Sacrifice of a Song

I'm in the gymnasium of a some sort of school, and it resembles my high school gym except that the walls have mirrors on them. I think they're double-sided, like the ones they use in investigation rooms. Anyway, there are a bunch of girls and guys with me and we're playing basketball when suddenly the lights flash on and off. From the corner of my eye, I see this girl, very pale, dressed in gray, and she's pointing at the girl next to me. She mimes something, gesturing wildly. Before I can figure out what she's trying to get across, she disappears and the lights return to normal. Only there is steam across all the mirrored walls, as if we had all been in a sauna. And that's when I wake up.

I woke up with the eerie feeling that I'd been in some sort of experimental facility, but you know, that might have been due to the book I was reading before I went to bed. Or even the show I was watching for several hours that evening. I keep telling myself this but I have to really stop staying up late reading/watching stuff if it's going to give me weird dreams. On the other hand, it's helpful because I actually have dreams to write on this thing instead of having to hit up my friends, haha.