"What's the matter?" I inquired. "Somebody who oughtn't to be here?" "Not at all. He's got a perfect right to be anywhere he pleases, but I didn't know he was home. Last time I heard of him he was in Seattle, mixed up with those riots that Ole Hanson handled so well." "Bolshevist?" "Hardly," and Quinn smiled. "Don't you know Jimmy Callahan? Well, it's scarcely the province of a Secret Service man to impress his face upon everyone ... the secret wouldn't last long. No, Jimmy was working on the other end of the Seattle affair. Trying to locate the men behind the move--and I understand he did it fairly well, too. But what else would you expect from the man who solved that submarine tangle in Norfolk?" Quinn must have read the look of interest in my face, for he continued, almost without a pause: "Did you ever hear the inside of that case? One of the most remarkable in the whole history of the Secret Service, and that's saying a good deal. I don't suppose it would do any harm to spill it, so let's move over there in a corner and I'll relate a few details of a case where the second hand of a watch played a leading role." * * * * * The whole thing started back in the spring of 1918 [said Quinn, who held down a soft berth in the Treasury Department as a reward for a game leg obtained during a counterfeiting raid on Long Island]. Along about then, if you remember, the Germans let loose a lot of boasting statements as to what they were going to do to American ships and American shipping. Transports were going to be sunk, commerce crippled and all that sort of thing. While not a word of it got into the papers, there were a bunch of people right here in Washington who took these threats seriously--for the Hun's most powerful weapon appeared to be in his submarines, and if a fleet of them once got going off the coast we'd lose a lot of valuable men and time landing them. Then came the sinking of the _Carolina_ and those other ships off the Jersey coast. Altogether it looked like a warm summer. One afternoon the Chief sent for Callahan, who'd just come back from taking care of some job down on the border, and told him his troubles.