In the course of my efforts to combat the work of German spies in England I had been forced to make many queer friendships, but none perhaps so strange as the one I was now cultivating. Suzette Darbour was, I had learned from Ray Raymond a few months ago, a decoy in association with a very prince of swindlers, an American who made his head-quarters in Paris, and who had in the past year or two effected amazing _coups_, financial and otherwise, in the various capitals of Europe. Her age was perhaps twenty-two, though certainly she did not look more than eighteen. She spoke both English and Russian quite well, for, as she had told me long ago, she had spent her early days in Petersburg. And probably in those twenty years of her life she had learnt more than many women had learned in forty. Hers was an angelic face, with big, wide-open, truthful eyes, but her heart was, I knew, cold and callous. Could I--dare I--take her into my service--to assist me in a matter of the most vital importance to British interests? The mission upon which I was engaged at that moment was both delicate and difficult. A single false move would mean exposure. I was playing a deep game, and it surely behoved me to exercise every precaution. During the years I had been endeavouring to prove the peril to which England was exposed from foreign invasion, I had never been nearer failure than now. Indeed, I held my breath each time I recollected all that depended upon my success. Ray Raymond, Vera Vallance, and myself had constituted ourselves into a little band with the object of combating the activity of the ingenious spies of the Kaiser. Little does the average Englishman dream of the work of the secret agent, or how his success or failure is reflected in our diplomatic negotiations with the Powers. Ambassadors and ministers may wear smart uniforms with glittering decorations, and move in their splendid embassies surrounded by their brilliant staffs; attachés may flirt, and first secretaries may take tea with duchesses, yet to the spy is left the real work of diplomacy, for, after all, it is upon the knowledge he obtains that His Excellency the Ambassador frames his despatch to his Government, or the Minister for Foreign Affairs presents a "Note" to the Powers. We had for months been working on without publicity, unheeded, unrecognised, unprotected, unknown. A thankless though dangerous task, our only reward had been a kind word from the silent, sad-faced Prime Minister himself. For months our whereabouts had been unknown, even to each other. Ray generally scented the presence of spies, and it was for me to carry through the inquiry in the manner which I considered best and safest for myself. "Suzette," I said at length, looking at her across the rising smoke from my cigarette, "when we last met you had the advantage of me. To-day we stand upon even ground."