Have you ever wondered what ghosts sound like?

In the early 1980s,

Vic Tandy was working for Warwick Labs at Coventry University in the UK,

where he designed medical equipment.

The building Tandy worked in was old, dating back to the 14th century, and there were rumors

among the staff that it was haunted. People visited claimed to have experienced paranormal

events.

Tandy figured these experiences were related to the constant sound of life support systems

and other medical equipment that were operating on site.

But one morning Tandy arrived at the office early.

As the cleaning lady was leaving,

Tandy noticed she looked terrified.

The equipment had been turned on,

but maybe the sound of pressure hoses or local stray cat spook dirt.

But as the day went on, Tandy noticed other odd events.

Several office workers complained of feeling strange.

They all describe the same symptoms, anxiety, feeling

depressed, cold shivers. That night, Tandy was working late when he also started to feel

strange.

The hairs on the back of his neck stood up.

He broke into a cold sweat and felt a sudden overwhelming sense of dread.

His heart started to race and he had this very specific feeling that he was being

...