“Ship headed for us,” the _Henrietta’s_ Captain signaled our Commander by our sound conduction system. “She flies the French flag,” he sent to us next. Then later on I got this and handed it to our commander: “Believe she’s a German raider.” Every man was at his post and ready and anxious to do his duty. When the raider, which was the _Koln_ and one of the worst offenders of her kind, was within half-a-mile of the _Henrietta_ she sent a shot over her bow and signaled her to _stand by_. This she did and then the Captain of the _Koln_ signaled that he would send his officers to examine her papers and cargo--to get whatever gold she might have--and this he promptly did. At the same time he had her guns trained on the helpless _Henrietta_ to prevent her from trying to steam away or putting on all speed and ramming her with her sharp bow. Just as the officers of the _Koln_ were being lowered in a launch the Captain of the _Henrietta_ signaled our commander just two words and these were: “Torpedo her.” [Illustration: “OUR TORPEDO PASSED THROUGH THE RAIDER’S HULL AND EXPLODED INSIDE”] We came to the surface about a thousand feet from and on the port side of the _Koln_ and took her completely by surprise. Her gunners began blazing away at us but they had evidently not been trained in the gentle art of swatting submarines for the trajectory of their shells was way too flat, that is it was not curved enough and with, possibly, two exceptions they struck the water and instead of sinking they _ricocheted_, that is they were thrown from it again on the same principle that a flat stone skips along on the water when you throw it nearly parallel to its surface. Bill was right there with his semi-automatic and dropped a couple of shells on the deck of the _Koln_. In less time than it takes to tell it to you our commander had swung our submarine round so that one of her torpedo tubes was pointed directly at the _Koln_ and gave the signal to the officer of the torpedo crew to shoot the torpedo. He turned on the compressed air which drives the torpedo from its tube and it shot out and into the sea. We watched it with all eyes as it traveled like a blue streak under its own power below the surface and dead on for the broadside of the _Koln_. The German crew saw the white trail it left behind and they must have become panic-stricken for some of them jumped overboard, others manned the life-boats and bungled the job so that two of the boats capsized before they ever touched the water. In less than a minute the torpedo struck the hull amidships, passed through it to the inside and exploded with a terrific report.