"July 9th, Evening.—After the wonderful revelation made to me by Lady Chillington this morning, I came home, and got behind a churchwarden, and set my wits to work to think the matter out. I shut my eyes and puffed away for an hour and a half, but at the end of that time I was as much in a fog as when I first sat down. Nowhere could I discern a single ray of light. Then in came Mirpah, and when she begged of me to tell her the story, I was glad to do so, remembering how often she had helped me through a puzzle in days gone by—but none of them of such magnitude as this one. So I told her everything as far as it was known to myself. After that we discussed the whole case carefully step by step. The immediate result of this discussion was, that as soon as tea was over, I went as far as the White Hart tavern in search of Sergeant Nicholas. I found him on the bowling-green, watching the players. I called for a quart of old ale and some tobacco, and before long we were as cosy as two old cronies who have known each other for twenty years. The morning had shown me that the Sergeant was a man of some intelligence, and of much worldly experience; and when I had lowered myself imperceptibly to the level of his intellect, so as to put him more completely at his ease, I had no difficulty in inducing him to talk freely and fully on that one subject which, for the last few hours, has had for me an interest paramount to that of any other. My primary object was to induce him to retail to me every scrap of information that he could call to mind respecting the Russian, Platzoff, who is said to have stolen the diamond. It was Mirpah's opinion and mine, that he must be in possession of many bits of special knowledge, such as might seem of no consequence to him, but which might be invaluable to us in our search, and such as he would naturally leave out of the narrative he told Lady Chillington. The result proved that our opinion was well founded. I did not leave the Sergeant till I had pumped him thoroughly dry. (Mem.: An excellent tap of old ale at the White Hart. Must try some of it at home.)

"I found Mirpah watering her geraniums in the back garden. She was all impatience to learn the result of my interview. I am thankful that increasing years have not impaired my memory. I repeated to Mirpah every word bearing on the case in point that the Sergeant had confided to me. Then I waited in silence for her opinion. I was anxious to know whether it coincided in any way with my own. I am happy to think that it did coincide. Father and daughter were agreed.

"'I think that you have done a very good afternoon's work, papa,' said Mirpah, after a few moments given to silent thought. 'After a lapse of twenty years, it is not likely that Sergeant Nicholas should have a very clear recollection of any conversation that he may have overheard between Captain Chillington and M. Platzoff. Indeed, had he pretended to repeat any such conversation, I should have felt strongly inclined to doubt the truth of his entire narrative. Happily he disclaims any such abnormal powers of memory. He can remember nothing but a chance phrase or two which some secondary circumstance fixed indelibly on his mind. But he can remember a great number of little facts bearing on the relations between his master and the Russian. These facts, considered singly, may seem of little or no importance, but taken in the aggregate, and regarded as so many bits of mosaic work forming part of a complicated whole, they assume an aspect of far greater importance. In any case, they put us on a trail, which may turn out to be the right one or the wrong one, but at present certainly seems to be worth following up. Finally, they all tend to deepen our first suspicion that M. Platzoff was neither more nor less than a political refugee. The next point is to ascertain whether he is still alive.'

"Here again the clear logical intellect of Mirpah (so like my own) came to my assistance. Before parting for the night we were agreed as to what our mode of procedure ought to be on the morrow. This most extraordinary case engages all my thoughts. I am afraid that I shall not be able to sleep much to-night.

"July 10th.—I owe it to Mirpah to say that it was entirely in consequence of a hint from her that I went at an early hour this morning to the office of the Eastbury Courier, there to consult a file of that newspaper. Six months ago the daughter of Sir John Pennythorne was married to a rich London gentleman. Mirpah had read the account of the festivities consequent on that event, and seemed to remember that among other friends of the bridegroom invited down to Finch Hall was some foreign gentleman, who was stated in the newspaper to belong to the Russian Legation in London. Acting on Mirpah's hint, I went back through the files of the Courier till I lighted on the account of the wedding. True enough, among other guests on that occasion, I found catalogued the name of a certain Monsieur H—— of the Russian Embassy. I had got all I wanted from the Eastbury Courier.

"My next proceeding was to hasten up to Deepley Walls, to obtain an interview with Lady Chillington, and to induce her ladyship to write to Sir John Pennythorne, asking him to write to the aforesaid M. H——, and inquire whether, among the archives (I think that is the correct word) of the Embassy, they had any record of a political refugee by name Paul Platzoff, who, twenty years ago, was in India, etc. I had considerable difficulty in persuading her ladyship to write, but at last the letter was sent. I await the result anxiously. The chances seem to me something like a thousand to one against our inquiry being productive of any tangible result. What I dread more than all is that M. Platzoff is no longer among the living.

"July 20th.—Nine days without a word from Sir John Pennythorne, except to say that he had written his friend Monsieur H——, as requested by Lady Chillington. I began to despair. Each morning I inquired of her ladyship whether she had received any reply from Sir John, and each morning her ladyship said: 'I have had no reply, Mr. Madgin, beyond the one you have already seen.'

"Certain matters connected with a lease took me up to Deepley Walls this afternoon for the second time to-day. The afternoon post came in while I was there. Among other letters was one from Sir John Pennythorne, which, when she had read it, her ladyship tossed over to me. It enclosed one from M. H—— to Sir John. It was on the latter that I pounced. It was written in French, but even at the first hasty reading I could make it out sufficiently to know that it was of far greater importance than even in my wildest dreams I had dared to imagine.

"I never saw Lady Chillington so excited as she was during the few moments which I took up in reading the letter. During the nine days that had elapsed since the writing of her letter to Sir John she had treated me somewhat slightingly; there was, or so I fancied, a spice of contempt in her manner towards me. The step I had induced her to take in writing to Sir John had met with no approbation at her hands; it had seemed to her an utterly futile and ridiculous