Back in May 2009, Slough Observer reporters had fears of spirits watching them as they worked into the evening.

On May 22, 2009, Slough Observer reporter Mike Greenshields wrote: "Ghostly sightings are not what most people expect to face when going to the office, but for those of us brave enough to work at the Observer, it is part and parcel of the job."

Back then the Slough Observer had an office in Upton Court, which has since become Upton Grange School.

The building is the second oldest in Slough and steeped in history having been given to Merton Priory monks in 1156, before being given to the Crown in 1630.

It then passed from the Lascelles family to local printer Francies Groves, who died in 1986, at which point the owners of the Observer purchased the property.

Those working at the Observer had heard rumours of paranormal activity or themselves heard the sounds of footsteps in the empty office or felt a cold draft blow past them.

Staff decided that to put their minds at rest they would invite a number of experts on-site to conclude whether the office space was haunted or whether the 14th century building was just creaky and drafty.

First to visit was 43-year-old Nigel Townsend, a medium from Slough Spiritualist Church in Farm Lane, who immediately sensed a strong presence of spiritual activity as he entered the building.

He told the Observer: "A monk stands at the entrance to greet everyone who visits and there are spirits who walk up and down the staircase here."

He was unable to make any communication with the spirits but inside the editorial office, he said: "A maid from as early as the pagan times stays in this room and watches over the office.

"There were very happy times here and she has stayed on because of the good memories."

Mr Townsend told the Observer there was "strong spiritual energy" but "nothing to be alarmed about".

Further ghost hunts took place over a two-week period, with Southern Paranormal, a team of investigators armed with cameras, also taking to the office.

Ellias Kupfermann, architectural historian and location researcher for Southern Paranormal told the Observer ahead of the investigation: "This is a fascinating building with such a colourful past.

"I look forward to spending the night here to see what we might uncover."

Further research was then conducted by the Ghost Club, the oldest organisation in the world associated with psychical research.

The 12 investigations planned to use temperature gauges, night cameras and CCTV to find proof of the paranormal.

Monica Tandy, a member of the club established in 1862, said: "It will be very interesting to see what we might discover in such and old and beautiful building."

Both investigative teams conducted their research during the quiet hours of 9pm and 4am.

More on what happened during the ghost hunts next week on the Slough Observer!