As soon as I was alone, I commenced my investigations with a rather desperate hope of eliciting some startling and unsuspected facts. I opened the drawer and taking from it the two pieces of reed and the shattered remains of the spectacles, laid them on the table. The repairs that Thorndyke had contemplated in the case of the spectacles, had not been made. Apparently they had not been necessary. The battered wreck that lay before me, just as we had found it, had evidently furnished the necessary information; for, since Thorndyke was in possession of a portrait of Mr. Graves, it was clear that he had succeeded in identifying him so far as to get into communication with some one who had known him intimately.
The circumstance should have been encouraging. But somehow it was not. What was possible to Thorndyke was, theoretically, possible to me—or to anyone else. But the possibility did not realize itself in practice. There was the personal equation. Thorndyke's brain was not an ordinary brain. Facts of which his mind instantly perceived the relation remained to other people unconnected and without meaning. His powers of observation and rapid inference were almost incredible, as I had noticed again and again, and always with undiminished wonder. He seemed to take in everything at a single glance and in an instant to appreciate the meaning of everything that he had seen.
Here was a case in point. I had myself seen all that he had seen, and, indeed, much more; for I had looked on the very people and witnessed their actions, whereas he had never set eyes on any of them. I had examined the little handful of rubbish that he had gathered up so carefully, and would have flung it back under the grate without a qualm. Not a glimmer of light had I perceived in the cloud of mystery, nor even a hint of the direction in which to seek enlightenment. And yet Thorndyke had, in some incomprehensible manner, contrived to piece together facts that I had probably not even observed, and that so completely that he had already, in these few days, narrowed down the field of inquiry to quite a small area.
From these reflections I returned to the objects on the table. The spectacles, as things of which I had some expert knowledge, were not so profound a mystery to me. A pair of spectacles might easily afford good evidence for identification; that I perceived clearly enough. Not a ready-made pair, picked up casually at a shop, but a pair constructed by a skilled optician to remedy a particular defect of vision and to fit a particular face. And such were the spectacles before me. The build of the frames was peculiar; the existence of a cylindrical lens—which I could easily make out from the remaining fragments—showed that one glass had been cut to a prescribed shape and almost certainly ground to a particular formula, and also that the distance between centres must have been carefully secured. Hence these spectacles had an individual character. But it was manifestly impossible to inquire of all the spectacle-makers in Europe—for the glasses were not necessarily made in England. As confirmation the spectacles might be valuable; as a starting-point they were of no use at all.
From the spectacles I turned to the pieces of reed. These were what had given Thorndyke his start. Would they give me a leading hint too? I looked at them and wondered what it was that they had told Thorndyke. The little fragment of the red paper label had a dark-brown or thin black border ornamented with a fret-pattern, and on it I detected a couple of tiny points of gold like the dust from leaf-gilding. But I learned nothing from that. Then the shorter piece of reed was artificially hollowed to fit on the longer piece. Apparently it formed a protective sheath or cap. But what did it protect? Presumably a point or edge of some kind. Could this be a pocket-knife of any sort, such as a small stencil-knife? No; the material was too fragile for a knife-handle. It could not be an etching-needle for the same reason; and it was not a surgical appliance—at least it was not like any surgical instrument that was known to me.
I turned it over and over and cudgelled my brains; and then I had a brilliant idea. Was it a reed pen of which the point had been broken off? I knew that reed pens were still in use by draughtsmen of decorative leanings with an affection for the "fat line." Could any of our friends be draughtsmen? This seemed the most probable solution of the difficulty, and the more I thought about it the more likely it seemed. Draughtsmen usually sign their work intelligibly, and even when they use a device instead of a signature their identity is easily traceable. Could it be that Mr. Graves, for instance, was an illustrator, and that Thorndyke had established his identity by looking through the works of all the well-known thick-line draughtsmen?
This problem occupied me for the rest of the day. My explanation did not seem quite to fit Thorndyke's description of his methods; but I could think of no other. I turned it over during my solitary lunch; I meditated on it with the aid of several pipes in the afternoon; and having refreshed my brain with a cup of tea, I went forth to walk in the Temple gardens—which I was permitted to do without breaking my parole—to think it out afresh.
The result was disappointing. I was basing my reasoning on the assumption that the pieces of reed were parts of a particular appliance, appertaining to a particular craft; whereas they might be the remains of something quite different, appertaining to a totally different craft or to no craft at all. And in no case did they point to any known individual or indicate any but the vaguest kind of search. After pacing the pleasant walks for upwards of two hours, I at length turned back towards our chambers, where I arrived as the lamp-lighter was just finishing his round.
My fruitless speculations had left me somewhat irritable. The lighted windows that I had noticed as I approached had given me the impression that Thorndyke had returned. I had intended to press him for a little further information. When, therefore, I let myself into our chambers and found, instead of my colleague, a total stranger—and only a back view at that—I was disappointed and annoyed.
The stranger was seated by the table, reading a large document that looked like a lease. He made no movement when I entered, but when I crossed the room and wished him "Good evening," he half rose and bowed silently. It was then that I first saw his face, and a mighty start he gave me. For one moment I actually thought he was Mr. Weiss, so close was the resemblance, but immediately I perceived that he was a much smaller man.
I sat down nearly opposite and stole an occasional furtive glance at him. The resemblance to Weiss was really remarkable. The same flaxen hair, the same ragged beard and a similar red nose, with the patches of acne rosacea spreading to the adjacent cheeks. He wore spectacles, too, through which he took a quick glance at me now and again, returning immediately to his document.
After some moments of rather embarrassing silence, I ventured to remark that it was a mild evening; to which he assented with a sort of Scotch "Hm—hm" and nodded slowly. Then came another interval of silence, during which I speculated on the possibility of his being a relative of Mr. Weiss and wondered what the deuce he was doing in our chambers.
"Have you an appointment with Dr. Thorndyke?" I asked, at length.
He bowed solemnly, and by way of reply—in the affirmative, as I assumed—emitted another "hm—hm."
I looked at him sharply, a little nettled by his lack of manners; whereupon he opened out the lease so that it screened his face, and as I glanced at the back of the document, I was astonished to observe that it was shaking rapidly.
The fellow was actually laughing! What he found in my simple question to cause him so much amusement I was totally unable to imagine. But there it was. The tremulous movements of the document left me in no possible doubt that he was for some reason convulsed with laughter.
It was extremely mysterious. Also, it was rather embarrassing. I took out my pocket file and began to look over my notes. Then the document was lowered and I was able to get another look at the stranger's face. He was really extraordinarily like Weiss. The shaggy eyebrows, throwing the eye-sockets into shadow, gave him, in conjunction with the spectacles, the same owlish, solemn expression that I had noticed in my Kennington acquaintance; and which, by the way, was singularly out of character with the frivolous behaviour that I had just witnessed.
From time to time as I looked at him, he caught my eye and instantly averted his own, turning rather red. Apparently he was a shy, nervous man, which might account for his giggling; for I have noticed that shy or nervous people have a habit of smiling inopportunely and even giggling when embarrassed by meeting an over-steady eye. And it seemed my own eye had this disconcerting quality, for even as I looked at him, the document suddenly went up again and began to shake violently.
I stood it for a minute or two, but, finding the situation intolerably embarrassing, I rose, and brusquely excusing myself, went up to the laboratory to look for Polton and inquire at what time Thorndyke was expected home. To my surprise, however, on entering, I discovered Thorndyke himself just finishing the mounting of a microscopical specimen.
"Did you know that there is some one below waiting to see you?" I asked.
"Is it anyone you know?" he inquired.
"No," I answered. "It is a red-nosed, sniggering fool in spectacles. He has got a lease or a deed or some other sort of document which he has been using to play a sort of idiotic game of Peep-Bo! I couldn't stand him, so I came up here."
Thorndyke laughed heartily at my description of his client.
"What are you laughing at?" I asked sourly; at which he laughed yet more heartily and added to the aggravation by wiping his eyes.
"Our friend seems to have put you out," he remarked.
"He put me out literally. If I had stayed much longer I should have punched his head."
"In that case," said Thorndyke, "I am glad you didn't stay. But come down and let me introduce you."
"No, thank you. I've had enough of him for the present."
"But I have a very special reason for wishing to introduce you. I think you will get some information from him that will interest you very much; and you needn't quarrel with a man for being of a cheerful disposition."
"Cheerful be hanged!" I exclaimed. "I don't call a man cheerful because he behaves like a gibbering idiot."
To this Thorndyke made no reply but a broad and appreciative smile, and we descended to the lower floor. As we entered the room, the stranger rose, and, glancing in an embarrassed way from one of us to the other, suddenly broke out into an undeniable snigger. I looked at him sternly, and Thorndyke, quite unmoved by his indecorous behaviour, said in a grave voice:
"Let me introduce you, Jervis; though I think you have met this gentleman before."
"I think not," I said stiffly.
"Oh yes, you have, sir," interposed the stranger; and, as he spoke, I started; for the voice was uncommonly like the familiar voice of Polton.
I looked at the speaker with sudden suspicion. And now I could see that the flaxen hair was a wig; that the beard had a decidedly artificial look, and that the eyes that beamed through the spectacles were remarkably like the eyes of our factotum. But the blotchy face, the bulbous nose and the shaggy, overhanging eyebrows were alien features that I could not reconcile with the personality of our refined and aristocratic-looking little assistant.
"Is this a practical joke?" I asked.
"No," replied Thorndyke; "it is a demonstration. When we were talking this morning it appeared to me that you did not realize the extent to which it is possible to conceal identity under suitable conditions of light. So I arranged, with Polton's rather reluctant assistance, to give you ocular evidence. The conditions are not favourable—which makes the demonstration more convincing. This is a very well-lighted room and Polton is a very poor actor; in spite of which it has been possible for you to sit opposite him for several minutes and look at him, I have no doubt, very attentively, without discovering his identity. If the room had been lighted only with a candle, and Polton had been equal to the task of supporting his make-up with an appropriate voice and manner, the deception would have been perfect."
"I can see that he has a wig on, quite plainly," said I.
"Yes; but you would not in a dimly lighted room. On the other hand, if Polton were to walk down Fleet Street at mid-day in this condition, the make-up would be conspicuously evident to any moderately observant passer-by. The secret of making up consists in a careful adjustment to the conditions of light and distance in which the make-up is to be seen. That in use on the stage would look ridiculous in an ordinary room; that which would serve in an artificially lighted room would look ridiculous out of doors by daylight."
"Is any effective make-up possible out of doors in ordinary daylight?" I asked.
"Oh, yes," replied Thorndyke. "But it must be on a totally different scale from that of the stage. A wig, and especially a beard or moustache, must be joined up at the edges with hair actually stuck on the skin with transparent cement and carefully trimmed with scissors. The same applies to eyebrows; and alterations in the colour of the skin must be carried out much more subtly. Polton's nose has been built up with a small covering of toupée-paste, the pimples on the cheeks produced with little particles of the same material; and the general tinting has been done with grease-paint with a very light scumble of powder colour to take off some of the shine. This would be possible in outdoor make-up, but it would have to be done with the greatest care and delicacy; in fact, with what the art-critics call 'reticence.' A very little make-up is sufficient and too much is fatal. You would be surprised to see how little paste is required to alter the shape of the nose and the entire character of the............