Amazon.com description: Product Description: On the third day of August, 1870, I left Paris in search of John Buckhurst. On the 4th of August I lost all traces of Mr. Buckhurst near the frontier, in the village of Morsbronn. The remainder of the day I spent in acquiring that “general information” so dear to the officials in Paris whose flimsy systems of intelligence had already begun to break down. On August 5th, about eight o’clock in the morning, the military telegraph instrument in the operator’s room over the temporary barracks of the Third Hussars clicked out the call for urgency, not the usual military signal, but a secret sequence understood only by certain officers of the Imperial Military Police. The operator on duty therefore stepped into my room and waited while I took his place at the wire. I had been using the code-book that morning, preparing despatches for Paris, and now, at the first series of significant clicks, I dropped my left middle finger on the key and repeated the signal to Paris, using the required variations. Then I rose, locked the door, and returned to the table. “Who is this?” came over the wire in the secret code; and I answered at once: “Inspector of Foreign Division, Imperial Military Police, on duty at Morsbronn, Alsace.” After considerable delay the next message arrived in the Morse code: “Is that you, Scarlett?” And I replied: “Yes. Who are you? Why do you not use the code? Repeat the code signal and your number.”