Choose your own adventure!

Nothing special. Concrete floor. Unplastered brick walls. About 3 x 4 m. You can reach the ceiling when you stand on your toes; it seems to be concrete as well. There is a fixture for a strip light, but the tubes are gone. The door seems to be a metal fire door with the handle removed. A little bit of light seeps into the room through the gap under the door, the hole where the handle should be, and four little ventilation grilles in one of the walls.
About one third of the room is taken up by a heap of cardboard boxes that look like the remnants of an online shopping spree.