On a certain Thursday morning in October, I discovered something unusual as I was standing at the sink. A swift, unaccountable motion caught my attention in the mirror as I was shaving. More specifically, the movement came from something reflected behind me. Although I was alone in my apartment, I paused and leaned forward. I noticed the vintage mirror in the reflection, which was at the foot of the large bed. The slightly upward angle showed the overhead light in my bedroom. I turned around, staring at the old mirror, then shrugged, deciding that the movement effect must be a pure illusion.