Legend has it that her true identity was an evil nine-tailed fox whose spirit is embedded in the hunk of lava, located in an area of Tochigi prefecture, near Tokyo, famous for its sulphurous hot springs. Its separation into two roughly equal parts, believed to have occurred within the past few days, has spooked online users who noted that, according to folklore, the stone continually spews poisonous gas – hence its name. While the stone was said to have been destroyed, and its spirit exorcised by a Buddhist monk who scattered its pieces across Japan, many Japanese prefer to believe that its home is on the slopes of Mount Nasu. Visitors to the area, a popular sightseeing spot, recoiled in horror at the weekend after witnesses posted photos of the fractured stone, a length of rope that had been secured around its circumference lying on the ground.