An eerie image of a figure at a Scottish castle has experts spooked.
The picture, taken in May last year, shows a spectral figure in 15th century dress peering out of a barred window at Tantallon Castle in Fife.
No mannequins or costumed guides are used at the castle and photo experts have confirmed that no digital trickery was used.
Even ghost sceptic Professor Richard Wiseman admitted to being puzzled.
“It is certainly very curious,” he said. "We ran it by three photographic experts and they said it hadn’t been Photoshopped at all."
“I suppose it could be a visitor looking a little bit strange. Perhaps someone will come forward. Another possibility is an odd reflection of sunlight, but it does look very like a person. The explanation is not obvious.”
Tantallon Castle, a ruined fortress dating back to the 14th century, stands on a remote rocky headland near North Berwick on the East coast of Scotland. It was badly damaged in an attack by Oliver Cromwell’s forces in 1651.
Christopher Aitchison, who took the photo, said: “I was not aware of anyone, or anything, being present in my picture."