The Dream of February 5-6

I can't actually put a face to the friend who was with me in this dream, but I think it was either Linnéa or Kit. And we were going to stay in this... I suppose it was something similar to a fraternity/sorority house but it was here at my uni. The difference between this place and a regular, Swedish hall of residency was quite obvious. The odd thing is that most of the place felt like it was underground. Odd corridors and rooms, twisting around themselves. Kind of like the trees that the Gummy Bears live in (for those who've seen that classic show!). It's difficult to describe in detail, but it just had the feel or a large underground shelter, all the corridors of it as small as possible. And it had that slightly damp smell of underground too.
It was clear that we were not in charge, that we were only guests or maybe initiates in whatever the organisation was. My neighbour, Carola, was there too and she had more respect than we did, but she was not one of the "top people".

At some point my friend needed to take a test and we were directed to a small table, in a room off the kitchen. We could hear the sounds from the dinner party in the kitchen area. A woman that I think was sort of a hybrid of a philosophy lecturer and an English lecturer I've had (both of them named Annika) and we were informed that under no circumstances whatsoever could our mobiles make any noise when she was talking - despite the fact that the noises from the rowdy party, her speech and the distance to us would've ensured that our phones could not bother them.
The odd thing was that the phones did not seem to be a problem for my friend's test. Neither was my presence there. Either way, she wrote her test and we talked to one of the "leaders" about leaving. And he said something about them having little kids in yellow raincoats stationed all the way back to where we actually lived and that we could not go there. We darted to a window - the first thing to suggest that we were actually not in a Gummy Bear-tree-type-underground-residency. Outside was this creepy, doll-like girl with huge eyes and a manic smile, wearing a yellow raincoat and she was staring at us. Naturally, it creeped us out. We were very frightened, but after a short discussion we reached the conclusion that he'd been lying and that they probably only had that one, creepy kid in a raincoat, and we decided to leave and go home.
After that I can't remember what happened. So I have no idea if we made it home or got killed by the creepy doll-kids. But I remember that we felt happy and confident about being right before we left.