"Very likely," snapped the detective. "But is a man a white angel because he has the honour to be your friend?"

"A fair retort," commented the Admiral. It happens that I had other and better reasons. For in July I myself showed Mr. Copplestone over the new battleship Rampagious, and after our inspection we both lunched with the builders and discussed her design and armament in every detail. So as Mr. Copplestone knew all about her in July, he was not likely to suborn a draughtsman in November. See?"

"You should have told me this before. It was your duty."

"My good Dawson," said the Admiral gently, "you are an excellent officer of police, but even you have a few things yet to learn. I had in my mind to give you a lesson, especially as I owed you some punishment for your impertinence in opening my friend Copplestone's private letters. You have had the lesson; profit by it."

Dawson flushed angrily. "Punishment! Impertinence! This to me!"

"Yes," returned the Admiral stiffly, "beastly impertinence."

CHAPTER IV

SABOTAGE

Dawson showed no malice towards the Admiral or myself for our treatment of him. I do not think that he felt any; he was too fully occupied in collecting the spoils of victory to trouble his head about what a Scribbler or a Salt Horse might think of him. He gathered to himself every scrap of credit which the affair could be induced to yield, and received—I admit quite deservedly—the most handsome encomiums from his superiors in office. During the two weeks he passed in my city after the capture—weeks occupied in tracing out the threads connecting his wretch of a prisoner with the German agents upon what Dawson called his "little list"—he paid several visits both to my house and my office. His happiness demanded that he should read to me the many letters which poured in from high officials of the C.I.D., from the Chief Commissioner, and on one day—a day of days in the chronicles of Dawson—from the Home Secretary himself. To me it seemed that all these astute potentates knew their Dawson very thoroughly, and lubricated, as it were, with judicious flattery the machinery of his energies. I could not but admire Dawson's truly royal faculty for absorbing butter. The stomachs of most men, really good at their business, would have revolted at the diet which his superiors shovelled into Dawson, but he visibly expanded and blossomed. Yes, Scotland Yard knew its Dawson, and exactly how to stimulate the best that was in him. He never bored me; I enjoyed him too thoroughly.

One day in my club I chanced upon the Admiral.