I just became a you know what and went to Irkngthand to kill you know who. The quest says "Speak to Karliah". I think they are supposed to meet me here but wandering in and out of the dungeon and sleeping/waiting doesent make them appear.

Any ideas? :S

Solved. Played through the game many times but never seen this happen, they actually ran ahead of me past the elevator this time instead of waiting at the door.