His friend shook his head genially.

"My dear Aaron," he protested, "such a confession from a man of brains, when one considers how the world is overrun with fools, is a terrible one."

"One has a conscience," Rodd sighed, "and a profession like mine doesn't lend itself to crooked dealing."

Harvey Grimm smiled tolerantly. He had the air of one listening to a child.

"The wolves of the world," he said, "keep their conscience, and as regards wrong-doing, it's just success that makes the difference.... My dear fellow!" he broke off, looking up into the face of a man who had paused at their table and whose hand was now reposing heavily upon his shoulder. "My dear Brodie, this is most opportune. Let me present you to my friend, Mr. Aaron Rodd. Aaron, this is Mr. Brodie—in the language of the cinemas," he added, dropping his voice a little and leaning forward, "the sleuthhound of Europe, the greatest living detective."

Aaron Rodd sat for a moment motionless, the cigar slipped from his fingers on to the plate. All his new hopes seemed crumbling away. His eyes were fixed upon the hand which gripped his companion's shoulder. Harvey Grimm began to laugh softly.

"Cheer up, my pessimistic friend!" he exclaimed. "This isn't the grip of the law which is upon my shoulder. Mr. Brodie and I are friends—I might even say allies."

Aaron Rodd recovered himself and murmured a few words of mechanical greeting. The new-comer meanwhile took the chair which the waiter had offered him. He was a tall, burly man, clean-shaven, with steely grey eyes, and grey hair brushed back from his forehead. His manner was consequential, his tone patronising.

"So this is our third hand, eh?"

"Guessed it in one with your usual astuteness," Harvey Grimm acknowledged cheerfully. "A lawyer of unblemished character, not momentarily affluent, with the principles of a latitudinarian."