Presumably executive workers in the German Secret Service knew as much about these things as Dr. Graves did himself. Perhaps it is part of their training and instruction to attempt to involve representatives of other nations with whom they come in contact and whose energies may be considered prejudicial or annoying to them, in quarrels or in brawls where a blow can be struck which it might be difficult if not impossible to trace. It must be more than a coincidence that Secret Service agents often find themselves in the middle of a small crowd where the pick-pocketing fraternity are undoubtedly represented. Be as careful, polite, and inoffensive as possible, quick-tempered, irascible irreconcilables will at times attempt to pick a quarrel. Boats, motor-cars, and other vehicles by which Secret Service agents travel often meet with mysterious and altogether unaccountable accidents, whilst a challenge to a duel, for some trifling cause, is an experience which more than one of them has had to endure and to evade as best he can. I chuckle now as I remember how I passed through one of these ordeals, not a hundred miles from the Rathhaus of Kiel. The incident took place very shortly before this world-war had actually begun. I have happily only received the very doubtful honour of one challenge since, which I insisted on treating as a practical joke, wisely absenting myself before developments could make the situation serious and untenable. Both these incidents arose through polite assistance being rendered to a lady in distress. The former typically exemplifies German methods, whilst its details cannot be considered devoid of interest. I had for some years been prowling round on erratic wildfowling expeditions in the Baltic and along the western coast of Schleswig Holstein. My operations were at times based from the Esbjerg fjord, but I was no respecter of frontiers and there had been trouble whenever I had drifted too far south with the officious and zealous guardians of the German coast. I had previously, when travelling on business and pleasure combined, known trouble at both Berlin and Potsdam; later on at and near to Hamburg. Apparently I was not popular with a certain section of German officialdom. Perhaps I had become too well known; that might or might not have been. Anyhow, for a long period before the war all German officials showed nervous hysteria in relation to suspected espionage regarding any Britisher who exhibited the smallest interest in the Heligoland district or the western islands, Kiel Canal, and Kiel Harbour. Yet I paid about as much attention to official fussiness as I would have done to a pinch of salt. One memorable winter I had travelled north as usual, little thinking that any adventure would befall me.