The dwarfish woman takes a look at the drink, not quite knowing what it is. Whether out of politeness or curiosity, she accepts it and follows Shark out to the back.
The troll standing in front of the backstage door is very close to 9 feet tall, if not taller. His expression betrays he won't put up for any funny business, but there is no anger nor hatred in his face. He has probably been asked a dozen times tonight to let someone go backstage, but it looks like he's refused thirteen times already.
At the mention on Karl's name, however, the bouncer looks back at the bar and before you have time to turn your head he says "Straight ahead, first on your left."
You cross the doorway and see a poorly lit, long corridor. You head for the first door on the left, miss Cooper on your heals when the troll asks you, right before closing the backstage door, "Expecting other people?"
The first room on the left is a table with wooden chairs. There is a soft light glowing from a single lightbulb right over the table. The writing on the walls must surely be magical because the silence is deafening in the room, despite the noise outside of it.