© Chris AitchisonThe mysterious image captured by Chris Aitchison at Tantallon Castle in eastern Scotland.
The figure peers down silently from an upper floor of the ruins of a Scottish castle, wearing what looks like an outfit from the Middle Ages. Could this be a long-dead Scottish earl, or just a random, modern-day visitor?
The eerie image is captured in a photograph taken by tourist Christopher Aitchison in May 2008 at Tantallon Castle, which sits on a rocky outcrop along the Scottish coast, east of Edinburgh. The "person" appears to be wearing an old-style greenish ruff around the neck.
Aitchison insists he did not tamper with the image and cannot explain it.
"I was not aware of anyone, or anything, being present in my picture, only noticing the anomaly when I got home," Aitchison said. "Staff have verified that there were no sinister dummies in period costume or historical reenactments going on that day at the castle. I did not notice any nice old ladies wearing ruffs walking around the stairs!"