Fortunately or unfortunately, Luka's going to know exactly where he is when he goes through the door. The dust in the air is obvious from the moment he passes through the threshold, the space seemingly not even in the same building as the bedroom he'd just left. Shouldn't he have exited into a hallway?

Why was there a bit of an echo...?

Was this a concert hall?

Sure enough, the door has deposited him on the left side of the first stage he'd ever played on that sold out. Honestly, it looked like a place that had seen better days... stayed open, and then got worse. At least the brickwork would stand up for generations? But the balcony seating was probably only for people who had a death wish. The alcohol in the bar at the back was probably pure poison by this point too.

"Where are we?" Nine asks, a little distracted as she tries to figure out where a switch would be in this location. It was all open, so... was it just on a wall or something?

Though neither she nor Luka had found it yet: It was behind the bar.