The amount of light was enough to see by, but still left dark areas behind the the stone arches and pillars that supported the roof structure. It was made almost entirely from stone except for the glass ceiling and wooden doors. In the centre of the Roundhouse, perhaps four metres from the outside wall was a circle of twelve stone caskets with effigies of knights lying at rest carved on top of them. Their feet pointed to a raised central stone slab, which an adult could have laid on. The dome above that circle admitted the light and the exterior wall stood a metre behind twenty-four arches within which were stone bench seats. The whole structure appeared to be about sixty metre in diameter and twenty metres high. “It's magnificent, Roger! You must be very proud of it!” “Yes, I suppose we