The opponents, the German Intelligence Office and the American Secret Service, were not so unevenly matched as one might imagine. What advantage the Germans lost by being in the enemy's country they made up by being prepared far in advance, and by knowing just what they wanted to do. And there is always an advantage on the side of the hunted animal. Let us see briefly just what each organization was like.

The German service in its heyday was a fearful and wonderful thing. Little by little, as spies were "shadowed," captured, and their papers examined, the whole far-reaching tangle was revealed. One can tell only a little here about this tangle—for to tell it all would take more books than one.

In the German system there were five or six names to be remembered. Count von Bernstorff, the German Ambassador and chief plotter; Dr. Heinrich Albert, his assistant and treasurer; Franz von Rintelen, reported to be a near relative to the Kaiser; Captain Franz von Papen, the military attaché; and his partner, Captain Boy-Ed, the naval attaché. From this group at the top, the lines spread down, through business men, doctors, editors, clerks, butlers, and every rank and class in America. "Big Bill" Flynn, for many years the clever chief of the Secret Service, said that he thought there were 250,000 men and women in this country who were working for Germany. Sad to say, not all of them were German by birth; a few, the most dangerous, were native Americans, although they were Germans at heart. Everywhere, in the most unexpected places, these German agents were found, always busily carrying out their orders with regular German blindness, and never questioning or knowing anything about the hideous acts of their superiors. The German machine was, in short, like a huge wheel, with the brains at the hub.

The United States fought this contemptible creation with several weapons. The Secret Service was of course the most active; but it was very greatly helped by the Department of Justice, the Naval Intelligence, and the Military Intelligence, as well as by the police departments in the various cities. In fact, one of the greatest troubles at times was that too many agencies would be working on the same case. They stepped on each other's heels.

All these branches grew in size during the war, but especially the Naval and Military Intelligence offices. As early as January, 1916, patriotic citizens were quietly serving their government, all unknown even to their own friends, and were collecting pieces of information and hints here and there that, in the end, were of great value. If the Germans had spies in every nook and cranny of our nation, so did we—business men, secretaries, cooks, doctors, and laborers. The Secret Service was everywhere. Again and again, when some devoted German was busily doing his duty to his Fatherland, an American Secret Service agent would lay a hand on his shoulder and show him a ticket to a prison camp. And then, so curious is the German way of thinking, nine times out of ten the German, intensely surprised and very cross at being caught in the act, would insist that he was doing nothing, and that he had a perfect right to do it!

Now watch the two forces at war. The German machine was working quietly along, now and then blowing up a factory and now and then being caught red-handed. It had already suffered a severe loss, for Captain von Papen, the military attaché, had been discovered in his work by the British and had been deported. When he reached Germany, by the way, he was given the Order of the Red Eagle by the Kaiser, who doubtless recognized in the bungling plotter a fellow spirit. Thanks to the information gained from von Papen's papers, the United States had a very good idea of what the other Germans in America were doing and began to make arrests.

Every afternoon at about five o'clock Dr. Albert, the ambassador's assistant, would leave his office at 45 Broadway, New York, and take the elevated railroad uptown to his luxurious rooms in the German Club. He always carried with him a brown leather dispatch case. The Secret Service men, who had been keeping an eye on him, determined to get that case, because they knew from the way the doctor always held on to it, that it must contain something important. A wise member of the Service was chosen to make the coup.

He watched the German closely for many days, and saw that the doctor took a train just at five o'clock every day; that, on the train, he read his evening paper very intently (possibly to see which one of his friends had been arrested last); and that he always walked through the same streets from the railroad to his club. Finally one day the agent decided that he was ready to try for that little brown case.

That evening a quiet, well-mannered gentleman, not noticeable in any particular way, took the seat next to Dr. Albert on the train. The doctor spread out his paper with true German disregard for the persons on each side of him, and began to read. Always he held the flat brown case clutched against his side. The train passed several stations and still the doctor hugged his case. Although the car was packed with people, the American carefully avoided crushing against the spy, for fear of alarming him. More stations were left behind, and the doctor had nearly finished his paper. The Secret Service man was getting worried; would he fail? And there were the papers, so close to him. Then the train stopped at the next to the last station. At the same minute Dr. Albert completed his reading, and for the fraction of a moment raised his arm to fold the sheets. With lightning quickness the agent slid the dispatch case away from the doctor's side and stood up. Two or three people jostled him, and he staggered against the doctor. Then he lunged for the door. The doctor finished folding his paper and felt for his case. It was gone. He jumped to his feet and glared around him wildly.

"Conductor!" he shouted, "My case! It is gone!"