Witch Marks
Allison Fearn, a Ph.D. of Archeology at the University of Leicester, reveals that these particular markings are usually found on places of worship or the doorframes of homes. But the act of painstakingly carving them into the stone walls of a cave is a product of a much deeper fear. The sheer quantity of the witch marks found inside the caves indicates that something strange was going on in Pembrokeshire.