfect Amber is the best light armor, Perfect Madness is the best set of heavy armor.
1523
After you are sent to jail a dark elf will come and give you a letter, when you follow the instructions you will need to complete a challange the your in.