should look on the principle suggested to him by the case of the Brissendens, there would be no danger at all of his finding it. If accordingly, I was nervous for Mrs. Server, all I had to do was to keep him on this false scent. Since it was not she who was paid for, but she who possibly paid, his fancy might harmlessly divert him till the party should disperse. At the same time, in the midst of these reflections, the question of the "change" in her, which he was in so much better a position than I to measure, couldn't help having for me its portent, and the sense of that was, no doubt, in my next words. "What makes you think that what you speak of was what I had in my head?"

"Well, the way, simply, that the shoe fits. She's absolutely not the same person I painted. It's exactly like Mrs. Brissenden's having been for you yesterday not the same person you had last seen bearing her name."

"Very good," I returned, "though I didn't in the least mean to set you digging so hard. However, dig on your side, by all means, while I dig on mine. All I ask of you is complete discretion."

"Ah, naturally!"

"We ought to remember," I pursued, even at the risk of showing as too sententious, "that success in such an inquiry may perhaps be more embarrassing than failure. To nose about for a relation that a lady has her reasons for keeping secret——"

"Is made not only quite inoffensive, I hold"—he immediately took me up—"but positively honourable, by being confined to psychologic evidence."

I wondered a little. "Honourable to whom?"

"Why, to the investigator. Resting on the kind of signs that the game takes account of when fairly played—resting on psychologic signs alone, it's a high application of intelligence. What's ignoble is the detective and the keyhole."

"I see," I af