But he left behind a legacy quite as valuable as his carefully remembered spoken words. This legacy was the paper which he had brought from Franz von Papen. This paper proved to be not a letter, but rather a typewritten memorandum--though all doubt as to its origin was removed by the innocent insistence of Von Knorr that he had come with it from Von Papen’s hand. [Illustration: THE OFFICIAL GERMAN PLOTTERS AT WASHINGTON Above, Ambassador Count Johann von Bernstorff; left, Capt. Franz von Papen, Military Attaché; right, Capt. Karl Boy-Ed, Naval Attaché] [Illustration: VON PAPEN BECOMES ACCESSORY TO A CRIME Though this check was made out in favor of G. Amsinck & Co., the German-American bankers of New York, the counterfoil bears the notation “Traveling expense v W,” that is, “von Wedell.” This check was sent him by Von Papen to enable him to escape after he had forged signatures to two fraudulent passports and realized that he was under surveillance--Von Papen thus becoming accessory after the fact to a crime against American laws] Two most important facts emerged ultimately from a study of this innocent bit of paper. When Ruroede was arrested, among other papers taken from his desk by the officers of the law were numerous typewritten sheets containing lists of names of German officers, their rank, and other facts about them. Ruroede never would admit that these were from Von Papen, but that admission was made for him by a far more trustworthy testimony than his own. This testimony was an expert comparison, under a powerful magnifying glass of the typewriting on these sheets and the typewriting on the Von Knorr memorandum which had undoubtedly come from Von Papen. They were beyond all questioning identical. The same typewriter had written all. By this little microscopic test Von Papen and the other ruthless underlings of Germany were first brought tangibly within sight of their ultimate expulsion from this country, for crimes of which the passport frauds were the least odious. [Illustration: TWO OF RUROEDE’S VISITORS’ CREDENTIALS These cards were presented by two German officers in search of fraudulent passports. They were sent by Von Papen and Mudra (German Consul at Philadelphia), who both frequently directed such officers to Ruroede for this purpose] The other pregnant fact about the Von Knorr memorandum was that the eyes of Justice rested on the name of _Werner Horn_ and lingered long enough to fix that name in memory. Here first swam into its ken the man who tried to destroy the international bridge at Vanceboro, Maine, and whose story is one of the most romantic and adventurous of all the German plotters!