No longer funny

In a matter of minutes, the sky has turned almost jet black. From the tinted windows in the office, it looks like it’s at least ten o’clock at night. I keep getting up to check the window, see if it’s changed. Of course, we’re in the middle of the building, and on the fifth floor of seventeen (or is it 30? I’m never quite sure), so unless I go over to the window, I have no idea what’s really going on outside except for the darkness.