Herr von Bersac no longer displayed the least interest in his companions. Since he had dropped behind them, and was safe from Von Salzinger's observation, the dreaming had passed out of his dark eyes. They were alight with a keen interest, an interest almost excited, as the wonders of the place revealed themselves to him. But the works and their busy life had less effect than other things. His whole mind seemed to be absorbed in the direction of the water, and the numberless naval craft lying at their moorings. And out of all these his searching eyes selected one type, a type he could not miss, a type which seemed to be prevailing. One of them lay so near inshore that he could observe its every detail of outward construction. It was a curious, ugly vessel of strangely vicious type. He recognized it at once as of the submersible pattern of the vessel he had arrived at Borga in. But it was so huge. It was heavily armored, as it lay there in light draught, high out of water, and on its deck, in place of the simple conning-tower and surmounting periscope, there was a central armored turret, while, fore and aft of this, two other turrets bristled, each with a pair of 12-inch guns. He had no time for a closer inspection as he was hurried along, but he made a mental note that the vessel was a submarine dreadnought, and that there were nearly fifty other such vessels lying about at their moorings. He seemed fearful of concentrating his observation too long in any one direction. A furtive backward glance from the Governor promptly diverted his attention. It almost seemed that he had no desire to invite Captain-General von Salzinger's regard. No doubt he felt that, though his uncle's nephew, he was still only admitted to Borga on sufferance. Finally they approached a high-walled enclosure with closed gates, and a line of sentries guarding its entrance. Immediately he became absorbed in the German characters of the large printed notice on the gates. The notice was to the effect that all entrance to this place without a Governor's permit was "verboten." He became alert and watchful. Doubtless being the engineer responsible for the success of the new U-rays lamp he felt that he must no longer permit his interest to wander. He watched the square figure of the military governor as he took the sentry's salute. He observed the junior officer who promptly threw open one of the massive gates. Then his whole attention became absorbed in what he beheld as, with his companion, he passed within the enclosure. It was a large dock. And moored at each of its three sides was a submarine dreadnought of even greater dimensions than the one he had seen mounting 12-inch guns. The Prince turned to him. "This, my Leder, is the place where we deal with the things, the secret of which the world will never know, but the effects of which one day our enemies will learn to dread."