George Mackenzie was born in Dundee in 1636 and started off as someone who challenged the ignorance that saw so many persecuted as witches, and defended the Covenanters. But once his career as an advocate was established he no longer had any need to defend them, and he went on to make clear what it was he really thought. He spoke out against them and teamed up with John Graham of Claverhouse. Together they persecuted the Covenanters and earned for themselves the nicknames Bluidy Mackenzie and Bluidy Clavers because of the horrific ways they did it.

George died in 1691, but not before seeing Scotland embrace the religion he'd fought so hard to destroy. He was buried in Greyfriars Kirkyard, where many of his victims died.

Fast forward to December 1998. Normally the gates of Greyfriar's Kirkyard are shut at night, but on this occasion the BBC had crashed a van into them and left it sitting. A homeless man looking for shelter from the rain wandered in, and broke into an old tomb. Inside it was pitch black, and he fell through a hole in the floor. He wasn't hurt, just winded, and took a moment to gather himself back together. In that moment, he realised he wasn't lying on lumpy earth as he thought he was lying on a bed of corpses. The man ran out of the tomb screaming, cutting his head open on the tomb's entrance, terrifying another man who was out walking his dog. At the sight of the filthy, bloody man, the dog-walker began screaming too. The homeless man, thinking the dog-walker was screaming because something was coming out of the tomb behind him, screamed even louder and the pair of them and the dog ran off into the night.

This incident seems to have triggered a poltergeist (who may be the same one from the vaults). Since 1999 there have been over 400 reported attacks, 170 people have collapsed, a dead exorcist, blackouts, unexplained fires, cold spots, over and above the natural level of dead animals found, people having their fingers broken - two people have even been commited and their families insist it's because of the poltergeist. The more tours that go in, the stronger and more pissed off the poltergeist seems to get, and the attack on the Black Mausoleum in 2004 when two teenagers broke in and removed a skull which they then pretended to perform sex acts on before kicking it about like a football, probably hasn't helped.