The address was Building Seven in an old residential complex on the outskirts of the city. The customer's only note said:
When you arrive, don't knock. Knocking will get you killed.
I'd been delivering food for a month and had seen all kinds of bizarre delivery notes, but never anything like this. Still, I needed the money, and there wasn't much I wouldn't do for it.
I went there, and that's when I saw the truth about the world…