When the car dealer said put it on the slate, I’m sure this isn’t what they meant. If you ever go exploring the Arthurian trail in Ceredegion, Gwynedd expect a few obstacles to pulling that sword from the stone or finding the holy grail. Chances are the only demon you will have to fight is a Hillman Imp.

Urban explorer Gregory Rivolet ventured into the abandoned Gaewern Slate Mine only to find a subterranean breakers yard. Close on a hundred cars from the 1970s were hidden its depths.

The mine opened in 1836 and went out of business in the 1960s. Conditions are described as unstable with slate falling on Rivolet and his fellow explorers as they probed the tunnels.