Show don't explain use to tremendous effect for the mysterious compound. And the faux window realization is well executed. I willingly plunged into the mass suicide and felt exhilarated and silly as you pulled me back out.

I wonder if unexplained details could be also be employed for the narrator's inner monologue? The language here is like a psychologist describing a child at play. But I want to read a child describing the psychologist.

Nice work. I wonder what's in storage?