Sound Effect

The flies are back. They'd gone away for a bit, but that was just a temporary gambit.

Now they're definitely dying. When I kill them, they go "crunch."

Fly Update

It appears they arrive only at night. And I never find corpses, so my original presumption that they were dying may have been a tad hasty. Perhaps they are merely stupid, and incapable of flying properly.

They Multiply

My room is being invaded by dying flies.

I have no explanation for this.