On the Welsh island of Anglesey (Ynys Môn) stands a tall hill named “the Witch”, or Y Gwrach. The hill was a holy site to pre-Roman druidic cults, but since then has become a popular destination for hiking by locals and outsiders alike.
In the 1960s, the sleepy village of Cwmmawr (Cumar in English), lying in the shadow of Y Gwrach, was home to a string of horrific deaths that shocked not only the whole island, but the rest of Britain.




