Oblivion Elders Scrolls Thieves Guild

So, by either beating Methredhel there, or by stealing if off her afterwards, you now hold Amantius's diary. You can head back to the garden and wait till midnight again, or you can shop around town and do some quests to waste some time. If you get back to the garden by 3AM, Armand may still be there and you can turn the diary in then. When you give Armand the diary, he will admit you to the Thieves Guild, and some new topics will appear. He will also tell you the three rules to the Thieves Guild: 1. Never steal from fellow Guild members. 2. Don't kill anyone on the job; you're a thief, not an assassin! 3. Don't steal from the poor; they're under the protection of the Gray Fox.

He'll also tell you a little about Harmonius Lex, an Imperial Officer that really has it out for the Gray Fox and the guild. He'll tell you about Doyen's, the eyes and ears of the Gray Fox (Armand is one, S'krivva is the other). He'll also say if you break any of the three Thieves Guild rules, you'll be booted from the Guild until you can pay a fine to a guild Doyen. Finally, he'll mention the guild's fences, which are the people that you'll be selling stolen loot to. Armand will tell you that Ongar is the first and only fence you can access in the beginning, and he lives in Bruma (to the North). If you let Methredhel turn in the diary, all is not lost. Return to Armand after a few nights (At midnight as always) and he'll give you one more chance. This time you need to steal a sword off Rohssan of the store A Fighting Chance, which is located in the Marketplace district. You can ask a beggar for directions as usual. Head there at night, sneak to the door and pick the lock. You'll have to head upstairs, still sneaking. Be prepared, because on the 2nd floor is a dog that may see you and let out a bark. Be quick, and head right and around the corner. You'll find an Easy locked chest, pick it and grab the sword. Hightail it out of there, and look for Armand at midnight again (Or if its before 3AM, you can just return to him the same night). You'll get accepted into the Thieves Guild.

You can't advance in the Thieves Guild by doing normal quests at first, you need to actually do a little independent thieving before you can do any of Armand's special guild quests. So, if you don't already have some goods you've cased off of people, get to work and start pick pocketing and looting houses! If you want to grab some quick items, Chorrol isn't far away.