Late that evening, I was surprised at my lodgings by a visit from Mr. Bruff.

There was a noticeable change in the lawyer’s manner. It had lost its usual confidence and spirit. He shook hands with me, for the first time in his life, in silence.

“Are you going back to Hampstead?” I asked, by way of saying something.

“I have just left Hampstead,” he answered. “I know, Mr. Franklin, that you have got at the truth at last. But, I tell you plainly, if I could have foreseen the price that was to be paid for it, I should have preferred leaving you in the dark.”

“You have seen Rachel?”

“I have come here after taking her back to Portland Place; it was impossible to let her return in the carriage by herself. I can hardly hold you responsible—considering that you saw her in my house and by my permission—for the shock that this unlucky interview has inflicted on her. All I can do is to provide against a repetition of the mischief. She is young—she has a resolute spirit—she will get over this, with time and rest to help her. I want to be assured that you will do nothing to hinder her recovery. May I depend on your making no second attempt to see her—except with my sanction and approval?”

“After what she has suffered, and after what I have suffered,” I said, “you may rely on me.”

“I have your promise?”

“You have my promise.”

Mr. Bruff looked relieved. He put down his hat, and drew his chair nearer to mine.

“That’s settled!” he said. “Now, about the future—your future, I mean. To my mind, the result of the extraordinary turn which the matter has now taken is briefly this. In the first place, we are sure that Rachel has told you the whole truth, as plainly as words can tell it. In the second place—though we know that there must be some dreadful mistake somewhere—we can hardly blame her for believing you to be guilty, on the evidence of her own senses; backed, as that evidence has been, by circumstances which appear, on the face of them, to tell dead against you.”

There I interposed. “I don’t blame Rachel,” I said. “I only regret that she could not prevail on herself to speak more plainly to me at the time.”

“You might as well regret that Rachel is not somebody else,” rejoined Mr. Bruff. “And even then, I doubt if a girl of any delicacy, whose heart had been set on marrying you, could have brought herself to charge you to your face with being a thief. Anyhow, it was not in Rachel’s nature to do it. In a very different matter to this matter of yours—which placed her, however, in a position not altogether unlike her position towards you—I happen to know that she was influenced by a similar motive to the motive which actuated her conduct in your case. Besides, as she told me herself, on our way to town this evening, if she had spoken plainly, she would no more have believed your denial then than she believes it now. What answer can you make to that? There is no answer to be made to it. Come, come, Mr. Franklin! my view of the case has been proved to be all wrong, I admit—but, as things are now, my advice may be worth having for all that. I tell you plainly, we shall be wasting our time, and cudgelling our brains to no purpose, if we attempt to try back, and unravel this frightful complication from the beginning. Let us close our minds resolutely to all that happened last year at Lady Verinder’s country house; and let us look to what we can discover in the future, instead of to what we can not discover in the past.”

“Surely you forget,” I said, “that the whole thing is essentially a matter of the past—so far as I am concerned?”

“Answer me this,” retorted Mr. Bruff. “Is the Moonstone at the bottom of all the mischief—or is it not?”

“It is—of course.”

“Very good. What do we believe was done with the Moonstone, when it was taken to London?”

“It was pledged to Mr. Luker.”

“We know that you are not the person who pledged it. Do we know who did?”

“No.”

“Where do we believe the Moonstone to be now?”

“Deposited in the keeping of Mr. Luker’s bankers.”

“Exactly. Now observe. We are already in the month of June. Towards the end of the month (I can’t be particular to a day) a year will have elapsed from the time when we believe the jewel to have been pledged. There is a chance—to say the least—that the person who pawned it, may be prepared to redeem it when the year’s time has expired. If he redeems it, Mr. Luker must himself—according to the terms of his own arrangement—take the Diamond out of his banker’s hands. Under these circumstances, I propose setting a watch at the bank, as the present month draws to an end, and discovering who the person is to whom Mr. Luker restores the Moonstone. Do you see it now?”

I admitted (a little unwillingly) that the idea was a new one, at any rate.

“It’s Mr. Murthwaite’s idea quite as much as mine,” said Mr. Bruff. “It might have never entered my head, but for a conversation we had together some time since. If Mr. Murthwaite is right, the Indians are likely to be on the lookout at the bank, towards the end of the month too—and something serious may come of it. What comes of it doesn’t matter to you and me except as it may help us to lay our hands on the mysterious Somebody who pawned the Diamond. That person, you may rely on it, is responsible (I don’t pretend to know how) for the position in which you stand at this moment; and that person alone can set you right in Rachel’s estimation.”

“I can’t deny,” I said, “that the plan you propose meets the difficulty in a way that is very daring, and very ingenious, and very new. But——”

“But you have an objection to make?”

“Yes. My objection is, that your proposal obliges us to wait.”

“Granted. As I reckon the time, it requires you to wait about a fortnight—more or less. Is that so very long?”

“It’s a life-time, Mr. Bruff, in such a situation as mine. My existence will be simply unendurable to me, unless I do something towards clearing my character at once.”

“Well, well, I understand that. Have you thought yet of what you can do?”

“I have thought of consulting Sergeant Cuff.”

“He has retired from the police. It’s useless to expect the Sergeant to help you.”

“I know where to find him; and I can but try.”

“Try,” said Mr. Bruff, after a moment’s consideration. “The case has assumed such an extraordinary aspect since Sergeant Cuff’s time, that you may revive his interest in the inquiry. Try, and let me hear the result. In the meanwhile,” he continued, rising, “if you make no discoveries between this, and the end of the month, am I free to try, on my side, what can be done by keeping a lookout at the bank?”

“Certainly,” I answered—“unless I relieve you of all necessity for trying the experiment in the interval.”

Mr. Bruff smiled, and took up his hat.

“Tell Sergeant Cuff,” he rejoined, “that I say the discovery of the truth depends on the discovery of the person who pawned the Diamond. And let me hear what the Sergeant’s experience says to that.”

So we parted.

Early the next morning, I set forth for the little town of Dorking—the place of Sergeant Cuff’s retirement, as indicated to me by Betteredge.

Inquiring at the hotel, I received the necessary directions for finding the Sergeant’s cottage. It was approached by a quiet bye-road, a little way out of the town, and it stood snugly in the middle of its own plot of garden ground, protected by a good brick wall at the back and the sides, and by a high quickset hedge in front. The gate, ornamented at the upper part by smartly-painted trellis-work, was locked. After ringing at the bell, I peered through the trellis-work, and saw the great Cuff’s favourite flower everywhere; blooming in his garden, clustering over his door, looking in at his windows. Far from the crimes and the mysteries of the great city, the illustrious thief-taker was placidly living out the last Sybarite years of his life, smothered in roses!

A decent elderly woman opened the gate to me, and at once annihilated all the hopes I had built on securing the assistance of Sergeant Cuff. He had started, only the day before, on a journey to Ireland.

“Has he gone there on business?” I asked.

The woman smiled. “He has only one business now, sir,” she said; “and that’s roses. Some great man’s gardener in Ireland has found out something new in the growing of roses—and Mr. Cuff’s away to inquire into it.”

“Do you know when he will be back?”

“It’s quite uncertain, sir. Mr. Cuff said he should come back directly, or be away some time, just according as he found the new discovery worth nothing, or worth looking into. If you have any message to leave for him, I’ll take care, sir, that he gets it.”

I gave her my card, having first written on it in pencil: “I have something to say about the Moonstone. Let me hear from you as soon as you get back.” That done, there was nothing left but to submit to circumstances, and return to London.

In the irritable condition of my mind, at the time of which I am now writing, the abortive result of my journey to the Sergeant’s cottage simply aggravated the restless impulse in me to be doing something. On the day of my return from Dorking, I determined that the next morning should find me bent on a new effort at forcing my way, through all obstacles, from the darkness to the light.

What form was my next experiment to take?

If the excellent Betteredge had been present while I was considering that question, and if he had been let into the secret of my thoughts, he would, no doubt, have declared that the German side of me was, on this occasion, my uppermost side. To speak seriously, it is perhaps possible that my German training was in some degree responsible for the labyrinth of useless speculations in which I now involved myself. For the greater part of the night, I sat smoking, and building up theories, one more profoundly improbable than another. When I did get to sleep, my waking fancies pursued me in dreams. I rose the next morning, with Objective-Subjective and Subjective-Objective inextricably entangled together in my mind; and I began the day which was to witness my next effort at practical action of some kind, by doubting whether I had any sort of right (on purely philosophical grounds) to consider any sort of thing (the Diamond included) as existing at all.

How long I might have remained lost in the mist of my own metaphysics, if I had been left to extricate myself, it is impossible for me to say. As the event proved, accident came to my rescue, and happily delivered me. I happened to wear, that morning, the same coat which I had worn on the day of my interview with Rachel. Searching for something else in one of the pockets, I came upon a crumpled piece of paper, and, taking it out, found Betteredge’s forgotten letter in my hand.

It seemed hard on my good old friend to leave him without a reply. I went to my writing-table, and read his letter again.

A letter which has nothing of the slightest importance in it, is not always an easy letter to answer. Betteredge’s present effort at corresponding with me came within this category. Mr. Candy’s assistant, otherwise Ezra Jennings, had told his master that he had seen me; and Mr. Candy, in his turn, wanted to see me and say something to me, when I was next in the neighbourhood of Frizinghall. What was to be said in answer to that, which would be worth the paper it was written on? I sat idly drawing likenesses from memory of Mr. Candy’s remarkable-looking assistant, on the sheet of paper which I had vowed to dedicate to Betteredge—until it suddenly occurred to me that here was the irrepressible Ezra Jennings getting in my way again! I threw a dozen portraits, at least, of the man with the piebald hair (the hair in every case, remarkably like), into the waste-paper basket—and then and there, wrote my answer to Betteredge. It was a perfectly commonplace letter—but it had one excellent effect on me. The effort of writing a few sentences, in plain English, completely cleared my mind of the cloudy nonsense which had filled it since the previous day.

Devoting myself once more to the elucidation of the impenetrable puzzle which my own position presented to me, I now tried to meet the difficulty by investigating it from a plainly practical point of view. The events of the memorable night being still unintelligible to me, I looked a little farther back, and searched my memory of the earlier hours of the birthday for any incident which might prove of some assistance to me in finding the clue.

Had anything happened while Rachel and I were finishing the painted door? or, later, when I rode over to Frizinghall? or afterwards, when I went back with Godfrey Ablewhite and his sisters? or, later again, when I put the Moonstone into Rachel’s hands? or, later still, when the company came, and we all assembled round the dinner-table? My memory disposed of that string of questions readily enough, until I came to the last. Looking back at the social event of the birthday dinner, I found myself brought to a standstill at the outset of the inquiry. I was not even capable of accurately remembering the number of the guests who had sat at the same table with me.

To feel myself completely at fault here, and to conclude, thereupon, that the incidents of the dinner might especially repay the trouble of investigating them, formed parts of the same mental process, in my case. I believe other people, in a similar situation, would have reasoned as I did. When the pursuit of our own interests causes us to become objects of inquiry to ourselves, we are naturally suspicious of what we don’t know. Once in possession of the names of the persons who had been present at the dinner, I resolved—as a means of enriching the deficient resources of my own memory—to appeal to the memory of the rest of the guests; to write down all that they could recollect of the social events of the birthday; and to test the result, thus obtained, by the light of what had happened afterwards, when the company had left the house.

This last and newest of my many contemplated experiments in the art of inquiry—which Betteredge would probably have attributed to the clear-headed, or French, side of me being uppermost for the moment—may fairly claim record here, on its own merits. Unlikely as it may seem, I had now actually groped my way to the root of the matter at last. All I wanted was a hint to guide me in the right direction at starting. Before another day had passed over my head, that hint was given me by one of the company who had been present at the birthday feast!

With the pla............