First of all we must remember that in his age it was part of the education of a gentleman to know something about building. Hugh's grandfather must have built the old keep of Avalon Castle, which still stands above the modern chateau, and a family whose arms are, on a field or the eagle of the empire sable, were builders, both of necessity and of choice. When every baron, or at least every baron's father, had built himself a castle, planned and executed under his own eye; when King Richard in person could plan and superintend the building of his great Castle Saucy, the Chateau Gaillard, it is not wonderful that Hugh also should be ready and willing to do much in stone and mortar. Then, again, he must have had some architectural training at the Grande Chartreuse. The first buildings of wood were overthrown in 1126 by an avalanche, and Guigo, the fifth prior, had refounded the whole buildings after that date. The upper church, since then a chapter house, was built in Romanesque style, with round arches, two rose windows, and three sanctuary windows with wide splays. In 1150 Humbert, Count of Savoy, founded a beautiful chapel and a guest house for visitors; and even later than this there is a good deal of building going on at the lower house, farm buildings, guest house, and possibly even a church during the very time that Hugh was monk and procurator. Even if he took no personal part in any of these last works, he must have known and heard much of the art from men, who had done or were doing it. But it would not be rash to conclude that he had an apprenticeship in building before he set foot on English soil, and as well by education as by inheritance knew something of this work. Next we must bear in mind that every stone would, if possible, have a mystic signification. For some reason or other this notion makes the modern man impatient; but this impatience does not alter the facts, but only obscures their explanation. Everybody knows that the three eastern lights mean, as they did to St. Barbara, the blessed Trinity; but few people recognize that all numbers, whether in beams, pillars, sides, arches, or decoration had a well recognised symbolism, which had come down, hall-marked by St. Augustine and St. Bernard, to the building and worshipping generations of those and much later days. What was done at Witham we cannot now fully tell, for everything has perished of the upper house. The monks' church would be of stone, and probably was very like the present Friary Church. The cells certainly would be of wood in the second stage, for they were of "weeps," as we have seen, in the first. This part of the Charterhouse we have concluded stood in a field now called "Buildings," but now so-called without visible reason.