I stood on the bridge, in the darkness as the fog rolled in. The dense fog shrouded me, encapsulated me, until I could only see shadows. Then I saw something, in the distance, in the fog. It was a dark spot, its shape was continually changing as it moved closer to me. I could not focus on the dark shape, as it would disappear each time I tried. But out of the corner of my eye, I could see it was there, coming closer, mutating as it moved. My heart pounded as as I watched it. The closer it got, the more I could see its shape. At 10 yards, it was finally clear - it was a bicycle, with a rider, a person, not the ghost I thought it was. She stopped and spoke, then rode off into the distance, into the fog, into the darkness. Maybe she was a ghost?