"Keep the light steady, Jervis," said he, and forth with he began to manipulate the milled edges of the letter discs, beginnings as I noticed, at the right or reverse end of the slot and working backwards. I watched him with feverish interest and curiosity, as also did Miller, looking to see some word of fifteen letters develop in the slot. Instead of which, I saw, to my amazement and bewilderment my colleague's finger transforming the row of A's into a succession of M's, which, however, were presently followed by an L and some X's. When the row was completed it looked like some remote, antediluvian date set down in Roman numerals.
"Try the handle now, Miller," said Thorndyke.
The superintendent needed no second bidding. Snatching at the handle, he turned it and bore heavily on the door. Almost instantly a thin line of light appeared at the edge; there was a sharp click, and the door swung right open. We fell out immediately—at least the superintendent and I did—thankful to find ourselves outside and alive. But, as we emerged, we both became aware of a man, white-faced and horror-stricken of aspect, stooping over the two corpses at the other end of the room. Our appearance was so sudden and unexpected—for the massive solidity of the safe-door had rendered our movements inaudible outside—that, for a moment or two, he stood immovable, staring at us, wild-eyed and open-mouthed. Then, suddenly, he sprang up erect, and, darting to the door, opened it and rushed out with Miller close on his heels.
He did not get very far. Following the superintendent, I saw the fugitive wriggling in the embrace of a tall man on the pavement, who, with Miller's assistance, soon had a pair of handcuffs snapped on the man's wrists and then departed with his captive in search of a cab.
"That's one of 'em, I expect," said Miller, as we returned to the office; then, as his glance fell on the open strong-room door, he mopped his face with his handkerchief. "That door gives me the creeps to look at it," said he. "Lord! what a shake-up that was! I've never had such a scare in my life. When I heard that door shut and I remembered how that poor devil, Shemmonds, came tumbling out—phoo!" He wiped his brow again, and, walking towards the strong-room door, asked: "By the way, what was the magic word after all?" He stepped up to the indicator, and, after a quick glance, looked round at me in surprise. "Why!" he exclaimed, "blow me if it isn't AAAA still! But the doctor altered it, didn't he?"
At this moment Thorndyke appeared from the strong-room, where he had apparently been conducting some explorations, and to him the superintendent turned for an explanation.
"It is an ingenious device," said he; "in fact, the whole strong-room is a monument of ingenuity, somewhat misapplied, but perfectly effective, as Mr. Shemmonds's corpse testifies. The key-combination is a number expressed in Roman numerals, but the lock has a fly-back mechanism which acts as soon as the door begins to open. That was how Shemmonds was caught. He, no doubt purposely, avoided watching Luttrell set the lock—or else Luttrell didn't let him—but as he went in with his intended victim, he looked at the indicator and saw the row of A's, which he naturally assumed to be the key. Then, when he tried to let himself out, of course, the lock wouldn't open."
"It is rather odd that he didn't try some other combinations," said I.
"He probably did," replied Thorndyke "but when they failed he would naturally come back to the A's, which be had seen when the door was open. This is how it works."
He shut the door, and then, closely watched by the superintendent and me, turned the milled rims of the letter-discs until the indicator showed a row of numerals thus: MMMMMMMCCCLXXXV. Grasping the handle, he turned it and gave a gentle pull, when the door began to open. But the instant it started from its bed, there was a loud click and all the letters of the indicator flew back to A.
"Well, I'm jiggered!" exclaimed Miller. "It must have been an awful suck-in for that poor blighter, Shemmonds. Took me in, too. I saw those A's and the door open, and I thought I knew all about it. But what beats me, doctor, is how you managed to work it out. I can't see what you had to go on. Would it be allowable to ask how it was done?"
"Certainly," replied Thorndyke, "but we had better defer the explanation. You have got those two bodies to dispose of and some other matters, and we must get back to our chambers. I will write down the key-combination, in case you want it, and then you must come and see us and let us know what luck you have had."
He wrote the numerals on a slip of paper, and when he had handed it to the superintendent, we took our leave.
"I find myself," said I, as we walked home, "in much the same position as Miller. I don't see what you had to go on. It is clear to me that you not only worked out the lock-combination—from the seal inscription, as I assume—but that you identified Luttrell as the director of the gang. I don't, in the least, understand how you did it."
"And yet, Jervis," said he, "it was an essentially simple case. If you review it and cast up the items of evidence, you will see that we really had all the facts. The problem was merely to co-ordinate them and extract their significance. Take first the character of Luttrell. We saw the man in company with another, evidently a fairly intimate acquaintance. They were being shadowed by a detective, and it is pretty clear that they detected the sleuth, for they shook him off quite neatly. Later, we learn from Miller that one of these men is suspected to be a member of a firm of swell burglars and that the other is a well-to-do, rather eccentric and very miscellaneous dealer, who has a strong-room fitted with a puzzle lock. I am astonished that the usually acute Miller did not notice how well Luttrell fitted the part of the managing director whom he was looking for. Here was a dealer who bought and sold all sorts of queer but valuable things, who must have had unlimited facilities for getting rid of stones, bullion and silver, and who used a puzzle lock. Now, who uses a puzzle lock? No one, certainly, who can conveniently use a key. But to the manager of a gang of thieves it would be a valuable safeguard, for he might at any moment be robbed of his keys, and perhaps made away with. But he could not be robbed of the secret passwords and his possession of it would be a security against murder. So you see that the simple probabilities pointed to Luttrell as the head of the gang.
"And now consider the problem of the lock. First, we saw that Luttrell wore on his left hand a huge, cumbrous seal ring, that he carried a Coddington lens on his watch-guard, and a small electric lamp in his pocket. That told us very, little. But when Miller told us about the lock and showed us the squeeze of the seal, and when we saw that the seal bore a long inscription in minute lettering, a connection began to appear. As Miller justly observed, no man—especially no elderly man—could trust the key combination exclusively to his memory. He would carry about him some record to which he could refer in case his memory failed him. But that record would hardly be one that anybody could read, or the secrecy and safety of the lock would be gone. It would probably be some kind of cryptogram; and when we saw this inscription and considered it in conjunction with the lens and the lamp, it seemed highly probable that the key-combination was contained in the inscription; and that probability was further increased when we saw the nonsensical doggerel of which the inscription was made up. The suggestion was that the verses had been made for some purpose independent of their sense. Accordingly I gave the inscription very careful consideration.
Now we learned from Miller that the puzzle lock had fifteen letters. The key might be one long word, such as 'superlativeness', a number of short words, or some chemical or other formula. Or it was possible that it might be of the nature of a chronogram. I have never heard of chronograms being used for secret records or messages, but it has often occurred to me that they would be extremely suitable. And this was an exceptionally suitable case."
"Chronogram," said I. "Isn't that something connected with medals?"
"They have often been used on medals," he replied. "In effect, a chronogram is an inscription some of the letters of which form a date connected with the subject of the inscription. Usually the date letters are or cut larger than the others for convenience in reading, but, of cour
se, this is not essential. The principle of a chronogram is this. The letters of the Roman alphabet are of two kinds: those that are simply letters and nothing else, and those that are numerals as well as letters. The numeral letters are M = a thousand, D = five hundred, C = one hundred, L = fifty, X = ten, V = five, and I = one. Now, in deciphering a chronogram, you pick out all the numeral letters and add them up without regard to their order. The total gives you the date.
"Well, as I said, it occurred to me that this might be of the nature of a chronogram; but as the lock had letters and not figures, the number, if there was one, would have to be expressed in Roman numerals, and it would have to form a number of fifteen numeral letters. As it was thus quite easy to put my hypothesis to the test, I proceeded to treat the inscription as a chronogram and decipher it; and behold! it yielded a number of fifteen letters, which, of course, was as near certainty as was possible, short of actual experiment."
"Let us see how you did the decipherment," I said, as we entered our chambers and shut the door. I procured a large note-block and pencil, and, laying them on the table, drew up two chairs.
"Now," said I, "fire away."
"Very well," he said. "We will begin by writing the inscription in proper chronogram form with the numeral letters double size and treating the U's as V's and the W's as double V's according to the rules."
Here he wrote out the inscription in Roman capitals thus:
"eheV aLas hoVV fast the DaM fVgaCes
LabVntVr annI espeCIaLLy In the Cases
of poor oLD bLokes LIke yoV anD Me posthVMVs
VVho onLy VVaIt for VerMes to ConsVMe Vs."
[Compiler's note: I have replaced the small caps in the original with lower-case letters.]
"Now," said he, "let us make a column of each line and add them up, thus:
1. V=5, L=50, VV=10, D=500, M=1000, V=5, C=100—Total 1670
2. L=50, V=5, V=5, I=1, C=100, I=1, L=50, L=50, I=1, C=100—Total 363
3. L=50, D=500, L=50, L=50, I=1, V=5, D=500, M=1000, V=5, M=1000, V=5—Total 3166
4. VV=10, L=50, VV=10, I=1, V=5, M=1000, C=100, V=5, M=1000, V=5—Total 2186
"Now," he continued "we take the four totals and add them together, thus:
1670+363+3166+2186 = 7385
and we get the grand total of seven thousand three hundred and eighty-five and this, expressed in Roman numerals, is MMMMMMMCCCLXXXV.
Here, then, is a number consisting of fifteen letters, the exact number of spaces in the indicator of the puzzle lock; and I repeat that this striking coincidence, added to, or rather multiplied into, the other probabilities, made it practically certain that this was the key-combination. It remained only to test it by actual experiment."
"By the way," said I, "I noticed that you perked up rather suddenly when Miller mentioned the electric meter."
"Naturally," he replied. "It seemed that there must be a small lamp switched on somewhere in the building, and the only place that had not been examined was the strong-room. But if there was a lamp alight there, someone had been in the strong-room. And, as the only person who was known to be able to get in was missing, it seemed probable that he was in there still. But if he was, he was pretty certainly dead; and there was quite a considerable probability that some one else was in there with him, since his companion was missing, too, and both had disappeared at the same time. But I must confess that that spring drawer was beyond my expectations, though I suspected it as soon as I saw Miller pulling at it. Luttrell was an ingenious old rascal; he almost deserved a better fate. However, I expect his death will have delivered the gang into the hands of the police."
Events fell out as Thorndyke surmised. Mr. Luttrell's little journal, in conjunction with the confession of the spy who had been captured on the premises, enabled the police to swoop down on the disconcerted gang before any breath of suspicion had reached them; with the result that they are now secured in strong-rooms of another kind whereof the doors are fitted with appliances as effective as, though less ingenious than, Mr. Luttrell's puzzle lock.
The Green Check Jacket
The visits of our old friend, Mr. Brodribb, even when strictly professional, usually took the outward form of a friendly call. On the present occasion there was no such pretence. The old solicitor entered our chambers carrying a small suit-case (the stamped initials on which, "R.M.," I noticed, instantly attracted an inquisitive glance from Thorndyke, being obviously not Mr. Brodribb's own) which he placed on the table and then shook hands with an evident air of business.
"I have come, Thorndyke," he said, with unusual directness, "to ask your advice on a matter which is causing me some uneasiness. Do you know Reginald Merrill?"
"Slightly," was the reply. "I meet him occasionally in court; and, of course, I know him as the author of that interesting book on Prehistoric Flint-mines."
"Well," said Brodribb, "he has disappeared. He is missing. I don't like to use the expression; but when a responsible man is absent from his usual places of resort, when he apparently had no expectation of being so absent, and when he has made no provision for such absence, I think we may regard him as having disappeared in a legal sense. His absence calls for active inquiry."
"Undoubtedly," agreed Thorndyke; "and I take it that you are the person on whom the duty devolves?"
"I think so. I am his solicitor and the executor of his will—at least I believe so; and the only near relative of his whom I know is his nephew and heir, Ethelbert Crick, his sister's son. But Crick seems to have disappeared, too; and about the same time as Merrill. It is an extraordinary affair."
"You say that you believe you are Merrill's executor. Haven't you seen the will?"
"I have seen a will. I have it in my safe. But Merrill said he was going to draw up another, and he may have done so. But if he has, he will almost certainly have appointed me his executor, and I shall assume that he has and act accordingly."
"Was there any special reason for making a new will?" Thorndyke asked.
"Yes," replied Brodribb. "He has just come into quite a considerable fortune, and he was pretty well off before. Under the old will, practically the whole of his property went to Crick. There was a small bequest to a man named Samuel Horder, his cousin's son; and Horder was the alternative legatee if Crick should die before Merrill. Now, I understood Merrill to say that, in view of this extra fortune, he wished to do rather more for Horder, and I gathered that he proposed to divide the estate more or less equally between the two men. The whole estate was more than he thought necessary for Crick. And now, as we have cleared up the preliminaries, I will give you the circumstances of the disappearance.
"Last Wednesday, the 5th, I had a note from him saying that he would have some reports ready for me on the following day, but that he would be away from his office from 10.30 a.m. to about 6.30, and suggesting that I should send round in the evening if I wanted the papers particularly. Now it happened that my clerk, Page, had to go to a place near London Bridge on Thursday morning, and, oddly enough, he saw Mr. Merrill come out of Edginton's, the ship-fitters, with a man who was carrying a largish hand-bag. There was nothing in it, of course, but Page is an observant man and he noticed Merrill's companion so far as to observe that he was wearing a Norfolk jacket of a greenish shepherd's plaid and a grey tweed hat. He also noted the time by the big clock in the street near to Edginton's—11.46—and that Merrill looked up at it, and that the two men then walked off rather quickly in the direction of the station. Well, in the evening, I sent Page round to Merrill's chambers in Fig-tree Court to get the papers. He arrived there just after 6.30, but he found the oak shut, and though he rapped at the door on the chance that Merrill might have come in—he lives in the chambers adjoining the office—there was no answer. So he went for a walk round the Temple, deciding to return a little later.
"Well, he had gone as far as the cloisters and was loitering there to look in the window of the wig shop when he saw a man in a greenish shepherd's plaid jacket and a tweed hat coming up
Pump Court. As the man approached Page thought he recognised him; in fact, he felt so sure that he stopped him and asked him if he knew what time Mr. Merrill would be home. But the man looked at him in astonishment. 'Merrill?' said he. 'I don't know anyone of that name.' Thereupon Page apologised and explained how he had been misled by the pattern and colour of the jacket.
"After walking about for nearly half an hour, Page went back to Merrill's chambers; but the oak was shut and he could get no answer by rapping with his stick, so he scribbled a note and dropped it into the letter-box and came away. The next morning I sent him round again, but the chambers were still shut up, and they have been shut up ever since; and nothing what ever has been seen or heard of Merrill.
"On Saturday, thinking it possible that Crick might be able to give me some news of his uncle, I called at his lodgings; and then, to my astonishment, I learned that he also was missing. He had gone away early on Thursday morning, saying that he had to go on business to Rochester, and that he might not be home to dinner. But he never came home at all. I called again on Sunday evening, and, as he had still not returned, I decided to take more active measures.
"This afternoon, immediately after lunch, I called at the Porter's Lodge, and, having briefly explained the circumstances and who I was, asked the porter to bring the duplicate key—which he had for the laundress—and accompany me to Mr. Merrill's chambers to see if, by chance, the tenant might be lying in them dead or insensible. He assured me that this could not be the case, since he had given the key every morning to the laundress, who had, in fact, returned it to him only a couple of hours previously. Nevertheless, he took the key and looked up the laundress, who had rooms near the lodge, who was fortunately at home and who turned out to be a most respectable and intelligent elderly woman; and we went together to Merrill's chambers. The porter admitted us, and when we had been right I through the set and ascertained definitely that Merrill was not there, he handed the key to the laundress, Mrs. Butler, and went away.
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