"Ah, that's a secret!" Faunce answered gravely; and then, after a pause, smiling at Susan Rodney's eager face, all aglow in the lamplight, he added, "We generally have to leave that to the chapter of accidents."

"Then it is only a fluke when you run a man down?" asked Susan.

Lady Perivale was sitting on the sofa, caressing the irresponsive poodle, and too deep in thought about her own case to be greatly concerned in the secrets of Mr. Faunce's calling. She was glad for her friend to be amused, and that was all.

"Well, not quite a fluke," replied Faunce. "We expect a fugitive to do something foolish, something that puzzles some thick-headed person, who communicates with the police. A great deal of our information comes from the outside public, you see, madam. It's often good for nothing; but there's a little gold among the quartz."

"But if the fugitive is too clever for you?"

"Well, even if our man plays the game, we are on the look out for his moves. You see, my lady," turning to Lady Perivale, whose obvious indifference piqued him, "an old hand like me has a good many friends scattered up and down the world. I am able to put a good thing in the way of my friends every now and then. Consequently they are anxious to help me if they can, and they keep their eyes open."

"What sort of people are these friends of yours, Mr. Faunce?" asked Lady Perivale, feeling that the detective's shrewd eyes were upon her face, and that he wanted her to be interested in his discourse.

"That's another secret, a secret of the trade. I can only answer questions about myself, not about my friends. But I might suggest that the porter of a large Metropolitan hotel, anywhere on the main stream of travel, would be a useful ally for a man like me. Then there are people who have retired from the French or English police, who are fond of their old work, and not too proud to undertake an odd job."

"And these people help you?" asked Susan.

"Yes, Miss Rodney"—the name clearly spoken; no mumbled substitute for a name imperfectly heard, or forgotten as soon as heard. John Faunce's educated memory registered every name at the first hearing.