An eerie image of a figure at a Scottish castle has got ghost experts spooked. The scary shot was unearthed during the biggest ever investigation into photographic evidence of ghosts.

The picture, taken in May last year, shows a spectral figure in fifteenth 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 skeptic 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."

"The figure appears to be in period costume, but we know 100 per cent that Tantallon Castle is not the sort of place that has dummies or costumed guides; they just don’t go in for that sort of thing."

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