The Pianist stood, and gestured for you to leave. Her manner did not suggest there was a choice in the matter.
"Good luck, gentlemen. I hope I'll be seeing you again very soon.".
The rest of the establishment looked unbearably dull after the intimate meeting room, the greys of the walls more dull, the stale smell of beer and mushrooms all the more unpleasant after the strange scents of the Pianist's refuge. Your two companions hurried out, clearly not planning on working with you or each other. Perhaps they were trying to curry favor with the Pianist. Perhaps they just wanted the money for themselves. Either way, their haste was understandable, if not beneficial.
The barkeep nodded as you exited, and the door locked itself behind you as you step out into the dark and fog. The fact that you are underground is apparent again, and the oddness of the now-fewer passersby hammers the point home. The brown walls and the grey lanes stretch out in front of you, and you feel the slight tugging of destiny.