"Oh, that?" He grinned. "That was not difficult, Mr.—er—Copplestone. I asked Mr.—er—Richard Cary for your real name and address, and he had to give them to me. I was considering whether I should prosecute both him and you."

"No doubt you bullied Cary," I said, "but you don't alarm me in the least. I had taken precautions, and you would have found your way barred if you had tried to touch either of us."

"It is possible," snapped Dawson. "I should like to lock up all you writing people—you are an infernal nuisance—but you seem to have a pull with the politicians."

We were getting on capitally: the first round was in my favour, and I saw another opportunity of showing my easy unconcern of his powers.

"Oh no, Mr.—er—William Dawson. You would not lock us up, even if all the authority in the State were vested in the soldiers and the police. For who would then write of your exploits and pour upon your heads the bright light of fame? The public knows nothing of Mr. ——" (I held up his card), "but quite a lot of people have heard of William Dawson."

"They have," assented he, with obvious satisfaction. "I sent a copy of the story to my Chief—just to put myself straight with him. I said that it was all quite unauthorised, and that I would have stopped it if I could."

"Oh no, you wouldn't. Don't talk humbug, Mr. William Dawson. During the past two months you have pranced along the streets with your head in the clouds. And in your own home Mrs. Dawson and the little Dawsons—if there are any—have worshipped you as a god. There is nothing so flattering as the sight of oneself in solid black print upon nice white paper. Confess, now. Are you not at this moment carrying a copy of that story of mine in your breast pocket next your heart, and don't you flourish it before your colleagues and rivals about six times, a day?"

Alone among mortal men I have seen a hardened detective blush.

"Throw away that cigarette," said I, "and take a cigar." I felt generous.

Our relations were now established upon a basis satisfactory to me. I had no inkling of the purpose of this visit, but he had lost the advantage of mysterious attack. He had revealed human weakness and had ceased for the moment to dominate me as a terrible engine of the law. But I had heard too much of Dawson from Cary to be under any illusion. He could be chaffed, even made ridiculous, without much difficulty, but no one, however adroit, could divert him by an inch from his professional purpose. He could joke with a victim and drink his health and then walk him off, arm in arm, to the gallows.