HAPLESS museum worker Natalie Edwards thought her head would roll after selling a visitor a real human skull.

Natalie, a worker at York Dungeon, thought the grisly exhibit was a fake and agreed to sell it for £30.

She was horrified when her blunder was pointed out and has begun a head hunt for the mystery buyer.

Bosses at the Dungeon congratulated Natalie on her initiative, but pointed out that the skull was not for sale.

"Basically if it's not nailed down it would appear Natalie will try and sell it," said display supervisor Eddie Saul.

The skull has been at the Dungeon since it opened in 1986 and was an important part of the sinister decor.

"The woman was so lovely and she wanted it for her son's Christmas present," said Natalie. "Apparently he collects human skulls.

"I just couldn't say no, so I asked £30 for it. I feel a bit daft now, especially after finding out it was worth considerably more than that."

The Dungeon contacted the woman's credit card company, who agreed to get a message to her through her bank.

"If she and her son are not willing to part with it, then we're hoping her son will agree to let us mount a temporary display of his entire collection," said Natalie.