The world of horror is littered with unnerving locations, places that both draw from and have in turn seeped into the public imagination.

For many there is one place in particular that continues to fascinate like no other in the UK.

In last week’s episode, The Spaces that Linger, we journeyed to the grounds of Boleskine House on the banks of Loch Ness in the highlands of Scotland. Although the house has long been the subject of dark intrigue, it is best known for its association with author and occultist Aleister Crowley who made a failed attempt to conjure his Guardian Angel at the property.