Staff at an award-winning museum in County Durham are so concerned about strange nocturnal activity that they are calling in a ghostbuster.
The museum has a reputation for being haunted
Killhope, the North of England Lead Mining Museum, in Upper Weardale is already reputed to be home to ghosts.
Over the last two weeks there has been further mysterious activity in the former mine shop - a game of draughts which keeps moving about overnight.
Edgy staff have contacted a local paranormal expert to investigate.
Pauline James, information assistant at Killhope, said: "At first, we thought it was someone playing a prank, but we've eliminated that theory.
"Some staff are beginning to feel a little bit edgy about it all, so we've decided to call in a ghostbuster team led by Dean Maynard from Tyneside to do another of his investigations."
Last year Mr Maynard and two colleagues were due to spend the night at the museum in a bid to capture a ghostly presence on film.
However, a number of eerie goings-on, culminating in the sound of screaming, left them so scared they beat a hasty retreat in the small hours of the morning.