The 1819 Vault at Dunsinane and the Stone of Bethel

One tablet was said to carry two lines, deciphered by a gentleman as a reference to sylphs carrying the writer to Bethel again. The letter-writer argued that Macbeth must have hidden the sacred stone at the bottom of his castle in troubled times, and said the stone had been shipped to London for study. Wikipedia notes the hill has a late prehistoric fort and no remains of the 11th century have been identified. No later report of the find is cited, and the story reads as a hoax or a piece of speculation.