Day 2 - The Swarm

Today's challenge: "They watched the destruction from the twentieth floor, as the city lights went out one by one."

I began this one by wondering why the lights were going out. At first, I assumed the darkness was a result of the destruction, like from a fire or volcano. Then I realized it might be more interesting if maybe the lights were attracting unwanted visitors and the only way to avoid destruction was to turn them off. I hope those people up on the twentieth floor balcony figure that out pretty soon!