The GMI
Alright, assuming you can get some light, you enter the Gorgos Meterological Institute.
...
Your first impression is that this place has been deserted. Relatively recently. It's not at all clear how many people once lived or worked here. Anywhere between 3 and 30?
You enter into a small workspace with a cot in the corner. Each floor here is rather claustrophobic: small rooms, narrow hallways, all dominated by a central staircase that spirals up and down. Nothing else on this level, except the stairs.
Up or down? You hear a strange hissing sound from the darkness below. You see a faint blue glow up above.