1 - This is where you'll find yourself after entering the secret door back in Shadow Thieves' Guild 1. 2 - The torture chamber lies here. I didn't find anything significant to be done here, but you can ask about Aran Linvail and his whereabouts. You won't get any straight answers, however, so you'll have to keep looking. 3 - Scour the area and you'll find a secret door leading to area #4, which is Aran Linvail's personal chambers. 4 - Finally, after walking around for awhile looking for him, you'll encounter Aran Linvail here. He unfortunately wants you to complete some tasks for him first, before he will lead you to Imoen. If you accept, he'll give you a few trinkets and instruct you to investigate some shipments down by the docks with another Shadow Thief named Mook. Once complete, he'll give you a second task to head over to the Five Flagons Tavern in the Bridge District to seek out some traitors (they intend to defect to Bodhi's side). Once there, ascend to the second floor, and acquire their trust (I acted like I was applying to be accepted into Bodhi's ranks as well). Once the contact shows up, feel free to wipe them out and return to Aran for your reward. Lastly, Aran will ask that you exterminate the opposing guild (Bodhi's gang of vampires) down within the tombs of the Graveyard District. Head to Bodhi's Lair, stake as many vampires as you can, have a conversation with Bodhi, and then return for the last time to Linvail. He'll express his gratitude for your completed tasks and make true on his word by putting you on a boat headed for Brynnlaw, where you'll find Imoen's prison - the Asylum (Spellhold). 5 - Back here you'll talk with a Shadow Thief that intends to become a traitor and assassinate Aran Linvail. Another thief will overhear him and they'll fight it out. Once the traitor dies, grab a Ring of Lockpicks from his corpse.