I open the door and step inside. My work bag drops to the ground, and my fingers start loosening my tie. Like usual. Then I notice the envelope on the ground right in front of me. One of those thick brown ones, like what I use at work. With a strange, purple string wrapped around it. Not usual at all. I pick it up and pull slowly on the delicately tied knot. It releases, and I pull out a piece of paper. I read the title p...