"I will provide for that. I will write at once for you a letter to the Inspector of police at Burnham, and enclose copies of my credentials from the Admiralty. I will also wire to Lord Jacquetot in private code. You will find on arrival that the responsible naval authorities of the district will be entirely at your service. That motor-boat with the news of the great spoof shall be shepherded across most craftily, but when it comes to return will find that the way of transgressors is very hard. Get ready and be off, Froissart; we depend upon your skill and discretion. Get a good view of your man--the police will point him out--before he boards the train, and then don't let him out of your sight. Take two plain-clothes officers with you. Run no unnecessary risks of being spotted. You are rather easily recognisable with those shining black eyes and black beard, but no one here has seen you officially, and you should pass unsuspected as a Scotland Yard man. Can I trust you?"
"_Mais certainement_," said Froissart crossly. "This is simple police work, which I have done a thousand times. I could do it on my head."
"Your train leaves at 10.8; the South Western station. I will give you the letters at once, and then you can start."
Within a quarter of an hour Dawson--his breakfast forgotten--had given Froissart his letters, sent a long telegram by special messenger to the Commander-in-Chief for despatch in code to Jacquetot. Not even to Dawson would the Admiralty entrust its private cypher. Then, as soon as Froissart had disappeared, he called up the Chief of the Dockyard on the telephone and arranged to come at once to his office.
"I had given the easy job to Froissart," he explained to me long afterwards. "It was, as he called it, simple police work. He had, without arousing suspicion, to make smooth the path for his spy just as you and I opened the door to the Hook for the late-lamented Hagan, and escorted him across in the mail-boat. We have helped false news over to the Germans scores of times. It is grand sport. My job was something much more tricky. I had to get plain proof that my man was a spy in the dockyard, to keep him playing on my line to the very last minute, but to make dead certain of stopping him at the fifty-fifth second of the eleventh hour."