There’s a cave in England where, during the last ice age, ancient people carved images of their world into the walls. Those renderings of bison, birds and reindeer are the only known examples of ice age rock art in Britain. But those same caves, Creswell Crags, were also the site of a more recent form of rock carving: witches’ marks.
A pair of “enthusiasts” from the U.K. underground-exploration group Subterranea Britannica spotted the marks during a cave tour.
“These witch marks were in plain sight all the time,” John Charlesworth, tour leader at the time of the discovery, said in a statement. “After 17 years at Creswell Crags, it makes me wonder what else it has to surprise us.”
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