He apologized very handsomely, but says he has not given up hopes of finding the lady who disappeared.

And now, Jennie, I trust that you will admit my cleverness.

You see that I had only a word or two from my maid as a clue, but I unravelled the whole plot and at once discovered who was the instigator of it, so I think I wouldn't make a bad detective myself.

I am tremendously interested in episodes like this.

I believe if I had known nothing of the impersonation, and if the case had been put in my hands, I should have discovered you long ago.
Can't you think of some way in which my undoubted talent for research may be made use of?
You don't know how much I envy you in your newspaper office, always with an absorbing mystery on hand to solve.