I just finished Diplomatic Immunity and was told to find somebody named Esbern and ask Brynjolf about him in Riften, after spending about another twenty hours doing other quests I decided to continue with the main story, but noticed I have no active main story quest in my journal. So I grabbed my Skyrim guide book and it told me to talk to Brynjolf in Riften, I travelled to Riften and the only options I had when talking to Brynjolf were to do his pickpocket task or leave him alone. I gave the game the benefit of the doubt thinking after completing his pickpocket task I could ask about Esber, well no, he asked me to join The Thieves Guild, so I did, but STILL can't ask him about Esbern, I even scoured all of Windhelm looking for Esbern and he's not there. What's happening? Is my game broken?? Please help.