Both struck out rapidly, but in spite of their resistance, they were soon overpowered by the numerical superiority of their foes, and thrown to the floor.

There, realizing the uselessness of further struggling, they gave up and lay still.

The German officer, having struggled to his feet in the meantime, now approached and stood over them. Perceiving they were no longer offering resistance, he motioned the sailors to let them up.

The lads arose and faced the officer.

"I realize your position better than you are probably aware," he said, speaking coldly, "and for that reason I shall overlook your attack upon me. I would have done as you did. I could not stand by and see a German ship sent to the bottom without raising a hand to prevent it. Go to your cabin, sirs." The boys bowed, and obeyed.

But while the boys were scuffling with the German officer and some of the sailors, others had pushed a second torpedo into the tube. And a sailor shouted, making himself heard by dint of a very powerful voice: "Did we hit her?"

Instinctively all kept count—one hundred meters, two hundred meters, three hundred, four hundred. Under the water no sound penetrated. Waiting was all that could be done. For a few moments nothing happened.

Then, suddenly, every man on the boat, Jack and Frank in the cabin, the captain, officers and all, were almost thrown from their feet by a terrific jerk of the submarine. Another jerk, and still another.

Then the submarine rolled as before—evenly. A moment and the regular purring of the engines was heard again. The submarine moved rapidly eastward.

She was on her way back home.