"Very well, then," Leibniz muttered, and led Fatio through a temporary door of rough planks and into the stable. It was unheated, but it got their faces out of the wind, and their feet out of the snow. The foundation and ground-floor walls were made of large blocks of undressed stone. Everything above those was built of timbers. So far, the temporary scaffolding was more substantial than the structure itself, which was only sketched in with a few posts and beams. Fatio was baffled, and soon turned his huge eyes downwards to the several tables arrayed in the center of the main floor.