such a system, which gives no advantage to cannon. Besides, as the fosses were lower than, or on a level with, the sea, these fosses could be instantly inundated by means of subterranean sluices. Otherwise, the works were almost complete, and a group of workmen, receiving orders from a man who appeared to be conductor of the works, were occupied in placing the last stones. A bridge of planks thrown over the fosses for the greater convenience of the maneuvers connected with the barrows, joined the interior to the exterior. With an air of simple curiosity D’Artagnan asked if he might be permitted to cross the bridge, and he was told that no order prevented it. Consequently he crossed the bridge, and advanced towards the group.

This group was superintended by the man whom D’Artagnan had already remarked, and who