“Very clearly.”

“Now what could Jonathan Small do? He could only continue to keep a secret watch upon the efforts made to find the treasure. Possibly he leaves England and only comes back at intervals. Then comes the discovery of the garret, and he is instantly informed of it. We again trace the presence of some confederate in the household. Jonathan, with his wooden leg, is utterly unable to reach the lofty room of Bartholomew Sholto. He takes with him, however, a rather curious associate, who gets over this difficulty but dips his naked foot into creosote, whence come Toby, and a six-mile limp for a half-pay officer with a damaged tendo Achillis.”

“But it was the associate and not Jonathan who committed the crime.”

“Quite so. And rather to Jonathan’s disgust, to judge by the way he stamped about when he got into the room. He bore no grudge against Bartholomew Sholto and would have preferred if he could have been simply bound and gagged. He did not wish to put his head in a halter. There was no help for it, however: the savage instincts of his companion had broken out, and the poison had done its work: so Jonathan Small left his record, lowered the treasure-box treasure to the ground, and followed it himself. That was the train of events as far as I can decipher them. Of course, as to his personal appearance, he must be middle-aged and must be sunburned after serving his time in such an oven as the Andamans. His height is readily calculated from the length of his stride, and we know that he was bearded. His hairiness was the one point which impressed itself upon Thaddeus Sholto when he saw him at the window. I don’t know that there is anything else.”

“The associate?”

“Ah, well, there is no great mystery in that. But you will know all about it soon enough. How sweet the morning air is! See how that one little cloud floats like a pink feather from some gigantic flamingo. Now the red rim of the sun pushes itself over the London cloud-bank. It shines on a good many folk, but on none, I dare bet, who are on a stranger errand than you and I. How small we feel with our petty ambitions and strivings in the presence of the great elemental forces of Nature! Are you well up in your Jean Paul?”

“Fairly so. I worked back to him through Carlyle.”

“That was like following the brook to the parent lake. He makes one curious but profound remark. It is that the chief proof of man’s real greatness lies in his perception of his own smallness. It argues, you see, a power of comparison and of appreciation which is in itself a proof of nobility. There is much food for thought in Richter. You have not a pistol, have you?”

“I have my stick.”

“It is just possible that we may need something of the sort if we get to their lair. Jonathan I shall leave to you, but if the other turns nasty I shall shoot him dead.”

He took out his revolver as he spoke, and, having loaded two of the chambers, he put it back into the right-hand pocket of his jacket.

Twice already in his career had Holmes helped him to attain success, his own sole reward being the intellectual joy of the problem. For this reason the affection and respect of the Scotchman for his amateur colleague were profound, and he showed them by the frankness with which he consulted Holmes in every difficulty. Mediocrity knows nothing higher than itself; but talent instantly recognizes genius, and MacDonald had talent enough for his profession to enable him to perceive that there was no humiliation in seeking the assistance of one who already stood alone in Europe, both in his gifts and in his experience. Holmes was not prone to friendship, but he was tolerant of the big Scotchman, and smiled at the sight of him.

“You are an early bird, Mr. Mac,” said he. “I wish you luck with your worm. I fear this means that there is some mischief afoot.”

“If you said ‘hope’ instead of ‘fear,’ it would be nearer the truth, I’m thinking, Mr. Holmes,” the inspector answered, with a knowing grin. “Well, maybe a wee nip would keep out the raw morning chill. No, I won’t smoke, I thank you. I’ll have to be pushing on my way; for the early hours of a case are the precious ones, as no man knows better than your own self. But — but —”

The inspector had stopped suddenly, and was staring with a look of absolute amazement at a paper upon the table. It was the sheet upon which I had scrawled the enigmatic message.

“Douglas!” he stammered. “Birlstone! What’s this, Mr. Holmes? Man, it’s witchcraft! Where in the name of all that is wonderful did you get those names?”

“It is a cipher that Dr. Watson and I have had occasion to solve. But why — what’s amiss with the names?”

The inspector looked from one to the other of us in dazed astonishment. “Just this,” said he, “that Mr. Douglas of Birlstone Manor House was horribly murdered last night!”

It was one of those dramatic moments for which my friend existed. It would be an overstatement to say that he was shocked or even excited by the amazing announcement. Without having a tinge of cruelty in his singular composition, he was undoubtedly callous from long overstimulation. Yet, if his emotions were dulled, his intellectual perceptions were exceedingly active. There was no trace then of the horror which I had myself felt at this curt declaration; but his face showed rather the quiet and interested composure of the chemist who sees the crystals falling into position from his oversaturated solution.

“Remarkable!” said he. “Remarkable!”

“You don’t seem surprised.”

“Interested, Mr. Mac, but hardly surprised. Why should I be surprised? I receive an anonymous communication from a quarter which I know to be important, warning me that danger threatens a certain person. Within an hour I learn that this danger has actually materialized and that the person is dead. I am interested; but, as you observe, I am not surprised.”