She must keep that mastery, not alone for her own security, but for the security of the whole human race!" The man ran his lean fingers through his shock of white hair. And the action was an expression of relief from tension. A great light was shining in his eyes, a light which told Ruxton Farlow of the hot soul burning within. He knew, had known before, the truth of all this man had just stated, and the corroboration of his own knowledge, through the lips of another, fell with added weight. He shifted his position. The urgency of all that had been said, all he had witnessed, now, as such things always did, drove him to considerations which bore actively upon the situation. "Yes," he said, without emotion, "you have drawn a true picture. A picture which we, who care, have held in our imagination ever since the signing of that disastrous peace. Now I have witnessed for myself all that Germany is preparing." He paused, in deep thought, and the other waited anxiously. "Let us consider now the risks and dangers of the moment," Ruxton went on again presently. He glanced up at the ceiling. The artificial lights were still shining. "We are still submerged. Therefore we are not yet in the open sea. A very real threat still hangs over us--over you. It will still hang over you when I am safely landed on my Yorkshire coast." The shining light of the Prince's eyes was passing. His interest was not in his own safety. He shrugged. "There is no danger for me. With Van Salzinger it is different." "But you have broken the most vital of Borga's regulations. _Can_ the German naval authorities overlook that? Will there be no question? Will you not be forced to produce your nephew to be confronted by--Von Salzinger?" A look of doubt crept into the old man's eyes, and Ruxton knew that his warning had struck home. "That possibility had not occurred to me," he said, with undisturbed simplicity. For some moments Ruxton watched him in silence. "How will you meet--that?" he demanded at last. The man shrugged again. "I must think of it. There will be a way." "Just so. There is a way, Prince," said Ruxton, suddenly bestirring himself. "It is simple. Your real cause is the cause of humanity. Why not defy the claims of Germany? Abandon her, and yield your life to the cause so dear to your heart. Will you not land on the Yorkshire coast with me? A great welcome will await you. And--your daughter--she is in England already." Having launched his appeal, Ruxton sat back in his seat and waited with a tense patience. Vast affairs were hanging in the balance, waiting upon the decision of this man, who was perhaps the mechanical genius of the country which claimed him. After a while the Prince slowly shook his head. And the lack of impulse he displayed warned the other that his decision was irrevocable.