In certain lights that mark on the wall seems actually to project from the wall. Nor is it entirely circular. I cannot be sure, but it seems to cast a perceptible shadow, suggesting that if I ran my finger down that strip of the wall it would, at a certain point, mount and descend a small tumulus, a smooth tumulus like those barrows on the South Downs which are, they say, either tombs or camps. Of the two I should prefer them to be tombs, desiring melancholy like most English people, and finding it natural at the end of a walk to think of the bones stretched beneath the turf.... There must be some book about it.