From the Aboriginal people of Australia, to the Samoans of the South Pacific to the Aztecs in Mesoamerica, nearly every culture in the world has a petroglyph or marking of spirals. Though they have a variety of meanings, they are all present. So it was little surprise for explorers to find similar markings scrawled on the walls of a small cave along the coast of Ireland. However, upon further investigation, the markings hidden beneath the rubble of a collapsed ceremonial shrine were just a portion of a much larger symbol that had never before been seen especially coming from the Celtic culture generally known to have inhabited the area.
Typically, spiralled symbols found previously in the area are comprised of curved lines forming a triskelion. The sharply geometric spirals of this symbol are strange and out of place. They coalesce to form a graphic representation of a creature resembelling a cephalopod or perhaps the face of a long dead God. Perhaps both.
When observing the massive petroglyph witnesses reported a general unease in it's presence. Shortly after, nearly all members of the discovering party exhibited symptoms of nausea and vertigo. One member reported no effects at the time but was noted to have been particularly enthrawled. Later that evening he was discovered nude, kneeling in front of the image, knees bloodied from the sharp debris of the shrine staring vacantly at the central spiral. Friends of the man claim that he no longer seems to be the man who entered the cave.
Though no additional ill effects of the incident have been reported, the other expedition members refuse to return to the site.