"At the back of the high school, there was a gravel path. Me and my friend were walking along, looked up and saw a tall, dark silhouette figure. "It was solid black. It had distinct arms, legs and head, but no features.” Andy said a moment later it just disappeared.

When I met Rosemary Ellen Guiley, one of the leading experts on the paranormal today, I asked her about these shadow people. She told me she was working on a book that identified them as a category of creature called the Djinn.

People who fear supernatural demons in the night are more likely to experience the phenomenon again.