This is not a ghost story. it is true. it happened to me. Afriend of mine owns an old house that was a stop on the underground railway before the civil war. I was visiting him, he was showing me an empty room that he was making into a bathroom. The door was shut, there were two people in that room, and I was looking right at him. I heard an odd sound behind me, looked down, and, a penny came rolling across the floor OUT OF A BLANK WALL!! I picked it up and asked, "Where did that come from?" he said, I dont know, it happens often. I have a big jar of them. To make matters even more spooky, it was an Indian Head penny. This is only one incident that took place there, but, it is the only one that I saw with my own eyes. He finally told me that a murder had been committed in the cellar.Absolutely true story.