Ralph found this enormous stone buried in his garden a couple of years ago (as you do) and once uncovered it was Officially Approved by some archaeologists and put on the SMR. You can click through to some more detailed photos. He’s happy for you to arrange to go and see it.
Looking at the map, it’s very close to the famous Arthur’s Stone – just down the hill in fact, between there and the river. You can’t help thinking this could hold a clue to its mysterious story? (well at least in the strange alternative world of Rhiannon’s mind).