Eerie noises and creepy figures in mirrors have led them to believe something or someone is haunting the pub and they wanted Nik to find out who.

Assistant manager Amanda Richards said: "I bumped into someone in the function room behind the bar and I often hear banging and someone walking up and down in there.

"I'm not bothered about it. If they were going to do anything, they would have done it by now."

Footsteps and banging in the upstairs function room often echo through the ground floor bar after closing time, and the sounds of barrels rolling in the cellar when nobody is down there are common.

Even the main bar is not safe from the wanderings of apparitions – a white figure has been seen in a mirror on a number of occasions.

Amanda and barmaid Heather Broadley visited Grantham Library to research into the building's history, and unearthed a few disturbing facts – the building was home to a family of surgeons in the late 1800s and early 1900s.

Heather said: "We spent a couple of hours down the library looking through record books and addresses and stuff.

"We're hoping to incorporate it into Halloween night. We might put up a display on the wall of all the building's history."

Nik is eager to identify the ghoulish presence and is appealing to the Journal's readers to come forward with any information about the building's past.

Have you experienced something unexplained in your place of work or at home? Do you know anything about the Playhouse's past? Help us to unearth all of Grantham's ghosts. Click here to e-mail us.