Aherne Sutton Dark Heresy
Hole in the Wall
A typical bar in the Middle Hive of Sibellus, essentially a street bar with barrels outside and the bar itself is literally a hole in the wall. The only entrance to the back of the bar is over an hours walk away as collapsed masonary has long since blocked the doorway. For a fee the barkeep will let people climb over the bar to use the backroom for more discrete meetings.
The barkeep keeps his best stuff under the bar and if asked will produce it for an extortionate fee.