“‘And I,’ said the son, ‘seeing my father pass the door of the waiting-room, naturally thought that the consultation had come to an end. It was not until we had reached home that I began to realize the true state of affairs.’

“‘Well,’ said I, laughing, ‘there is no harm done except that you puzzled me terribly; so if you, sir, would kindly step into the waiting-room I shall be happy to continue our consultation which was brought to so abrupt an ending.’

“‘For half an hour or so I discussed that old gentleman’s symptoms with him, and then, having prescribed for him, I saw him go off upon the arm of his son.

“I have told you that Mr. Blessington generally chose this hour of the day for his exercise. He came in shortly afterwards and passed upstairs. An instant later I heard him running down, and he burst into my consulting-room like a man who is mad with panic.

“‘Who has been in my room?’ he cried.

“‘No one,’ said I.

“‘It’s a lie! He yelled. ‘Come up and look!’

“I passed over the grossness of his language, as he seemed half out of his mind with fear. When I went upstairs with him he pointed to several footprints upon the light carpet.

“‘D’you mean to say those are mine?’ he cried.

“They were certainly very much larger than any which he could have made, and were evidently quite fresh. It rained hard this afternoon, as you know, and my patients were the only people who called. It must have been the case, then, that the man in the waiting-room had, for some unknown reason, while I was busy with the other, ascended to the room of my resident patient. Nothing has been touched or taken, but there were the footprints to prove that the intrusion was an undoubted fact.

“Mr. Blessington seemed more excited over the matter than I should have thought possible, though of course it was enough to disturb anybody’s peace of mind. He actually sat crying in an arm-chair, and I could hardly get him to speak coherently. It was his suggestion that I should come round to you, and of course I at once saw the propriety of it, for certainly the incident is a very singular one, though he appears to completely overtake its importance. If you would only come back with me in my brougham, you would at least be able to soothe him, though I can hardly hope that you will be able to explain this remarkable occurrence.”

Sherlock Holmes had listened to this long narrative with an intentness which showed me that his interest was keenly aroused. His face was as impassive as ever, but his lids had drooped more heavily over his eyes, and his smoke had curled up more thickly from his pipe to emphasize each curious episode in the doctor’s tale. As our visitor concluded, Holmes sprang up without a word, handed me my hat, picked his own from the table, and followed Dr. Trevelyan to the door. Within a quarter of an hour we had been dropped at the door of the physician’s residence in Brook Street, one of those sombre, flat-faced houses which one associates with a West-End practice. A small page admitted us, and we began at once to ascend the broad, well-carpeted stair.

But a singular interruption brought us to a standstill. The light at the top was suddenly whisked out, and from the darkness came a reedy, quivering voice.

“I have a pistol,” it cried. “I give you my word that I’ll fire if you come any nearer.”

“This really grows outrageous, Mr. Blessington,” cried Dr. Trevelyan.

“Oh, then it is you, doctor,” said the voice, with a great heave of relief. “But those other gentlemen, are they what they pretend to be?”

We were conscious of a long scrutiny out of the darkness.

“Yes, yes, it’s all right,” said the voice at last. “You can come up, and I am sorry if my precautions have annoyed you.”

He relit the stair gas as he spoke, and we saw before us a singular-looking man, whose appearance, as well as his voice, testified to his jangled nerves. He was very fat, but had apparently at some time been much fatter, so that the skin hung about his face in loose pouches, like the cheeks of a blood-hound. He was of a sickly color, and his thin, sandy hair seemed to bristle up with the intensity of his emotion. In his hand he held a pistol, but he thrust it into his pocket as we advanced.

“Good-evening, Mr. Holmes,” said he. “I am sure I am very much obliged to you for coming round. No one ever needed your advice more than I do. I suppose that Dr. Trevelyan has told you of this most unwarrantable intrusion into my rooms.”

“Quite so,” said Holmes. “Who are these two men Mr. Blessington, and why do they wish to molest you?”

“Well, well,” said the resident patient, in a nervous fashion, “of course it is hard to say that. You can hardly expect me to answer that, Mr. Holmes.”

“Do you mean that you don’t know?”

“Come in here, if you please. Just have the kindness to step in here.”

He led the way into his bedroom, which was large and comfortably furnished.

“You see that,” said he, pointing to a big black box at the end of his bed. “I have never been a very rich man, Mr. Holmes—never made but one investment in my life, as Dr. Trevelyan would tell you. But I don’t believe in bankers. I would never trust a banker, Mr. Holmes. Between ourselves, what little I have is in that box, so you can understand what it means to me when unknown people force themselves into my rooms.”

Holmes looked at Blessington in his questioning way and shook his head.

“I cannot possibly advise you if you try to deceive me,” said he.

“But I have told you everything.”

Holmes turned on his heel with a gesture of disgust. “Good-night, Dr. Trevelyan,” said he.

“And no advice for me?” cried Blessington, in a breaking voice.

“My advice to your, sir, is to speak the truth.”

A minute later we were in the street and walking for home. We had crossed Oxford Street and were half way down Harley Street before I could get a word from my companion.

“Sorry to bring you out on such a fool’s errand, Watson,” he said at last. “It is an interesting case, too, at the bottom of it.”

“I can make little of it,” I confessed.

“Well, it is quite evident that there are two men—more, perhaps, but at least two—who are determined for some reason to get at this fellow Blessington. I have no doubt in my mind that both on the first and on the second occasion that young man penetrated to Blessington’s room, while his confederate, by an ingenious device, kept the doctor from interfering.”

“And the catalepsy?”

“A fraudulent imitation, Watson, though I should hardly dare to hint as much to our specialist. It is a very easy complaint to imitate. I have done it myself.”

“And then?”

“By the purest chance Blessington was out on each occasion. Their reason for choosing so unusual an hour for a consultation was obviously to insure that there should be no other patient in the waiting-room. It just happened, however, that this hour coincided with Blessington’s constitutional, which seems to show that they were not very well acquainted with his daily routine. Of course, if they had been merely after plunder they would at least have made some attempt to search for it. Besides, I can read in a man’s eye when it is his own skin that he is frightened for. It is inconceivable that this fellow could have made two such vindictive enemies as these appear to be without knowing of it. I hold it, therefore, to be certain that he does know who these men are, and that for reasons of his own he suppresses it. It is just possible that to-morrow may find him in a more communicative mood.”

“Is there not one alternative,” I suggested, “grotesquely improbably, no doubt, but still just conceivable? Might the whole story of the cataleptic Russian and his son be a concoction of Dr. Trevelyan’s, who has, for his own purposes, been in Blessington’s rooms?”

I saw in the gaslight that Holmes wore an amused smile at this brilliant departure of mine.