Dawson began once more to descant upon his own astuteness, but I was too sick at heart to listen. I remembered only the visit years before which that man's wife had paid to me. "Will you not open the parcel?" I interposed. He fell upon it, exposed its contents of bread, chocolate, and sardine tins, and called for a can opener. He shook the tins one by one beside his ear, and then, selecting that which gave out no "flop" of oil, stripped it open, plunged his fingers inside, and pulled forth a clammy mess of putty and sawdust. In a moment he had come upon a paper which after reading he handed to me. It bore the words in English, "Informant arrested: dare not send more." "What a fool!" cried Dawson. "As if the evidence against him were not sufficient already he must give us this." "You will let that poor devil of a draughtsman down easily?" I murmured. "We want him as a witness," replied Dawson. "Tit for tat. If he helps us, we will help him. And now we will cut along to the Admiral. He is eager for news." We broke in upon the Admiral in his office near the shipyards, and he greeted me with cheerful badinage. "So you are in the hands of the police at last, Copplestone. I always told you what would be the end of your naval inquisitiveness." Dawson told his story, and the naval officer's keen kindly face grew stern and hard. "Germans I can respect," said he, "even those that pretend to be our friends. But one of our own folk--to sell us like this--ugh! Take the vermin away; Dawson, and stamp upon it." We stood talking for a few moments, and then Dawson broke in with a question. "I have never understood, Admiral, why you were so very confident that Mr. Copplestone here had no hand in this business. The case against him looked pretty ugly, yet you laughed at it all the time. Why were you so sure?" The Admiral surveyed Dawson as if he were some strange creature from an unknown world. "Mr. Copplestone is a friend of mine," said he drily. "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."