Cloven Stones

Cumming says "In Douglas Road, about one mile from Laxey, there is on the southern side of a little ravine, a small circle of twelve stones, one of which, six feet high, is remarkable as being cloven from top to bottom. The tradition is, that a Welsh Prince was here slain in an invasion of the island, and that these stones mark the place of his interment.
Mr Feltham mentions the discovery in the centre of the circle, of a stone sepulchral chest or kistvaen, and in the view which he has given of it as existing at the time of his visit, there is a clear indication of a coved roof of stones, forming an arched vault in the centre of the mound."