I walked to the railway station accompanied, it is needless to say, by Gabriel Betteredge. I had the letter in my pocket, and the nightgown safely packed in a little bag - both to be submitted, before I slept that night, to the investigation of Mr. Bruff.

We left the house in silence. For the first time in my experience of him, I found old Betteredge in my company without a word to say to me. Having something to say on my side, I opened the conversation as soon as we were clear of the lodge gates.

"Before I go to London," I began, "I have two questions to ask you. They relate to myself, and I believe they will rather surprise you."

"If they will put that poor creature's letter out of my head, Mr. Franklin, they may do anything else they like with me. Please to begin surprising me, sir, as soon as you can."

"My first question, Betteredge, is this. Was I drunk on the night of Rachel's Birthday?"

"YOU drunk!" exclaimed the old man. "Why it's the great defect of your character, Mr. Franklin that you only drink with your dinner, and never touch a drop of liquor afterwards!"

"But the birthday was a special occasion. I might have abandoned my regular habits, on that night of all others."

Betteredge considered for a moment.

"You did go out of your habits, sir," he said. "And I'll tell you how. You looked wretchedly ill - and we persuaded you to have a drop of brandy and water to cheer you up a little."

"I am not used to brandy and water. It is quite possible - - "

"Wait a bit, Mr. Franklin. I knew you were not used, too. I poured you out half a wineglass-full of our fifty year old Cognac; and (more shame for me!) I drowned that noble liquor in nigh on a tumbler-full of cold water. A child couldn't have got drunk on it - let alone a grown man!"

I knew I could depend on his memory, in a matter of this kind. It was plainly impossible that I could have been intoxicated. I passed on to the second question.

"Before I was sent abroad, Betteredge, you saw a great deal of me when I was a boy? Now tell me plainly, do you remember anything strange of me, after I had gone to bed at night? Did you ever discover me walking in my sleep?"

Betteredge stopped, looked at me for a moment, nodded his head, and walked on again.

"I see your drift now, Mr. Franklin!" he said "You're trying to account for how you got the paint on your nightgown, without knowing it yourself. It won't do, sir. You're miles away still from getting at the truth. Walk in your sleep? You never did such a thing in your life!"

Here again, I felt that Betteredge must be right. Neither at home nor abroad had my life ever been of the solitary sort. If I had been a sleep-walker, there were hundreds on hundreds of people who must have discovered me, and who, in the interest of my own safety, would have warned me of the habit, and have taken precautions to restrain it.

Still, admitting all this, I clung - with an obstinacy which was surely natural and excusable, under the circumstances - to one or other of the only two explanations that I could see which accounted for the unendurable position in which I then stood. Observing that I was not yet satisfied, Betteredge shrewdly adverted to certain later events in the history of the Moonstone; and scattered both my theories to the wind at once and for ever.

"Let's try it another way, sir," he said. "Keep your own opinion, and see how far it will take you towards finding out the truth. If we are to believe the nightgown - which I don't for one - you not only smeared off the paint from the door, without knowing it, but you also took the Diamond without knowing it. Is that right, so far?"

"Quite right. Go on."

"Very good, sir. We'll say you were drunk, or walking in your sleep, when you took the jewel. That accounts for the night and morning, after the birthday. But how does it account for what has happened since that time? The Diamond has been taken to London, since that time. The Diamond has been pledged to Mr. Luker, since that time. Did you do those two things, without knowing it, too? Were you drunk when I saw you off in the pony-chaise on that Saturday evening? And did you walk in your sleep to Mr. Luker's, when the train had brought you to your journey's end? Excuse me for saying it, Mr. Franklin, but this business has so upset you, that you're not fit yet to judge for yourself. The sooner you lay your head alongside Mr. Bruff's head, the sooner you will see your way out of the dead-lock that has got you now."

We reached the station, with only a minute or two to spare.

I hurriedly gave Betteredge my address in London, so that he might write to me, if necessary; promising, on my side, to inform him of any news which I might have to communicate. This done, and just as I was bidding him farewell, I happened to glance towards the book-and-newspaper stall. There was Mr. Candy's remarkable-looking assistant again, speaking to the keeper of the stall! Our eyes met at the same moment. Ezra Jennings took off his hat to me. I returned the salute, and got into a carriage just as the train started. It was a relief to my mind, I suppose, to dwell on any subject which appeared to be, personally, of no sort of importance to me. At all events, I began the momentous journey back which was to take me to Mr. Bruff, wondering - absurdly enough, I admit - that I should have seen the man with the piebald hair twice in one day!

The hour at which I arrived in London precluded all hope of my finding Mr. Bruff at his place of business. I drove from the railway to his private residence at Hampstead, and disturbed the old lawyer dozing alone in his dining-room, with his favourite pug-dog on his lap, and his bottle of wine at his elbow.

I shall best describe the effect which my story produced on the mind of Mr. Bruff by relating his proceedings when he had heard it to the end. He ordered lights, and strong tea, to be taken into his study; and he sent a message to the ladies of his family, forbidding them to disturb us on any pretence whatever. These preliminaries disposed of, he first examined the nightgown, and then devoted himself to the reading of Rosanna Spearman's letter.