"Yes; and I think we can distinguish between the two possibilities. For, if he only passes the factory, the dust will be on the outside of the hat only; the inside will be protected by his head. But if he is engaged in the works, the dust will be inside, too, as the hat will hang on a peg in the dust-laden atmosphere, and his head will also be powdered, and so convey the dust to the inside."

He turned the hat over once more, and as I brought the powerful lens to bear upon the dark lining, I could clearly distinguish a number of white particles in the interstices of the fabric.

"The powder is on the inside, too," I said.

He took the lens from me, and, having verified my statement, proceeded with the examination. "You notice," he said, "that the leather head-lining is stained with grease, and this staining is more pronounced at the sides and back. His hair, therefore, is naturally greasy, or he greases it artificially; for if the staining were caused by perspiration, it would be most marked opposite the forehead."

He peered anxiously into the interior of the hat, and eventually turned down the head-lining; and immediately there broke out upon his face a gleam of satisfaction.

"Ha!" he exclaimed. "This is a stroke of luck. I was afraid our neat and orderly friend had defeated us with his brush. Pass me the small dissecting forceps, Jervis."

I handed him the instrument, and he proceeded to pick out daintily from the space behind the head-lining some half a dozen short pieces of hair, which he laid, with infinite tenderness, on a sheet of white paper.

"There are several more on the other side," I said, pointing them out to him.

"Yes, but we must leave some for the police," he answered, with a smile. "They must have the same chance as ourselves, you know."

"But surely," I said, as I bent down over the paper, "these are pieces of horsehair!"

"I think not," he replied; "but the microscope will show. At any rate, this is the kind of hair I should expect to find with a head of that shape."

"Well, it is extraordinarily coarse," said I, "and two of the hairs are nearly white."

"Yes; black hairs beginning to turn grey. And now, as our preliminary survey has given such encouraging results, we will proceed to more exact methods; and we must waste no time, for we shall have the police here presently to rob us of our treasure."

He folded up carefully the paper containing the hairs, and taking the hat in both hands, as though it were some sacred vessel, ascended with me to the laboratory on the next floor.

"Now, Polton," he said to his laboratory assistant, "we have here a specimen for examination, and time is precious. First of all, we want your patent dust-extractor."

The little man bustled to a cupboard and brought forth a singular appliance, of his own manufacture, somewhat like a miniature vacuum cleaner. It had been made from a bicycle foot-pump, by reversing the piston-valve, and was fitted with a glass nozzle and a small detachable glass receiver for collecting the dust, at the end of a flexible metal tube.

"We will sample the dust from the outside first," said Thorndyke, laying the hat upon the work-bench. "Are you ready, Polton?"

The assistant slipped his foot into the stirrup of the pump and worked the handle vigorously, while Thorndyke drew the glass nozzle slowly along the hat-brim under the curled edge. And as the nozzle passed along, the white coating vanished as if by magic, leaving the felt absolutely clean and black, and simultaneously the glass receiver became clouded over with a white deposit.

"We will leave the other side for the police," said Thorndyke, and as Polton ceased pumping he detached the receiver, and laid it on a sheet of paper, on which he wrote in pencil, "Outside," and covered it with a small bell-glass. A fresh receiver having been fitted on, the nozzle was now drawn over the silk lining of the hat, and then through the space behind the leather head-lining on one side; and now the dust that collected in the receiver was much of the usual grey colour and fluffy texture, and included two more hairs.

"And now," said Thorndyke, when the second receiver had been detached and set aside, "we want a mould of the inside of the hat, and we must make it by the quickest method; there is no time to make a paper mould. It is a most astonishing head," he added, reaching down from a nail a pair of large callipers, which he applied to the inside of the hat; "six inches and nine-tenths long by six and six-tenths broad, which gives us"—he made a rapid calculation on a scrap of paper—"the extraordinarily high cephalic index of 95.6."

Polton now took possession of the hat, and, having stuck a band of wet tissue-paper round the inside, mixed a small bowl of plaster-of-Paris, and very dexterously ran a stream of the thick liquid on to the tissue-paper, where it quickly solidified. A second and third application resulted in a broad ring of solid plaster an inch thick, forming a perfect mould of the inside of the hat, and in a few minutes the slight contraction of the plaster in setting rendered the mould sufficiently loose to allow of its being slipped out on to a board to dry.

We were none too soon, for even as Polton was removing the mould, the electric bell, which I had switched on to the laboratory, announced a visitor, and when I went down I found a police-sergeant waiting with a note from Superintendent Miller, requesting the immediate transfer of the hat.

"The next thing to be done," said Thorndyke, when the sergeant had departed with the bandbox, "is to measure the thickness of the hairs, and make a transverse section of one, and examine the dust. The section we will leave to Polton—as time is an object, Polton, you had better imbed the hair in thick gum and freeze it hard on the microtome, and be very careful to cut the section at right angles to the length of the hair—meanwhile, we will get to work with the microscope."

The hairs proved on measurement to have the surprisingly large diameter of ⅟₁₃₅ of an inch—fully double that of ordinary hairs, although they were unquestionably human. As to the white dust, it presented a problem that even Thorndyke was unable to solve. The application of reagents showed it to be carbonate of lime, but its source for a time remained a mystery.

"The larger particles," said Thorndyke, with his eye applied to the microscope, "appear to be transparent, crystalline, and distinctly laminated in structure. It is not chalk, it is not whiting, it is not any kind of cement. What can it be?"

"Could it be any kind of shell?" I suggested. "For instance—"

"Of course!" he exclaimed, starting up; "you have hit it, Jervis, as you always do. It must be mother-of-pearl. Polton, give me a pearl shirt-button out of your oddments box."

The button was duly produced by the thrifty Polton, dropped into an agate mortar, and speedily reduced to powder, a tiny pinch of which Thorndyke placed under the microscope.

"This powder," said he, "is, naturally, much coarser than our specimen, but the identity of character is unmistakable. Jervis, you are a treasure. Just look at it."

I glanced down the microscope, and then pulled out my watch. "Yes," I said, "there is no doubt about it, I think; but I must be off. Anstey urged me to be in court by 11.30 at the latest."

With infinite reluctance I collected my notes and papers and departed, leaving Thorndyke diligently copying addresses out of the Post Office Directory.

My business at the court detained me the whole of the day, and it was near upon dinner-time when I reached our chambers. Thorndyke had not yet come in, but he arrived half an hour later, tired and hungry, and not very communicative.

"What have I done?" he repeated, in answer to my inquiries. "I have walked miles of dirty pavement, and I have visited every pearl-shell cutter's in London, with one exception, and I have not found what I was looking for. The one mother-of-pearl factory that remains, however, is the most likely, and I propose to look in there to-morrow morning. Meanwhile, we have completed our data, with Polton's assistance. Here is a tracing of our friend's skull taken from the mould; you see it is an extreme type of brachycephalic skull, and markedly unsymmetrical. Here is a transverse section of his hair, which is quite circular—unlike yours or mine, which would be oval. We have the mother-of-pearl dust from the outside of the hat, and from the inside similar dust mixed with various fibres and a few granules of rice starch. Those are our data."



"Supposing the hat should not be that of the burglar after all?" I suggested.

"That would be annoying. But I think it is his, and I think I can guess at the nature of the art treasures that were stolen."

"And you don't intend to enlighten me?"

"My dear fellow," he replied, "you have all the data. Enlighten yourself by the exercise of your own brilliant faculties. Don't give way to mental indolence."

I endeavoured, from the facts in my possession, to construct the personality of the mysterious burglar, and failed utterly; nor was I more successful in my endeavour to guess at the nature of the stolen property; and it was not until the following morning, when we had set out on our quest and were approaching Limehouse, that Thorndyke would revert to the subject.

"We are now," he said, "going to the factory of Badcomb and Martin, shell importers and cutters, in the West India Dock Road. If I don't find my man there, I shall hand the facts over to the police, and waste no more time over the case."

"What is your man like?" I asked.

"I am looking for an elderly Japanese, wearing a new hat or, more probably, a cap, and having a bruise on his right cheek or temple. I am also looking for a cab-yard; but here we are at the works, and as it is now close on the dinner-hour, we will wait and see the hands come out before making any inquiries."

We walked slowly past the tall, blank-faced building, and were just turning to re-pass it when a steam whistle sounded, a wicket opened in the main gate, and a stream of workmen—each powdered with white, like a miller—emerged into the street. We halted to watch the men as they came out, one by one, through the wicket, and turned to the right or left towards their homes or some adjacent coffee-shop; but none of them answered to the description that my friend had given.

The outcoming stream grew thinner, and at length ceased; the wicket was shut with a bang, and once more Thorndyke's quest appeared to have failed.

"Is that all of them, I wonder?" he said, with a shade of disappointment in his tone; but even as he spoke the wicket opened again, and a leg protruded. The leg was followed by a back and a curious globular head, covered with iron-grey hair, and surmounted by a cloth cap, the whole appertaining to a short, very thick-set man, who remained thus, evidently talking to someone inside.

Suddenly he turned his head to look across the street; and immediately I recognized, by the pallid yellow complexion and narrow eye-slits, the physiognomy of a typical Japanese. The man remained talking for nearly another minute; then, drawing out his other leg, he turned towards us; and now I perceived that the right side of his face, over the prominent cheekbone, was discoloured as though by a severe bruise.

"Ha!" said Thorndyke, turning round sharply as the man approached, "either this is our man or it is an incredible coincidence." He walked away at a moderate pace, allowing the Japanese to overtake us slowly, and when the man had at length passed us, he increased his speed somewhat, so as to maintain the distance.

Our friend stepped along briskly, and presently turned up a side street, whither we followed at a respectful distance, Thorndyke holding open his pocket-book, and appearing to engage me in an earnest discussion, but keeping a sharp eye on his quarry.

"There he goes!" said my colleague, as the man suddenly disappeared—"the house with the green window-sashes. That will be number thirteen."

It was; and, having verified the fact, we passed on, and took the next turning that would lead us back to the main road.

Some twenty minutes later, as we were strolling past the door of a coffee-shop, a man came out, and began to fill his pipe with an air of leisurely satisfaction. His hat and clothes were powdered with white like those of the workmen whom we had seen come out of the factory. Thorndyke accosted him.

"Is that a flour-mill up the road there?"

"No, sir; pearl-shell. I work there myself."

"Pearl-shell, eh?" said Thorndyke. "I suppose that will be an industry that will tend to attract the aliens. Do you find it so?"

"No, sir; not at all. The work's too hard. We've only got one foreigner in the place, and he ain't an alien—he's a Jap."

"A Jap!" exclaimed Thorndyke. "Really. Now, I wonder if that would chance to be our old friend Kotei—you remember Kotei?" he added, turning to me.

"No, sir; this man's name is Futashima. There was another Jap in the works, a chap named Itu, a pal of Futashima's, but he's left."

"Ah! I don't know either of them. By the way, usen't there to be a cab-yard just about here?"

"There's a yard up Rankin Street where they keep vans and one or two cabs. That chap Itu works there now. Taken to horseflesh. Drives a van sometimes. Queer start for a Jap."

"Very." Thorndyke thanked the man for his information, and we sauntered on towards Rankin Street. The yard was at this time nearly deserted, being occupied only by an ancient and crazy four-wheeler and a very shabby hansom.

"Curious old houses, these that back on to the yard," said Thorndyke, strolling into the enclosure. "That timber gable, now," pointing to a house, from a window of which a man was watching us suspiciously, "is quite an interesting survival."

"What's your business, mister?" demanded the man in a gruff tone.

"We are just having a look at these quaint old houses," replied Thorndyke, edging towards the back of the hansom, and opening his pocket-book, as though to make a sketch.

"Well, you can see 'em from outside," said the man.



"So we can," said Thorndyke suavely, "but not so well, you know."

At this moment the pocket-book slipped from his hand and fell, scattering a number of loose papers about the ground under the hansom, and our friend at the window laughed joyously.

"No hurry," murmured Thorndyke, as I stooped to help him to gather up the papers—which he did in the most surprisingly slow and clumsy manner. "It is fortunate that the ground is dry." He stood up with the rescued papers in his hand, and, having scribbled down a brief note, slipped the book in his pocket.

"Now you'd better mizzle," observed the man at the window.

"Thank you," replied Thorndyke, "I think we had;" and, with a pleasant nod at the custodian, he proceeded to adopt the hospitable suggestion.

* * * * *

"Mr. Marchmont has been here, sir, with Inspector Badger and another gentleman," said Polton, as we entered our chambers. "They said they would call again about five."

"Then," replied Thorndyke, "as it is now a quarter to five, there is just time for us to have a wash while you get the tea ready. The particles that float in the atmosphere of Limehouse are not all mother-of-pearl."

Our visitors arrived punctually, the third gentleman being, as we had supposed, Mr. Solomon Loewe. Inspector Badger I had not seen before, and he now impressed me as showing a tendency to invert the significance of his own name by endeavouring to "draw" Thorndyke; in which, however, he was not brilliantly successful.

"I hope you are not going to disappoint Mr. Loewe, sir," he commenced facetiously. "You have had a good look at that hat—we saw your marks on it—and he expects that you will be able to point us out the man, name and address all complete." He grinned patronizingly at our unfortunate client, who was looking even more haggard and worn than he had been on the previous morning.

"Have you—have you made any—discovery?" Mr Loewe asked with pathetic eagerness.

"We examined the hat very carefully, and I think we have established a few facts of some interest."

"Did your examination of the hat furnish any information as to the nature of the stolen property, sir?" inquired the humorous inspector.

Thorndyke turned to the officer with a face as expressionless as a wooden mask.

"We thought it possible," said he, "that it might consist of works of Japanese art, such as netsukes, paintings, and such like."

Mr. Loewe uttered an exclamation of delighted astonishment, and the facetiousness faded rather suddenly from the inspector's countenance.

"I don't know how you can have found out," said he. "We have only known it half an hour ourselves, and the wire came direct from Florence to Scotland Yard."

"Perhaps you can describe the thief to us," said Mr. Loewe, in the same eager tone.

"I dare say the inspector can do that," replied Thorndyke.

"Yes, I think so," replied the officer. "He is a short strong man, with a dark complexion and hair turning grey. He has a very round head, and he is probably a workman engaged at some whiting or cement works. That is all we know; if you can tell us any more, sir, we shall be very glad to hear it."

"I can only offer a few suggestions," said Thorndyke, "but perhaps you may find them useful. For instance, at 13, Birket Street, Limehouse, there is living a Japanese gentleman named Futashima, who works at Badcomb and Martin's mother-of-pearl factory. I think that if you were to call on him, and let him try on the hat that you have, it would probably fit him."

The inspector scribbled ravenously in his notebook, and Mr. Marchmont—an old admirer of Thorndyke's—leaned back in his chair, chuckling softly and rubbing his hands.

"Then," continued my colleague, "there is in Rankin Street, Limehouse, a cab-yard, where another Japanese gentleman named Itu is employed. You might find out where Itu was the night before last; and if you should chance to see a hansom cab there—number 22,481—have a good look at it. In the frame of the number-plate you will find six small holes. Those holes may have held brads, and the brads may have held a false number card. At any rate, you might ascertain where that cab was at 11.30 the night before last. That is all I have to suggest."

Mr. Loewe leaped from his chair. "Let us go—now—at once—there is no time to be lost. A thousand thanks to you, doctor—a thousand million thanks. Come!"

He seized the inspector by the arm and forcibly dragged him towards the door, and a few moments later we heard the footsteps of our visitors clattering down the stairs.

"It was not worth while to enter into explanations with them," said Thorndyke, as the footsteps died away—"nor perhaps with you?"

"On the contrary," I replied, "I am waiting to be fully enlightened."

"Well, then, my inferences in this case were perfectly simple ones, drawn from well-known anthropological facts. The human race, as you know, is roughly divided into three groups—the black, the white, and the yellow races. But apart from the variable quality of colour, these races have certain fixed characteristics associated especially with the shape of the skull, of the eye-sockets, and the hair.

"Thus in the black races the skull is long and narrow, the eye-sockets are long and narrow, and the hair is flat and ribbon-like, and usually coiled up like a watch-spring. In the white races the skull is oval, the eye-sockets are oval, and the hair is slightly flattened or oval in section, and tends to be wavy; while in the yellow or Mongol races, the skull is short and round, the eye-sockets are short and round, and the hair is straight and circular in section. So that we have, in the black races, long skull, long orbits, flat hair; in the white races, oval skull, oval orbits, oval hair; and in the yellow races, round skull, round orbits, round hair.

"Now, in this case we had to deal with a very short round skull. But you cannot argue from races to individuals; there are many short-skulled Englishmen. But when I found, associated with that skull, hairs which were circular in section, it became practically certain that the individual was a Mongol of some kind. The mother-of-pearl dust and the granules of rice starch from the inside of the hat favoured this view, for the pearl-shell industry is specially connected with China and Japan, while starch granules from the hat of an Englishman would probably be wheat starch.

"Then as to the hair: it was, as I mentioned to you, circular in section, and of very large diameter. Now, I have examined many thousands of hairs, and the thickest that I have ever seen came from the heads of Japanese; but the hairs from this hat were as thick as any of them. But the hypothesis that the burglar was a Japanese received confirmation in various ways. Thus, he was short, though strong and active, and the Japanese are the shortest of the Mongol races, and very strong and active.

"Then his remarkable skill in handling the powerful caretaker—a retired police-sergeant—suggested the Japanese art of ju-jitsu, while the nature of the robbery was consistent with the value set by the Japanese on works of art. Finally, the fact that only a particular collection was taken, suggested a special, and probably national, character in the things stolen, while their portability—you will remember that goods of the value of from eight to twelve thousand pounds were taken away in two hand-packages—was much more consistent with Japanese than Chinese works, of which the latter tend rather to be bulky and ponderous. Still, it was nothing but a bare hypothesis until we had seen Futashima—and, indeed, is no more now. I may, after all, be entirely mistaken."

He was not, however; and at this moment there reposes in my drawing-room an ancient netsuke, which came as a thank-offering from Mr. Isaac Loewe on the recovery of the booty from a back room in No. 13, Birket Street, Limehouse. The treasure, of course, was given in the first place to Thorndyke, but transferred by him to my wife on the pretence that but for my suggestion of shell-dust the robber would never have been traced. Which is, on the face of it, preposterous.



IV

THE BLUE SEQUIN

Thorndyke stood looking up and down the platform with anxiety that increased as the time drew near for the departure of the train.

"This is very unfortunate," he said, reluctantly stepping into an empty smoking compartment as the guard executed a flourish with his green flag. "I am afraid we have missed our friend." He closed the door, and, as the train began to move, thrust his head out of the window.

"Now I wonder if that will be he," he continued. "If so, he has caught the train by the skin of his teeth, and is now in one of the rear compartments."

The subject of Thorndyke's speculations was Mr. Edward Stopford, of the firm of Stopford and Myers, of Portugal Street, solicitors, and his connection with us at present arose out of a telegram that had reached our chambers on the preceding evening. It was reply-paid, and ran thus:

"Can you come here to-morrow to direct defence? Important case. All costs undertaken by us.—STOPFORD AND MYERS."

Thorndyke's reply had been in the affirmative, and early on this present morning a further telegram—evidently posted overnight—had been delivered:

"Shall leave for Woldhurst by 8.25 from Charing Cross. Will call for you if possible.—EDWARD STOPFORD."

He had not called, however, and, since he was unknown personally to us both, we could not judge whether or not he had been among the passengers on the platform.

"It is most unfortunate," Thorndyke repeated, "for it deprives us of that preliminary consideration of the case which is so invaluable." He filled his pipe thoughtfully, and, having made a fruitless inspection of the platform at London Bridge, took up the paper that he had bought at the bookstall, and began to turn over the leaves, running his eye quickly down the columns, unmindful of the journalistic baits in paragraph or article.

"It is a great disadvantage," he observed, while still glancing through the paper, "to come plump into an inquiry without preparation—to be confronted with the details before one has a chance of considering the case in general terms. For instance—"

He paused, leaving the sentence unfinished, and as I looked up inquiringly I saw that he had turned over another page, and was now reading attentively.

"This looks like our case, Jervis," he said presently, handing me the paper and indicating a paragraph at the top of the page. It was quite brief, and was headed "Terrible Murder in Kent," the account being as follows:

"A shocking crime was discovered yesterday morning at the little town of Woldhurst, which lies on the branch line from Halbury Junction. The discovery was made by a porter who was inspecting the carriages of the train which had just come in. On opening the door of a first-class compartment, he was horrified to find the body of a fashionably-dressed woman stretched upon the floor. Medical aid was immediately summoned, and on the arrival of the divisional surgeon, Dr. Morton, it was ascertained that the woman had not been dead more than a few minutes.



"The state of the corpse leaves no doubt that a murder of a most brutal kind has been perpetrated, the cause of death being a penetrating wound of the head, inflicted with some pointed implement, which must have been used with terrible violence, since it has perforated the skull and entered the brain. That robbery was not the motive of the crime is made clear by the fact that an expensively fitted dressing-bag was found on the rack, and that the dead woman's jewellery, including several valuable diamond rings, was untouched. It is rumoured that an arrest has been made by the local police."

"A gruesome affair," I remarked, as I handed back the paper, "but the report does not give us much information."

"It does not," Thorndyke agreed, "and yet it gives us something to consider. Here is a perforating wound of the skull, inflicted with some pointed implement—that is, assuming that it is not a bullet wound. Now, what kind of implement would be capable of inflicting such an injury? How would such an implement be used in the confined space of a railway-carriage, and what sort of person would be in possession of such an implement? These are preliminary questions that are worth considering, and I commend them to you, together with the further problems of the possible motive—excluding robbery—and any circumstances other than murder which might account for the injury."

"The choice of suitable implements is not very great," I observed.

"It is very limited, and most of them, such as a plasterer's pick or a geological hammer, are associated with certain definite occupations. You have a notebook?"

I had, and, accepting the hint, I produced it and pursued my further reflections in silence, while my companion, with his notebook also on his knee, gazed steadily out of the window. And thus he remained, wrapped in thought, jotting down an entry now and again in his book, until the train slowed down at Halbury Junction, where we had to change on to a branch line.

As we stepped out, I noticed a well-dressed man hurrying up the platform from the rear and eagerly scanning the faces of the few passengers who had alighted. Soon he espied us, and, approaching quickly, asked, as he looked from one of us to the other:

"Dr. Thorndyke?"

"Yes," replied my colleague, adding: "And you, I presume, are Mr. Edward Stopford?"

The solicitor bowed. "This is a dreadful affair," he said, in an agitated manner. "I see you have the paper. A most shocking affair. I am immensely relieved to find you here. Nearly missed the train, and feared I should miss you."

"There appears to have been an arrest," Thorndyke began.

"Yes—my brother. Terrible business. Let us walk up the platform; our train won't start for a quarter of an hour yet."

We deposited our joint Gladstone and Thorndyke's travelling-case in an empty first-class compartment, and then, with the solicitor between us, strolled up to the unfrequented end of the platform.

"My brother's position," said Mr. Stopford, "fills me with dismay—but let me give you the facts in order, and you shall judge for yourself. This poor creature who has been murdered so brutally was a Miss Edith Grant. She was formerly an artist's model, and as such was a good deal employed by my brother, who is a painter—Harold Stopford, you know, A.R.A. now—"

"I know his work very well, and charming work it is."

"I think so, too. Well, in those days he was quite a youngster—about twenty—and he became very intimate with Miss Grant, in quite an innocent way, though not very discreet; but she was a nice respectable girl, as most English models are, and no one thought any harm. However, a good many letters passed between them, and some little presents, amongst which was a beaded chain carrying a locket, and in this he was fool enough to put his portrait and the inscription, 'Edith, from Harold.'

"Later on Miss Grant, who had a rather good voice, went on the stage, in the comic opera line, and, in consequence, her habits and associates changed somewhat; and, as Harold had meanwhile become engaged, he was naturally anxious to get his letters back, and especially to exchange the locket for some less compromising gift. The letters she eventually sent him, but refused absolutely to part with the locket.

"Now, for the last month Harold has been staying at Halbury, making sketching excursions into the surrounding country, and yesterday morning he took the train to Shinglehurst, the third station from here, and the one before Woldhurst.

"On the platform here he met Miss Grant, who had come down from London, and was going on to Worthing. They entered the branch train together, having a first-class compartment to themselves. It seems she was wearing his locket at the time, and he made another appeal to her to make an exchange, which she refused, as before. The discussion appears to have become rather heated and angry on both sides, for the guard and a porter at Munsden both noticed that they seemed to be quarrelling; but the upshot of the affair was that the lady snapped the chain, and tossed it together with the locket to my brother, and they parted quite amiably at Shinglehurst, where Harold got out. He was then carrying his full sketching kit, including a large holland umbrella, the lower joint of which is an ash staff fitted with a powerful steel spike for driving into the ground.

"It was about half-past ten when he got out at Shinglehurst; by eleven he had reached his pitch and got to work, and he painted steadily for three hours. Then he packed up his traps, and was just starting on his way back to the station, when he was met by the police and arrested.

"And now, observe the accumulation of circumstantial evidence against him. He was the last person seen in company with the murdered woman—for no one seems to have seen her after they left Munsden; he appeared to be quarrelling with her when she was last seen alive, he had a reason for possibly wishing for her death, he was provided with an implement—a spiked staff—capable of inflicting the injury which caused her death, and, when he was searched, there was found in his possession the locket and broken chain, apparently removed from her person with violence.

"Against all this is, of course, his known character—he is the gentlest and most amiable of men—and his subsequent conduct—imbecile to the last degree if he had been guilty; but, as a lawyer, I can't help seeing that appearances are almost hopelessly against him."

"We won't say 'hopelessly,'" replied Thorndyke, as we took our places in the carriage, "though I expect the police are pretty cocksure. When does the inquest open?"

"To-day at four. I have obtained an order from the coroner for you to examine the body and be present at the post-mortem."

"Do you happen to know the exact position of the wound?"

"Yes; it is a little above and behind the left ear—a horrible round hole, with a ragged cut or tear running from it to the side of the forehead."

"And how was the body lying?"

"Right along the floor, with the feet close to the off-side door."

"Was the wound on the head the only one?"

"No; there was a long cut or bruise on the right cheek—a contused wound the police surgeon called it, which he believes to have been inflicted with a heavy and rather blunt weapon. I have not heard of any other wounds or bruises."

"Did anyone enter the train yesterday at Shinglehurst?" Thorndyke asked.

"No one entered the train after it left Halbury."

Thorndyke considered these statements in silence, and presently fell into a brown study, from which he roused only as the train moved out of Shinglehurst station.

"It would be about here that the murder was committed," said Mr. Stopford; "at least, between here and Woldhurst."

Thorndyke nodded rather abstractedly, being engaged at the moment in observing with great attention the objects that were visible from the windows.

"I notice," he remarked presently, "a number of chips scattered about between the rails, and some of the chair-wedges look new. Have there been any platelayers at work lately?"

"Yes," answered Stopford, "they are on the line now, I believe—at least, I saw a gang working near Woldhurst yesterday, and they are said to have set a rick on fire; I saw it smoking when I came down."

"Indeed; and this middle line of rails is, I suppose, a sort of siding?"

"Yes; they shunt the goods trains and empty trucks on to it. There are the remains of the rick—still smouldering, you see."

Thorndyke gazed absently at the blackened heap until an empty cattle-truck on the middle track hid it from view. This was succeeded by a line of goods-waggons, and these by a passenger coach, one compartment of which—a first-class—was closed up and sealed. The train now began to slow down rather suddenly, and a couple of minutes later we brought up in Woldhurst station.

It was evident that rumours of Thorndyke's advent had preceded us, for the entire staff—two porters, an inspector, and the station-master—were waiting expectantly on the platform, and the latter came forward, regardless of his dignity, to help us with our luggage.

"Do you think I could see the carriage?" Thorndyke asked the solicitor.

"Not the inside, sir," said the station-master, on being appealed to. "The police have sealed it up. You would have to ask the inspector."

"Well, I can have a look at the outside, I suppose?" said Thorndyke, and to this the station-master readily agreed, and offered to accompany us.

"What other first-class passengers were there?" Thorndyke asked.

"None, sir. There was only one first-class coach, and the deceased was the only person in it. It has given us all a dreadful turn, this affair has," he continued, as we set off up the line. "I was on the platform when the train came in. We were watching a rick that was burning up the line, and a rare blaze it made, too; and I was just saying that we should have to move the cattle-truck that was on the mid-track, because, you see, sir, the smoke and sparks were blowing across, and I thought it would frighten the poor beasts. And Mr. Felton he don't like his beasts handled roughly. He says it spoils the meat."

"No doubt he is right," said Thorndyke. "But now, tell me, do you think it is possible for any person to board or leave the train on the off-side unobserved? Could a man, for instance, enter a compartment on the off-side at one station and drop off as the train was slowing down at the next, without being seen?"

"I doubt it," replied the station-master. "Still, I wouldn't say it is impossible."

"Thank you. Oh, and there's another question. You have a gang of men at work on the line, I see. Now, do those men belong to the district?"

"No, sir; they are strangers, every one, and pretty rough diamonds some of 'em are. But I shouldn't say there was any real harm in 'em. If you was suspecting any of 'em of being mixed up in this—"

"I am not," interrupted Thorndyke rather shortly. "I suspect nobody; but I wish to get all the facts of the case at the outset."

"Naturally, sir," replied the abashed official; and we pursued our way in silence.

"Do you remember, by the way," said Thorndyke, as we approached the empty coach, "whether the off-side door of the compartment was closed and locked when the body was discovered?"

"It was closed, sir, but not locked. Why, sir, did you think—?"

"Nothing, nothing. The sealed compartment is the one, of course?"

Without waiting for a reply, he commenced his survey of the coach, while I gently restrained our two companions from shadowing him, as they were disposed to do. The off-side footboard occupied his attention specially, and when he had scrutinized minutely the part opposite the fatal compartment, he walked slowly from end to end with his eyes but a few inches from its surface, as though he was searching for something.

Near what had been the rear end he stopped, and drew from his pocket a piece of paper; then, with a moistened finger-tip he picked up from the footboard some evidently minute object, which he carefully transferred to the paper, folding the latter and placing it in his pocket-book.

He next mounted the footboard, and, having peered in through the window of the sealed compartment, produced from his pocket a small insufflator or powder-blower, with which he blew a stream of impalpable smoke-like powder on to the edges of the middle window, bestowing the closest attention on the irregular dusty patches in which it settled, and even measuring one on the jamb of the window with a pocket-rule. At length he stepped down, and, having carefully looked over the near-side footboard, announced that he had finished for the present.

As we were returning down the line, we passed a working man, who seemed to be viewing the chairs and sleepers with more than casual interest.

"That, I suppose, is one of the plate-layers?" Thorndyke suggested to the station-master.

"Yes, the foreman of the gang," was the reply.

"I'll just step back and have a word with him, if you will walk on slowly." And my colleague turned back briskly and overtook the man, with whom he remained in conversation for some minutes.

"I think I see the police inspector on the platform," remarked Thorndyke, as we approached the station.

"Yes, there he is," said our guide. "Come down to see what you are after, sir, I expect." Which was doubtless the case, although the officer professed to be there by the merest chance.

"You would like to see the weapon, sir, I suppose?" he remarked, when he had introduced himself.

"The umbrella-spike," Thorndyke corrected. "Yes, if I may. We are going to the mortuary now."

"Then you'll pass the station on the way; so, if you care to look in, I will walk up with you."

This proposition being agreed to, we all proceeded to the police-station, including the station-master, who was on the very tiptoe of curiosity.

"There you are, sir," said the inspector, unlocking his office, and ushering us in. "Don't say we haven't given every facility to the defence. There are all the effects of the accused, including the very weapon the deed was done with."

"Come, come," protested Thorndyke; "we mustn't be premature." He took the stout ash staff from the officer, and, having examined the formidable spike through a lens, drew from his pocket a steel calliper-gauge, with which he carefully measured the diameter of the spike, and the staff to which it was fixed. "And now," he said, when he had made a note of the measurements in his book, "we will look at the colour-box and the sketch. Ha! a very orderly man, your brother. Mr. Stopford. Tubes all in their places, palette-knives wiped clean, palette cleaned off and rubbed bright, brushes wiped—they ought to be washed before they stiffen—all this is very significant." He unstrapped the sketch from the blank canvas to which it was pinned, and, standing it on a chair in a good light, stepped back to look at it.

"And you tell me that that is only three hours' work!" he exclaimed, looking at the lawyer. "It is really a marvellous achievement."

"My brother is a very rapid worker," replied Stopford dejectedly.

"Yes, but this is not only amazingly rapid; it is in his very happiest vein—full of spirit and feeling. But we mustn't stay to look at it longer." He replaced the canvas on its pins, and having glanced at the locket and some other articles that lay in a drawer, thanked the inspector for his courtesy and withdrew.

"That sketch and the colour-box appear very suggestive to me," he remarked, as we walked up the street.

"To me also," said Stopford gloomily, "for they are under lock and key, like their owner, poor old fellow."

He sighed heavily, and we walked on in silence.

The mortuary-keeper had evidently heard of our arrival, for he was waiting at the door with the key in his hand, and, on being shown the coroner's order, unlocked the door, and we entered together; but, after a momentary glance at the ghostly, shrouded figure lying upon the slate table, Stopford turned pale and retreated, saying that he would wait for us outside with the mortuary-keeper.

As soon as the door was closed and locked on the inside, Thorndyke glanced curiously round the bare, whitewashed building. A stream of sunlight poured in through the skylight, and fell upon the silent form that lay so still under its covering-sheet, and one stray beam glanced into a corner by the door, where, on a row of pegs and a deal table, the dead woman's clothing was displayed.

"There is something unspeakably sad in these poor relics, Jervis," said Thorndyke, as we stood before them. "To me they are more tragic, more full of pathetic suggestion, than the corpse itself. See the smart, jaunty hat, and the costly skirts hanging there, so desolate and forlorn; the dainty lingerie on the table, neatly folded—by the mortuary-man's wife, I hope—the little French shoes and open-work silk stockings. How pathetically eloquent they are of harmless, womanly vanity, and the gay, careless life, snapped short in the twinkling of an eye. But we must not give way to sentiment. There is another life threatened, and it is in our keeping."

He lifted the hat from its peg, and turned it over in his hand. It was, I think, what is called a "picture-hat"—a huge, flat, shapeless mass of gauze and ribbon and feather, spangled over freely with dark-blue sequins. In one part of the brim was a ragged hole, and from this the glittering sequins dropped off in little showers when the hat was moved.

"This will have been worn tilted over on the left side," said Thorndyke, "judging by the general shape and the position of the hole."

"Yes," I agreed. "Like that of the Duchess of Devonshire in Gainsborough's portrait."

"Exactly."

He shook a few of the sequins into the palm of his hand, and, replacing the hat on its peg, dropped the little discs into an envelope, on which he wrote, "From the hat," and slipped it into his pocket. Then, stepping over to the table, he drew back the sheet reverently and even tenderly from the dead woman's face, and looked down at it with grave pity. It was a comely face, white as marble, serene and peaceful in expression, with half-closed eyes, and framed with a mass of brassy, yellow hair; but its beauty was marred by a long linear wound, half cut, half bruise, running down the right cheek from the eye to the chin.

"A handsome girl," Thorndyke commented—"a dark-haired blonde. What a sin to have disfigured herself so with that horrible peroxide." He smoothed the hair back from her forehead, and added: "She seems to have applied the stuff last about ten days ago. There is about a quarter of an inch of dark hair at the roots. What do you make of that wound on the cheek?"

"It looks as if she had struck some sharp angle in falling, though, as the seats are padded in first-class carriages, I don't see what she could have struck."

"No. And now let us look at the other wound. Will you note down the description?" He handed me his notebook, and I wrote down as he dictated: "A clean-punched circular hole in skull, an inch behind and above margin of left ear—diameter, an inch and seven-sixteenths; starred fracture of parietal bone; membranes perforated, and brain entered deeply; ragged scalp-wound, extending forward to margin of left orbit; fragments of gauze and sequins in edges of wound. That will do for the present. Dr. Morton will give us further details if we want them."

He pocketed his callipers and rule, drew from the bruised scalp one or two loose hairs, which he placed in the envelope with the sequins, and, having looked over the body for other wounds or bruises (of which there were none), replaced the sheet, and prepared to depart.

As we walked away from the mortuary, Thorndyke was silent and deeply thoughtful, and I gathered that he was piecing together the facts that he had acquired. At length Mr. Stopford, who had several times looked at him curiously, said:

"The post-mortem will take place at three, and it is now only half-past eleven. What would you like to do next?"

Thorndyke, who, in spite of his mental preoccupation, had been looking about him in his usual keen, attentive way, halted suddenly.

"Your reference to the post-mortem," said he, "reminds me that I forgot to put the ox-gall into my case."

"Ox-gall!" I exclaimed, endeavouring vainly to connect this substance with the technique of the pathologist. "What were you going to do with—"

But here I broke off, remembering my friend's dislike of any discussion of his methods before strangers.

"I suppose," he continued, "there would hardly be an artist's colourman in a place of this size?"

"I should think not," said Stopford. "But couldn't you got the stuff from a butcher? There's a shop just across the road."

"So there is," agreed Thorndyke, who had already observed the shop. "The gall ought, of course, to be prepared, but we can filter it ourselves—that is, if the butcher has any. We will try him, at any rate."

He crossed the road towards the shop, over which the name "Felton" appeared in gilt lettering, and, addressing himself to the proprietor, who stood at the door, introduced himself and explained his wants.

"Ox-gall?" said the butcher. "No, sir, I haven't any just now; but I am having a beast killed this afternoon, and I can let you have some then. In fact," he added, after a pause, "as the matter is of importance, I can have one killed at once if you wish it."

"That is very kind of you," said Thorndyke, "and it would greatly oblige me. Is the beast perfectly healthy?"

"They're in splendid condition, sir. I picked them out of the herd myself. But you shall see them—ay, and choose the one that you'd like killed."

"You are really very good," said Thorndyke warmly. "I will just run into the chemist's next door, and get a suitable bottle, and then I will avail myself of your exceedingly kind offer."

He hurried into the chemist's shop, from which he presently emerged, carrying a white paper parcel; and we then followed the butcher down a narrow lane by the side of his shop. It led to an enclosure containing a small pen, in which were confined three handsome steers, whose glossy, black coats contrasted in a very striking manner with their long, greyish-white, nearly straight horns.

"These are certainly very fine beasts, Mr. Felton," said Thorndyke, as we drew up beside the pen, "and in excellent condition, too."

He leaned over the pen and examined the beasts critically, especially as to their eyes and horns; then, approaching the nearest one, he raised his stick and bestowed a smart tap on the under-side of the right horn, following it by a similar tap on the left one, a proceeding that the beast viewed with stolid surprise.

"The state of the horns," explained Thorndyke, as he moved on to the next steer, "enables one to judge, to some extent, of the beast's health."

"Lord bless you, sir," laughed Mr. Felton, "they haven't got no feeling in their horns, else what good 'ud their horns be to 'em?"

Apparently he was right, for the second steer was as indifferent to a sounding rap on either horn as the first. Nevertheless, when Thorndyke approached the third steer, I unconsciously drew nearer to watch; and I noticed that, as the stick struck the horn, the beast drew back in evident alarm, and that when the blow was repeated, it became manifestly uneasy.

"He don't seem to like that," said the butcher. "Seems as if—Hullo, that's queer!"

Thorndyke had just brought his stick up against the left horn, and immediately the beast had winced and started back, shaking his head and moaning. There was not, however, room for him to back out of reach, and Thorndyke, by leaning into the pen, was able to inspect the sensitive horn, which he did with the closest attention, while the butcher looked on with obvious perturbation.

"You don't think there's anything wrong with this beast, sir, I hope," said he.

"I can't say without a further examination," replied Thorndyke. "It may be the horn only that is affected. If you will have it sawn off close to the head, and sent up to me at the hotel, I will look at it and tell you. And, by way of preventing any mistakes, I will mark it and cover it up, to protect it from injury in the slaughter-house."

He opened his parcel and produced from it a wide-mouthed bottle labelled "Ox-gall," a sheet of gutta-percha tissue, a roller bandage, and a stick of sealing-wax. Handing the bottle to Mr. Felton, he encased the distal half of the horn in a covering by means of the tissue and the bandage, which he fixed securely with the sealing-wax.

"I'll saw the horn off and bring it up to the hotel myself, with the ox-gall," said Mr. Felton. "You shall have them in half an hour."

He was as good as his word, for in half an hour Thorndyke was seated at a small table by the window of our private sitting-room in the Black Bull Hotel. The table was covered with newspaper, and on it lay the long grey horn and Thorndyke's travelling-case, now open and displaying a small microscope and its accessories. The butcher was seated solidly in an armchair waiting, with a half-suspicious eye on Thorndyke for the report; and I was endeavouring by cheerful talk to keep Mr. Stopford from sinking into utter despondency, though I, too, kept a furtive watch on my colleague's rather mysterious proceedings.

I saw him unwind the bandage and apply the horn to his ear, bending it slightly to and fro. I watched him, as he scanned the surface closely through a lens, and observed him as he scraped some substance from the pointed end on to a glass slide, and, having applied a drop of some reagent, began to tease out the scraping with a pair of mounted needles. Presently he placed the slide under the microscope, and, having observed it attentively for a minute or two, turned round sharply.

"Come and look at this, Jervis," said he.

I wanted no second bidding, being on tenterhooks of curiosity, but came over and applied my eye to the instrument.

"Well, what is it?" he asked.

"A multipolar nerve corpuscle—very shrivelled, but unmistakable."

"And this?"

He moved the slide to a fresh spot.

"Two pyramidal nerve corpuscles and some portions of fibres."

"And what do you say the tissue is?"

"Cortical brain substance, I should say, without a doubt."

"I entirely agree with you. And that being so," he added, turning to Mr. Stopford, "we may say that the case for the defence is practically complete."

"What, in Heaven's name, do you mean?" exclaimed Stopford, starting up.

"I mean that we can now prove when and where and how Miss Grant met her death. Come and sit down here, and I will explain. No, you needn't go away, Mr. Felton. We shall have to subpoena you. Perhaps," he continued, "we had better go over the facts and see what they suggest. And first we note the position of the body, lying with the feet close to the off-side door, showing that, when she fell, the deceased was sitting, or more probably standing, close to that door. Next there is this." He drew from his pocket a folded paper, which he opened, displaying a tiny blue disc. "It is one of the sequins with which her hat was trimmed, and I have in this envelope several more which I took from the hat itself.

"This single sequin I picked up on the rear end of the off side footboard, and its presence there makes it nearly certain that at some time Miss Grant had put her head out of the window on that side.

"The next item of evidence I obtained by dusting the margins of the off-side window with a light powder, which made visible a greasy impression three and a quarter inches long on the sharp corner of the right-hand jamb (right-hand from the inside, I mean).

"And now as to the evidence furnished by the body. The wound in the skull is behind and above the left ear, is roughly circular, and measures one inch and seven-sixteenths at most, and a ragged scalp-wound runs from it towards the left eye. On the right cheek is a linear contused wound three and a quarter inches long. There are no other injuries.

"Our next facts are furnished by this." He took up the horn and tapped it with his finger, while the solicitor and Mr. Felton stared at him in speechless wonder. "You notice it is a left horn, and you remember that it was highly sensitive. If you put your ear to it while I strain it, you will hear the grating of a fracture in the bony core. Now look at the pointed end, and you will see several deep scratches running lengthwise, and where those scratches end the diameter of the horn is, as you see by this calliper-gauge, one inch and seven-sixteenths. Covering the scratches is a dry blood-stain, and at the extreme tip is a small mass of a dried substance which Dr. Jervis and I have examined with the microscope and are satisfied is brain tissue."

"Good God!" exclaimed Stopford eagerly. "Do you mean to say—"

"Let us finish with the facts, Mr. Stopford," Thorndyke interrupted. "Now, if you look closely at that blood-stain, you will see a short piece of hair stuck to the horn, and through this lens you can make out the root-bulb. It is a golden hair, you notice, but near the root it is black, and our calliper-gauge shows us that the black portion is fourteen sixty-fourths of an inch long. Now, in this envelope are some hairs that I removed from the dead woman's head. They also are golden hairs, black at the roots, and when I measure the black portion I find it to be fourteen sixty-fourths of an inch long. Then, finally, there is this."

He turned the horn over, and pointed to a small patch of dried blood. Embedded in it was a blue sequin.

Mr. Stopford and the butcher both gazed at the horn in silent amazement; then the former drew a deep breath and looked up at Thorndyke.

"No doubt," said he, "you can explain this mystery, but for my part I am utterly bewildered, though you are filling me with hope."

"And yet the matter is quite simple," returned Thorndyke, "even with these few facts before us, which are only a selection from the body of evidence in our possession. But I will state my theory, and you shall judge." He rapidly sketched a rough plan on a sheet of paper, and continued: "These were the conditions when the train was approaching Woldhurst: Here was the passenger-coach, here was the burning rick, and here was a cattle-truck. This steer was in that truck. Now my hypothesis is that at that time Miss Grant was standing with her head out of the off-side window, watching the burning rick. Her wide hat, worn on the left side, hid from her view the cattle-truck which she was approaching, and then this is what happened." He sketched another plan to a larger scale. "One of the steers—this one—had thrust its long horn out through the bars. The point of that horn struck the deceased's head, driving her face violently against the corner of the window, and then, in disengaging, ploughed its way through the scalp, and suffered a fracture of its core from the violence of the wrench. This hypothesis is inherently probable, it fits all the facts, and those facts admit of no other explanation."

The solicitor sat for a moment as though dazed; then he rose impulsively and seized Thorndyke's hands. "I don't know what to say to you," he exclaimed huskily, "except that you have saved my brother's life, and for that may God reward you!"

The butcher rose from his chair with a slow grin.

"It seems to me," said he, "as if that ox-gall was what you might call a blind, eh, sir?"

And Thorndyke smiled an inscrutable smile.

* * * * *

When we returned to town on the following day we were a party of four, which included Mr. Harold Stopford. The verdict of "Death by misadventure," promptly returned by the coroner's jury, had been shortly followed by his release from custody, and he now sat with his brother and me, listening with rapt attention to Thorndyke's analysis of the case.

"So, you see," the latter concluded, "I had six possible theories of the cause of death worked out before I reached Halbury, and it only remained to select the one that fitted the facts. And when I had seen the cattle-truck, had picked up that sequin, had heard the description of the steers, and had seen the hat and the wounds, there was nothing left to do but the filling in of details."

"And you never doubted my innocence?" asked Harold Stopford.

Thorndyke smiled at his quondam client.

"Not after I had seen your colour-box and your sketch," said he, "to say nothing of the spike."



V

THE MOABITE CIPHER

A large and motley crowd lined the pavements of Oxford Street as Thorndyke and I made our way leisurely eastward. Floral decorations and drooping bunting announced one of those functions inaugurated from time to time by a benevolent Government for the entertainment of fashionable loungers and the relief of distressed pickpockets. For a Russian Grand Duke, who had torn himself away, amidst valedictory explosions, from a loving if too demonstrative people, was to pass anon on his way to the Guildhall; and a British Prince, heroically indiscreet, was expected to occupy a seat in the ducal carriage.

Near Rathbone Place Thorndyke halted and drew my attention to a smart-looking man who stood lounging in a doorway, cigarette in hand.

"Our old friend Inspector Badger," said Thorndyke. "He seems mightily interested in that gentleman in the light overcoat. How d'ye do, Badger?" for at this moment the detective caught his eye and bowed. "Who is your friend?"

"That's what I want to know, sir," replied the inspector. "I've been shadowing him for the last half-hour, but I can't make him out, though I believe I've seen him somewhere. He don't look like a foreigner, but he has got something bulky in his pocket, so I must keep him in sight until the Duke is safely past. I wish," he added gloomily, "these beastly Russians would stop at home. They give us no end of trouble."

"Are you expecting any—occurrences, then?" asked Thorndyke.

"Bless you, sir," exclaimed Badger, "the whole route is lined with plain-clothes men. You see, it is known that several desperate characters followed the Duke to England, and there are a good many exiles living here who would like to have a rap at him. Hallo! What's he up to now?"

The man in the light overcoat had suddenly caught the inspector's too inquiring eye, and forthwith dived into the crowd at the edge of the pavement. In his haste he trod heavily on the foot of a big, rough-looking man, by whom he was in a moment hustled out into the road with such violence that he fell sprawling face downwards. It was an unlucky moment. A mounted constable was just then backing in upon the crowd, and before he could gather the meaning of the shout that arose from the bystanders, his horse had set down one hind-hoof firmly on the prostrate man's back.

The inspector signalled to a constable, who forthwith made a way for us through the crowd; but even as we approached the injured man, he rose stiffly and looked round with a pale, vacant face.

"Are you hurt?" Thorndyke asked gently, with an earnest look into the frightened, wondering eyes.

"No, sir," was the reply; "only I feel queer—sinking—just here."

He laid a trembling hand on his chest, and Thorndyke, still eyeing him anxiously, said in a low voice to the inspector: "Cab or ambulance, as quickly as you can."

A cab was led round from Newman Street, and the injured man put into it. Thorndyke, Badger, and I entered, and we drove off up Rathbone Place. As we proceeded, our patient's face grew more and more ashen, drawn, and anxious; his breathing was shallow and uneven, and his teeth chattered slightly. The cab swung round into Goodge Street, and then—suddenly, in the twinkling of an eye—there came a change. The eyelids and jaw relaxed, the eyes became filmy, and the whole form subsided into the corner in a shrunken heap, with the strange gelatinous limpness of a body that is dead as a whole, while its tissues are still alive.

"God save us! The man's dead!" exclaimed the inspector in a shocked voice—for even policemen have their feelings. He sat staring at the corpse, as it nodded gently with the jolting of the cab, until we drew up inside the courtyard of the Middlesex Hospital, when he got out briskly, with suddenly renewed cheerfulness, to help the porter to place the body on the wheeled couch.

"We shall know who he is now, at any rate," said he, as we followed the couch to the casualty-room. Thorndyke nodded unsympathetically. The medical instinct in him was for the moment stronger than the legal.

The house-surgeon leaned over the couch, and made a rapid examination as he listened to our account of the accident. Then he straightened himself up and looked at Thorndyke.

"Internal haemorrhage, I expect," said he. "At any rate, he's dead, poor beggar!—as dead as Nebuchadnezzar. Ah! here comes a bobby; it's his affair now."

A sergeant came into the room, breathing quickly, and looked in surprise from the corpse to the inspector. But the latter, without loss of time, proceeded to turn out the dead man's pockets, commencing with the bulky object that had first attracted his attention; which proved to be a brown-paper parcel tied up with red tape.

"Pork-pie, begad!" he exclaimed with a crestfallen air as he cut the tape and opened the package. "You had better go through his other pockets, sergeant."

The small heap of odds and ends that resulted from this process tended, with a single exception, to throw little light on the man's identity; the exception being a letter, sealed, but not stamped, addressed in an exceedingly illiterate hand to Mr. Adolf Schoenberg, 213, Greek Street, Soho.

"He was going to leave it by hand, I expect," observed the inspector, with a wistful glance at the sealed envelope. "I think I'll take it round myself, and you had better come with me, sergeant."

He slipped the letter into his pocket, and, leaving the sergeant to take possession of the other effects, made his way out of the building.

"I suppose, Doctor," said he, as we crossed into Berners Street, "you are not coming our way! Don't want to see Mr. Schoenberg, h'm?"

Thorndyke reflected for a moment. "Well, it isn't very far, and we may as well see the end of the incident. Yes; let us go together."

No. 213, Greek Street, was one of those houses that irresistibly suggest to the observer the idea of a church organ, either jamb of the doorway being adorned with a row of brass bell-handles corresponding to the stop-knobs.

These the sergeant examined with the air of an expert musician, and having, as it were, gauged the capacity of the instrument, selected the middle knob on the right-hand side and pulled it briskly; whereupon a first-floor window was thrown up and a head protruded. But it afforded us a momentary glimpse only, for, having caught the sergeant's upturned eye, it retired with surprising precipitancy, and before we had time to speculate on the apparition, the street-door was opened and a man emerged. He was about to close the door after him when the inspector interposed.

"Does Mr. Adolf Schoenberg live here?"

The new-comer, a very typical Jew of the red-haired type, surveyed us thoughtfully through his gold-rimmed spectacles as he repeated the name.

"Schoenberg—Schoenberg? Ah, yes! I know. He lives on the third-floor. I saw him go up a short time ago. Third-floor back;" and indicating the open door with a wave of the hand, he raised his hat and passed into the street.

"I suppose we had better go up," said the inspector, with a dubious glance at the row of bell-pulls. He accordingly started up the stairs, and we all followed in his wake.

There were two doors at the back on the third-floor, but as the one was open, displaying an unoccupied bedroom, the inspector rapped smartly on the other. It flew open almost immediately, and a fierce-looking little man confronted us with a hostile stare.

"Well?" said he.

"Mr. Adolf Schoenberg?" inquired the inspector.

"Well? What about him?" snapped our new acquaintance.

"I wished to have a few words with him," said Badger.

"Then what the deuce do you come banging at my door for?" demanded the other.

"Why, doesn't he live here?"

"No. First-floor front," replied our friend, preparing to close the door.

"Pardon me," said Thorndyke, "but what is Mr. Schoenberg like? I mean—"

"Like?" interrupted the resident. "He's like a blooming Sheeny, with a carroty beard and gold gig-lamps!" and, having presented this impressionist sketch, he brought the interview to a definite close by slamming the door and turning the key.

With a wrathful exclamation, the inspector turned towards the stairs, down which the sergeant was already clattering in hot haste, and made his way back to the ground-floor, followed, as before, by Thorndyke and me. On the doorstep we found the sergeant breathlessly interrogating a smartly-dressed youth, whom I had seen alight from a hansom as we entered the house, and who now stood with a notebook tucked under his arm, sharpening a pencil with deliberate care.

"Mr. James saw him come out, sir," said the sergeant. "He turned up towards the Square."

"Did he seem to hurry?" asked the inspector.

"Rather," replied the reporter. "As soon as you were inside, he went off like a lamplighter. You won't catch him now."

"We don't want to catch him," the detective rejoined gruffly; then, backing out of earshot of the eager pressman, he said in a lower tone: "That was Mr. Schoenberg, beyond a doubt, and it is clear that he has some reason for making himself scarce; so I shall consider myself justified in opening that note."

He suited the action to the word, and, having cut the envelope open with official neatness, drew out the enclosure.

"My hat!" he exclaimed, as his eye fell upon the contents. "What in creation is this? It isn't shorthand, but what the deuce is it?"

He handed the document to Thorndyke, who, having held it up to the light and felt the paper critically, proceeded to examine it with keen interest. It consisted of a single half-sheet of thin notepaper, both sides of which were covered with strange, crabbed characters, written with a brownish-black ink in continuous lines, without any spaces to indicate the divisions into words; and, but for the modern material which bore the writing, it might have been a portion of some ancient manuscript or forgotten codex.

"What do you make of it, Doctor?" inquired the inspector anxiously, after a pause, during which Thorndyke had scrutinized the strange writing with knitted brows.

"Not a great deal," replied Thorndyke. "The character is the Moabite or Phoenician—primitive Semitic, in fact—and reads from right to left. The language I take to be Hebrew. At any rate, I can find no Greek words, and I see here a group of letters which may form one of the few Hebrew words that I know—the word badim, 'lies.' But you had better get it deciphered by an expert."

"If it is Hebrew," said Badger, "we can manage it all right. There are plenty of Jews at our disposal."

"You had much better take the paper to the British Museum," said Thorndyke, "and submit it to the keeper of the Phoenician antiquities for decipherment."

Inspector Badger smiled a foxy smile as he deposited the paper in his pocket-book. "We'll see what we can make of it ourselves first," he said; "but many thanks for your advice, all the same, Doctor. No, Mr. James, I can't give you any information just at present; you had better apply at the hospital."

"I suspect," said Thorndyke, as we took our way homewards, "that Mr. James has collected enough material for his purpose already. He must have followed us from the hospital, and I have no doubt that he has his report, with 'full details,' mentally arranged at this moment. And I am not sure that he didn't get a peep at the mysterious paper, in spite of the inspector's precautions."

"By the way," I said, "what do you make of the document?"

"A cipher, most probably," he replied. "It is written in the primitive Semitic alphabet, which, as you know, is practically identical with primitive Greek. It is written from right to left, like the Phoenician, Hebrew, and Moabite, as well as the earliest Greek, inscriptions. The paper is common cream-laid notepaper, and the ink is ordinary indelible Chinese ink, such as is used by draughtsmen. Those are the facts, and without further study of the document itself, they don't carry us very far."

"Why do you think it is a cipher rather than a document in straightforward Hebrew?"

"Because it is obviously a secret message of some kind. Now, every educated Jew knows more or less Hebrew, and, although he is able to read and write only the modern square Hebrew character, it is so easy to transpose one alphabet into another that the mere language would afford no security. Therefore, I expect that, when the experts translate this document, the translation or transliteration will be a mere farrago of unintelligible nonsense. But we shall see, and meanwhile the facts that we have offer several interesting suggestions which are well worth consideration."

"As, for instance—?"

"Now, my dear Jervis," said Thorndyke, shaking an admonitory forefinger at me, "don't, I pray you, give way to mental indolence. You have these few facts that I have mentioned. Consider them separately and collectively, and in their relation to the circumstances. Don't attempt to suck my brain when you have an excellent brain of your own to suck."

On the following morning the papers fully justified my colleague's opinion of Mr. James. All the events which had occurred, as well as a number that had not, were given in the fullest and most vivid detail, a lengthy reference being made to the paper "found on the person of the dead anarchist," and "written in a private shorthand or cryptogram."

The report concluded with the gratifying—though untrue—statement that "in this intricate and important case, the police have wisely secured the assistance of Dr. John Thorndyke, to whose acute intellect and vast experience the portentous cryptogram will doubtless soon deliver up its secret."

"Very flattering," laughed Thorndyke, to whom I read the extract on his return from the hospital, "but a little awkward if it should induce our friends to deposit a few trifling mementoes in the form of nitro-compounds on our main staircase or in the cellars. By the way, I met Superintendent Miller on London Bridge. The 'cryptogram,' as Mr. James calls it, has set Scotland Yard in a mighty ferment."

"Naturally. What have they done in the matter?"

"They adopted my suggestion, after all, finding that they could make nothing of it themselves, and took it to the British Museum. The Museum people referred them to Professor Poppelbaum, the great palaeographer, to whom they accordingly submitted it."

"Did he express any opinion about it?"

"Yes, provisionally. After a brief examination, he found it to consist of a number of Hebrew words sandwiched between apparently meaningless groups of letters. He furnished the Superintendent off-hand with a translation of the words, and Miller forthwith struck off a number of hectograph copies of it, which he has distributed among the senior officials of his department; so that at present"—here Thorndyke gave vent to a soft chuckle—"Scotland Yard is engaged in a sort of missing word—or, rather, missing sense—competition. Miller invited me to join in the sport, and to that end presented me with one of the hectograph copies on which to exercise my wits, together with a photograph of the document."

"And shall you?" I asked.

"Not I," he replied, laughing. "In the first place, I have not been formally consulted, and consequently am a passive, though interested, spectator. In the second place, I have a theory of my own which I shall test if the occasion arises. But if you would like to take part in the competition, I am authorized to show you the photograph and the translation. I will pass them on to you, and I wish you joy of them."

He handed me the photograph and a sheet of paper that he had just taken from his pocket-book, and watched me with grim amusement as I read out the first few lines.



"Woe, city, lies, robbery, prey, noise, whip, rattling, wheel, horse, chariot, day, darkness, gloominess, clouds, darkness, morning, mountain, people, strong, fire, them, flame."

"It doesn't look very promising at first sight," I remarked. "What is the Professor's theory?"

"His theory—provisionally, of course—is that the words form the message, and the groups of letters represent mere filled-up spaces between the words."

"But surely," I protested, "that would be a very transparent device."

Thorndyke laughed. "There is a childlike simplicity about it," said he, "that is highly attractive—but discouraging. It is much more probable that the words are dummies, and that the letters contain the message. Or, again, the solution may lie in an entirely different direction. But listen! Is that cab coming here?"

It was. It drew up opposite our chambers, and a few moments later a brisk step ascending the stairs heralded a smart rat-tat at our door. Flinging open the latter, I found myself confronted by a well-dressed stranger, who, after a quick glance at me, peered inquisitively over my shoulder into the room.

"I am relieved, Dr. Jervis," said he, "to find you and Dr. Thorndyke at home, as I have come on somewhat urgent professional business. My name," he continued, entering in response to my invitation, "is Barton, but you don't know me, though I know you both by sight. I have come to ask you if one of you—or, better still, both—could come to-night and see my brother."

"That," said Thorndyke, "depends on the circumstances and on the whereabouts of your brother."

"The circumstances," said Mr. Barton, "are, in my opinion, highly suspicious, and I will place them before you—of course, in strict confidence."

Thorndyke nodded and indicated a chair.

"My brother," continued Mr. Barton, taking the profferred seat, "has recently married for the second time. His age is fifty-five, and that of his wife twenty-six, and I may say that the marriage has been—well, by no means a success. Now, within the last fortnight, my brother has been attacked by a mysterious and extremely painful affection of the stomach, to which his doctor seems unable to give a name. It has resisted all treatment hitherto. Day by day the pain and distress increase, and I feel that, unless something decisive is done, the end cannot be far off."

"Is the pain worse after taking food?" inquired Thorndyke.

"That's just it!" exclaimed our visitor. "I see what is in your mind, and it has been in mine, too; so much so that I have tried repeatedly to obtain samples of the food that he is taking. And this morning I succeeded." Here he took from his pocket a wide-mouthed bottle, which, disengaging from its paper wrappings, he laid on the table. "When I called, he was taking his breakfast of arrowroot, which he complained had a gritty taste, supposed by his wife to be due to the sugar. Now I had provided myself with this bottle, and, during the absence of his wife, I managed unobserved to convey a portion of the arrowroot that he had left into it, and I should be greatly obliged if you would examine it and tell me if this arrowroot contains anything that it should not."

He pushed the bottle across to Thorndyke, who carried it to the window, and, extracting a small quantity of the contents with a glass rod, examined the pasty mass with the aid of a lens; then, lifting the bell-glass cover from the microscope, which stood on its table by the window, he smeared a small quantity of the suspected matter on to a glass slip, and placed it on the stage of the instrument.

"I observe a number of crystalline particles in this," he said, after a brief inspection, "which have the appearance of arsenious acid."

"Ah!" ejaculated Mr. Barton, "just what I feared. But are you certain?"

"No," replied Thorndyke; "but the matter is easily tested."

He pressed the button of the bell that communicated with the laboratory, a summons that brought the laboratory assistant from his lair with characteristic promptitude.

"Will you please prepare a Marsh's apparatus, Polton," said Thorndyke.

"I have a couple ready, sir," replied Polton.

"Then pour the acid into one and bring it to me, with a tile."

As his familiar vanished silently, Thorndyke turned to Mr. Barton.

"Supposing we find arsenic in this arrowroot, as we probably shall, what do you want us to do?"

"I want you to come and see my brother," replied our client.

"Why not take a note from me to his doctor?"

"No, no; I want you to come—I should like you both to come—and put a stop at once to this dreadful business. Consider! It's a matter of life and death. You won't refuse! I beg you not to refuse me your help in these terrible circumstances."

"Well," said Thorndyke, as his assistant reappeared, "let us first see what the test has to tell us."

Polton advanced to the table, on which he deposited a small flask, the contents of which were in a state of brisk effervescence, a bottle labelled "calcium hypochlorite," and a white porcelain tile. The flask was fitted with a safety-funnel and a glass tube drawn out to a fine jet, to which Polton cautiously applied a lighted match. Instantly there sprang from the jet a tiny, pale violet flame. Thorndyke now took the tile, and held it in the flame for a few seconds, when the appearance of the surface remained unchanged save for a small circle of condensed moisture. His next proceeding was to thin the arrowroot with distilled water until it was quite fluid, and then pour a small quantity into the funnel. It ran slowly down the tube into the flask, with the bubbling contents of which it became speedily mixed. Almost immediately a change began to appear in the character of the flame, which from a pale violet turned gradually to a sickly blue, while above it hung a faint cloud of white smoke. Once more Thorndyke held the tile above the jet, but this time, no sooner had the pallid flame touched the cold surface of the porcelain, than there appeared on the latter a glistening black stain.

"That is pretty conclusive," observed Thorndyke, lifting the stopper out of the reagent bottle, "but we will apply the final test." He dropped a few drops of the hypochlorite solution on to the tile, and immediately the black stain faded away and vanishod. "We can now answer your question, Mr. Barton," said he, replacing the stopper as he turned to our client. "The specimen that you brought us certainly contains arsenic, and in very considerable quantities."

"Then," exclaimed Mr. Barton, starting from his chair, "you will come and help me to rescue my brother from this dreadful peril. Don't refuse me, Dr. Thorndyke, for mercy's sake, don't refuse."

Thorndyke reflected for a moment.

"Before we decide," said he, "we must see what engagements we have."

With a quick, significant glance at me, he walked into the office, whither I followed in some bewilderment, for I knew that we had no engagements for the evening.

"Now, Jervis," said Thorndyke, as he closed the office door, "what are we to do?"

"We must go, I suppose," I replied. "It seems a pretty urgent case."

"It does," he agreed. "Of course, the man may be telling the truth, after all."

"You don't think he is, then?"

"No. It is a plausible tale, but there is too much arsenic in that arrowroot. Still, I think I ought to go. It is an ordinary professional risk. But there is no reason why you should put your head into the noose."

"Thank you," said I, somewhat huffily. "I don't see what risk there is, but if any exists I claim the right to share it."

"Very well," he answered with a smile, "we will both go. I think we can take care of ourselves."

He re-entered the sitting-room, and announced his decision to Mr. Barton, whose relief and gratitude were quite pathetic.

"But," said Thorndyke, "you have not yet told us where your brother lives."

"Rexford," was the reply—"Rexford, in Essex. It is an out-of-the-way place, but if we catch the seven-fifteen train from Liverpool Street, we shall be there in an hour and a half."

"And as to the return? You know the trains, I suppose?"

"Oh yes," replied our client; "I will see that you don't miss your train back."

"Then I will be with you in a minute," said Thorndyke; and, taking the still-bubbling flask, he retired to the laboratory, whence he returned in a few minutes carrying his hat and overcoat.

The cab which had brought our client was still waiting, and we were soon rattling through the streets towards the station, where we arrived in time to furnish ourselves with dinner-baskets and select our compartment at leisure.

During the early part of the journey our companion was in excellent spirits. He despatched the cold fowl from the basket and quaffed the rather indifferent claret with as much relish as if he had not had a single relation in the world, and after dinner he became genial to the verge of hilarity. But, as time went on, there crept into his manner a certain anxious restlessness. He became silent and preoccupied, and several times furtively consulted his watch.

"The train is confoundedly late!" he exclaimed irritably. "Seven minutes behind time already!"

"A few minutes more or less are not of much consequence," said Thorndyke.

"No, of course not; but still—Ah, thank Heaven, here we are!"

He thrust his head out of the off-side window, and gazed eagerly down the line; then, leaping to his feet, he bustled out on to the platform while the train was still moving.

Even as we alighted a warning bell rang furiously on the up-platform, and as Mr. Barton hurried us through the empty booking-office to the outside of the station, the rumble of the approaching train could be heard above the noise made by our own train moving off.

"My carriage doesn't seem to have arrived yet," exclaimed Mr. Barton, looking anxiously up the station approach. "If you will wait here a moment, I will go and make inquiries."

He darted back into the booking-office and through it on to the platform, just as the up-train roared into the station. Thorndyke followed him with quick but stealthy steps, and, peering out of the booking-office door, watched his proceedings; then he turned and beckoned to me.

"There he goes," said he, pointing to an iron footbridge that spanned the line; and, as I looked, I saw, clearly defined against the dim night sky, a flying figure racing towards the "up" side.

It was hardly two-thirds across when the guard's whistle sang out its shrill warning.

"Quick, Jervis," exclaimed Thorndyke; "she's off!"

He leaped down on to the line, whither I followed instantly, and, crossing the rails, we clambered up together on to the foot-board opposite an empty first-class compartment. Thorndyke's magazine knife, containing, among other implements, a railway-key, was already in his hand. The door was speedily unlocked, and, as we entered, Thorndyke ran through and looked out on to the platform.

"Just in time!" he exclaimed. "He is in one of the forward compartments."

He relocked the door, and, seating himself, proceeded to fill his pipe.

"And now," said I, as the train moved out of the station, "perhaps you will explain this little comedy."

"With pleasure," he replied, "if it needs any explanation. But you can hardly have forgotten Mr. James's flattering remarks in his report of the Greek Street incident, clearly giving the impression that the mysterious document was in my possession. When I read that, I knew I must look out for some attempt to recover it, though I hardly expected such promptness. Still, when Mr. Barton called without credentials or appointment, I viewed him with some suspicion. That suspicion deepened when he wanted us both to come. It deepened further when I found an impossible quantity of arsenic in his sample, and it gave place to certainty when, having allowed him to select the trains by which we were to travel, I went up to the laboratory and examined the time-table; for I then found that the last train for London left Rexford ten minutes after we were due to arrive. Obviously this was a plan to get us both safely out of the way while he and some of his friends ransacked our chambers for the missing document."

"I see; and that accounts for his extraordinary anxiety at the lateness of the train. But why did you come, if you knew it was a 'plant'?"

"My dear fellow," said Thorndyke, "I never miss an interesting experience if I can help it. There are possibilities in this, too, don't you see?"

"But supposing his friends have broken into our chambers already?"

"That contingency has been provided for; but I think they will wait for Mr. Barton—and us."

Our train, being the last one up, stopped at every station, and crawled slothfully in the intervals, so that it was past eleven o'clock when we reached Liverpool Street. Here we got out cautiously, and, mingling with the crowd, followed the unconscious Barton up the platform, through the barrier, and out into the street. He seemed in no special hurry, for, after pausing to light a cigar, he set off at an easy pace up New Broad Street.

Thorndyke hailed a hansom, and, motioning me to enter, directed the cabman to drive to Clifford's Inn Passage.

"Sit well back," said he, as we rattled away up New Broad Street. "We shall be passing our gay deceiver presently—in fact, there he is, a living, walking illustration of the folly of underrating the intelligence of one's adversary."

At Clifford's Inn Passage we dismissed the cab, and, retiring into the shadow of the dark, narrow alley, kept an eye on the gate of Inner Temple Lane. In about twenty minutes we observed our friend approaching on the south side of Fleet Street. He halted at the gate, plied the knocker, and after a brief parley with the night-porter vanished through the wicket. We waited yet five minutes more, and then, having given him time to get clear of the entrance, we crossed the road.

The porter looked at us with some surprise.

"There's a gentleman just gone down to your chambers, sir," said he. "He told me you were expecting him."

"Quite right," said Thorndyke, with a dry smile, "I was. Good-night."

We slunk down the lane, past the church, and through the gloomy cloisters, giving a wide berth to all lamps and lighted entries, until, emerging into Paper Buildings, we crossed at the darkest part to King's Bench Walk, where Thorndyke made straight for the chambers of our friend Anstey, which were two doors above our own.

"Why are we coming here?" I asked, as we ascended the stairs.

But the question needed no answer when we reached the landing, for through the open door of our friend's chambers I could see in the darkened room Anstey himself with two uniformed constables and a couple of plain-clothes men.

"There has been no signal yet, sir," said one of the latter, whom I recognized as a detective-sergeant of our division.

"No," said Thorndyke, "but the M.C. has arrived. He came in five minutes before us."

"Then," exclaimed Anstey, "the ball will open shortly, ladies and gents. The boards are waxed, the fiddlers are tuning up, and—"

"Not quite so loud, if you please, sir," said the sergeant. "I think there is somebody coming up Crown Office Row."

The ball had, in fact, opened. As we peered cautiously out of the open window, keeping well back in the darkened room, a stealthy figure crept out of the shadow, crossed the road, and stole noiselessly into the entry of Thorndyke's chambers. It was quickly followed by a second figure, and then by a third, in which I recognized our elusive client.

"Now listen for the signal," said Thorndyke. "They won't waste time. Confound that clock!"

The soft-voiced bell of the Inner Temple clock, mingling with the harsher tones of St. Dunstan's and the Law Courts, slowly told out the hour of midnight; and as the last reverberations were dying away, some metallic object, apparently a coin, dropped with a sharp clink on to the pavement under our window.

At the sound the watchers simultaneously sprang to their feet.

"You two go first," said the sergeant, addressing the uniformed men, who thereupon stole noiselessly, in their rubber-soled boots, down the stone stairs and along the pavement. The rest of us followed, with less attention to silence, and as we ran up to Thorndyke's chambers, we were aware of quick but stealthy footsteps on the stairs above.

"They've been at work, you see," whispered one of the constables, flashing his lantern on to the iron-bound outer door of our sitting-room, on which the marks of a large jemmy were plainly visible.

The sergeant nodded grimly, and, bidding the constables to remain on the landing, led the way upwards.

As we ascended, faint rustlings continued to be audible from above, and on the second-floor landing we met a man descending briskly, but without hurry, from the third. It was Mr. Barton, and I could not but admire the composure with which he passed the two detectives. But suddenly his glance fell on Thorndyke, and his composure vanished. With a wild stare of incredulous horror, he halted as if petrified; then he broke away and raced furiously down the stairs, and a moment later a muffled shout and the sound of a scuffle told us that he had received a check. On the next flight we met two more men, who, more hurried and less self-possessed, endeavoured to push past; but the sergeant barred the way.

"Why, bless me!" exclaimed the latter, "it's Moakey; and isn't that Tom Harris?"

"It's all right, sergeant," said Moakey plaintively, striving to escape from the officer's grip. "We've come to the wrong house, that's all."

The sergeant smiled indulgently. "I know," he replied. "But you're always coming to the wrong house, Moakey; and now you're just coming along with me to the right house."

He slipped his hand inside his captive's coat, and adroitly fished out a large, folding jemmy; whereupon the discomforted burglar abandoned all further protest.

On our return to the first-floor, we found Mr. Barton sulkily awaiting us, handcuffed to one of the constables, and watched by Polton with pensive disapproval.

"I needn't trouble you to-night, Doctor," said the sergeant, as he marshalled his little troop of captors and captives. "You'll hear from us in the morning. Good-night, sir."

The melancholy procession moved off down the stairs, and we retired into our chambers with Anstey to smoke a last pipe.

"A capable man, that Barton," observed Thorndyke—"ready, plausible, and ingenious, but spoilt by prolonged contact with fools. I wonder if the police will perceive the significance of this little affair."

"They will be more acute than I am if they do," said I.

"Naturally," interposed Anstey, who loved to "cheek" his revered senior, "because there isn't any. It's only Thorndyke's bounce. He is really in a deuce of a fog himself."

However this may have been, the police were a good deal puzzled by the incident, for, on the following morning, we received a visit from no less a person than Superintendent Miller, of Scotland Yard.

"This is a queer business," said he, coming to the point at once—"this burglary, I mean. Why should they want to crack your place, right here in the Temple, too? You've got nothing of value here, have you? No 'hard stuff,' as they call it, for instance?"

"Not so much as a silver teaspoon," replied Thorndyke, who had a conscientious objection to plate of all kinds.

"It's odd," said the superintendent, "deuced odd. When we got your note, we thought these anarchist idiots had mixed you up with the case—you saw the papers, I suppose—and wanted to go through your rooms for some reason. We thought we had our hands on the gang, instead of which we find a party of common crooks that we're sick of the sight of. I tell you, sir, it's annoying when you think you've hooked a salmon, to bring up a blooming eel."

"It must be a great disappointment," Thorndyke agreed, suppressing a smile.

"It is," said the detective. "Not but what we're glad enough to get these beggars, especially Halkett, or Barton, as he calls himself—a mighty slippery customer is Halkett, and mischievous, too—but we're not wanting any disappointments just now. There was that big jewel job in Piccadilly, Taplin and Horne's; I don't mind telling you that we've not got the ghost of a clue. Then there's this anarchist affair. We're all in the dark there, too."

"But what about the cipher?" asked Thorndyke.

"Oh, hang the cipher!" exclaimed the detective irritably. "This Professor Poppelbaum may be a very learned man, but he doesn't help us much. He says the document is in Hebrew, and he has translated it into Double Dutch. Just listen to this!" He dragged out of his pocket a bundle of papers, and, dabbing down a photograph of the document before Thorndyke, commenced to read the Professor's report. "'The document is written in the characters of the well-known inscription of Mesha, King of Moab' (who the devil's he? Never heard of him. Well known, indeed!) 'The language is Hebrew, and the words are separated by groups of letters, which are meaningless, and obviously introduced to mislead and confuse the reader. The words themselves are not strictly consecutive, but, by the interpellation of certain other words, a series of intelligible sentences is obtained, the meaning of which is not very clear, but is no doubt allegorical. The method of decipherment is shown in the accompanying tables, and the full rendering suggested on the enclosed sheet. It is to be noted that the writer of this document was apparently quite unacquainted with the Hebrew language, as appears from the absence of any grammatical construction.' That's the Professor's report, Doctor, and here are the tables showing how he worked it out. It makes my head spin to look at 'em."

He handed to Thorndyke a bundle of ruled sheets, which my colleague examined attentively for a while, and then passed on to me.

"This is very systematic and thorough," said he. "But now let us see the final result at which he arrives."

"It may be all very systematic," growled the superintendent, sorting out his papers, "but I tell you, sir, it's all BOSH!" The latter word he jerked out viciously, as he slapped down on the table the final product of the Professor's labours. "There," he continued, "that's what he calls the 'full rendering,' and I reckon it'll make your hair curl. It might be a message from Bedlam."

Thorndyke took up the first sheet, and as he compared the constructed renderings with the literal translation, the ghost of a smile stole across his usually immovable countenance.

"The meaning is certainly a little obscure," he observed, "though the reconstruction is highly ingenious; and, moreover, I think the Professor is probably right. That is to say, the words which he has supplied are probably the omitted parts of the passages from which the words of the cryptogram were taken. What do you think, Jervis?"