A few years ago, I visited Osgoode Hall in the late afternoon to use their library in order to search for a patent. However, I did not find what I was looking for so instead I wandered around the place and almost got lost. When I returned back to the library, the lights were turned off and it was dark and all I could see was only the distant door on the other (south) side of the library that was lit by the hallway light. I was at the north door of the library and I had to cross the library to get to the south door in order to find my way out by the way that I came into the building. Thus, I had to cross the dark library. While being somewhere in the middle of the library, I remember hearing footsteps coming towards me from the windows on my right (west side). I looked and it felt like there was someone there looking at me. I thought that I saw someone in the dark there. When I called out "hello" the footsteps suddenly stopped and the person seemed to have disappeared into thin air. I quickly ran to exit the library.