"All night," she replied. "I am a splendid sleeper."

Her manner was so straightforward and honest that I could not bring myself to believe in her duplicity; yet—Thinking to surprise her into a betrayal of her guilt, I blurted out: "The chronometer and sextant were both destroyed last night; there is a traitor among us." But she never turned a hair by way of evidencing guilty knowledge of the catastrophe.

"Who could it have been?" she cried. "The Germans would be crazy to do it, for their lives are as much at stake as ours."

"Men are often glad to die for an ideal—an ideal of patriotism, perhaps," I replied; "and a willingness to martyr themselves includes a willingness to sacrifice others, even those who love them. Women are much the same, except that they will go even further than most men—they will sacrifice everything, even honor, for love."

I watched her face carefully as I spoke, and I thought that I detected a very faint flush mounting her cheek. Seeing an opening and an advantage, I sought to follow it up.

"Take von Schoenvorts, for instance," I continued: "he would doubtless be glad to die and take us all with him, could he prevent in no other way the falling of his vessel into enemy hands. He would sacrifice anyone, even you; and if you still love him, you might be his ready tool. Do you understand me?"

She looked at me in wide-eyed consternation for a moment, and then she went very white and rose from her seat. "I do," she replied, and turning her back upon me, she walked quickly toward her room. I started to follow, for even believing what I did, I was sorry that I had hurt her. I reached the door to the crew's room just behind her and in time to see von Schoenvorts lean forward and whisper something to her as she passed; but she must have guessed that she might be watched, for she passed on.

That afternoon it clouded over; the wind mounted to a gale, and the sea rose until the craft was wallowing and rolling frightfully. Nearly everyone aboard was sick; the air became foul and oppressive. For twenty-four hours I did not leave my post in the conning tower, as both Olson and Bradley were sick. Finally I found that I must get a little rest, and so I looked about for some one to relieve me. Benson volunteered. He had not been sick, and assured me that he was a former R.N. man and had been detailed for submarine duty for over two years. I was glad that it was he, for I had considerable confidence in his loyalty, and so it was with a feeling of security that I went below and lay down.

I slept twelve hours straight, and when I awoke and discovered what I had done, I lost no time in getting to the conning tower. There sat Benson as wide awake as could be, and the compass showed that we were heading straight into the west. The storm was still raging; nor did it abate its fury until the fourth day. We were all pretty well done up and looked forward to the time when we could go on deck and fill our lungs with fresh air. During the whole four days I had not seen the girl, as she evidently kept closely to her room; and during this time no untoward incident had occurred aboard the boat—a fact which seemed to strengthen the web of circumstantial evidence about her.

For six more days after the storm lessened we still had fairly rough weather; nor did the sun once show himself during all that time. For the season—it was now the middle of June—the storm was unusual; but being from southern California, I was accustomed to unusual weather. In fact, I have discovered that the world over, unusual weather prevails at all times of the year.