Archeologists have unearthed a dozen incised stone slates from Nevern Castle’s 12th century cut-stone entranceway. Several were carved with star designs. They might be decoration, they might be spiritual protection, who knows. The funny thing is that I immediately thought about the incised star carvings in Lovecraft as protection against the Old Ones.
And no, I don’t think Nevern Castle was fighting off Cthulhu. I’m just a little weird. ;>