“i am glad you were able to come,” said thorndyke, as we took our places at the table. “your letter was a shade ambiguous. you spoke of discussing the d’arblay case, but i think you had something more than discussion in your mind.”
“you are quite right,” i replied. “i had in my mind to ask if it would be possible for me to retain you—i believe that is the correct expression—to investigate the case, as the police seem to think there is nothing to go on; and if the costs would be likely to be within my means.”
“as to the costs,” said he, “we can dismiss them. i see no reason to suppose that there would be any costs.”
“but your time, sir⸺” i began.
he laughed derisively. “do you propose to pay me for indulging in my pet hobby? no, my dear fellow, it is i who should pay you for bringing a most interesting and intriguing case to my notice. so your questions are answered. i shall be delighted to look into this case, and there will be no costs unless we have to pay for some special services. if we do, i will let you know.”
i was about to utter a protest, but he continued:
“and now, having disposed of the preliminaries, let us consider the case itself. your very shrewd and capable inspector believes that the scotland yard people will take no active measures unless some new facts turn up. i have no doubt he is right, and i think they are right, too. they can’t spend a lot of time—which means public money—on a case in which hardly any data are available, and which holds out no promise of any result. but we mustn’t forget that we are in the same boat. our chances of success are infinitesimal. this investigation is a forlorn hope. that, i may say, is what commends it to me; but i want you to understand clearly that failure is what we have to expect.”
“i understand that,” i answered gloomily, but nevertheless rather disappointed at this pessimistic view. “there seems to be nothing whatever to go upon.”
“oh, it isn’t so bad as that,” he rejoined. “let us just run over the data that we have. our object is to fix the identity of the man who killed julius d’arblay. let us see what we know about him. we will begin with the evidence at the inquest. from that we learned: 1. that he is a man of some education, ingenious, subtle, resourceful. this murder was planned with extraordinary ingenuity and foresight. the body was found in the pond with no telltale mark on it but an almost invisible pinprick in the back. the chances were a thousand to one, or more, against that tiny puncture ever being observed; and if it had not been observed, the verdict would have been ‘found drowned,’ or ‘found dead,’ and the fact of the murder would never have been discovered.
“2. we also learn that he has some knowledge of poisons. the common, vulgar, poisoner is reduced to fly-papers, weed-killer, or rat-poison—arsenic or strychnine. but this man selects the most suitable of all poisons for his purpose, and administers it in the most effective manner; with a hypodermic syringe.
“3. we learned further that he must have had some extraordinarily strong reason for making away with d’arblay. he made most elaborate plans, he took endless trouble—for instance, it must have been no easy matter to get possession of that quantity of aconitine (unless he were a doctor, which god forbid!). that strong reason—the motive, in fact—is the key of the problem. it is the murderer’s one vulnerable point, for it can hardly be beyond discovery; and its discovery must be our principal objective.”
i nodded, not without some self-congratulation as i recalled how i had made this very point in my talk with miss d’arblay.
“those,” thorndyke continued, “are the data that the inquest furnished. now we come to those added by inspector follett.”
“i don’t see that they help us at all,” said i. “the ancient coin was a curious find, but it doesn’t appear to tell us anything new excepting that this man may have been a collector or a dealer. on the other hand, he may not. it doesn’t seem to me that the coin has any significance.”
“doesn’t it really?” said thorndyke, as he refilled my glass. “you are surely overlooking the very curious coincidence that it presents.”
“what coincidence is that?” i asked, in some surprise.
“the coincidence,” he replied, “that both the murderer and the victim should be, to a certain extent, connected with a particular form of activity. here is a man who commits a murder and who, at the time of committing it appears to have been in possession of a coin, which is not a current coin, but a collector’s piece; and behold! the murdered man is a sculptor—a man who, presumably, was capable of making a coin, or at least the working model.”
“there is no evidence,” i objected, “that d’arblay was capable of cutting a die. he was not a die sinker.”
“there was no need for him to be,” thorndyke rejoined. “formerly, the medallist who designed the coin cut the die himself. but that is not the modern practice. nowadays, the designer makes the model, first in wax and then in plaster, on a comparatively large scale. the model of a shilling may be three inches or more in diameter. the actual die-sinking is done by a copying machine which produces a die of the required size by mechanical reduction. i think there could be no doubt that d’arblay could have modelled the design for a coin on the usual scale, say three or four inches in diameter.”
“yes,” i agreed, “he certainly could, for i have seen some of his small relief work; some little plaquettes, not more than two inches long and most delicately and beautifully modelled. but still, i don’t see the connexion, otherwise than as a rather odd coincidence.”
“there may be nothing more,” said he. “there may be nothing in it at all. but odd coincidences should always be noted with very special attention.”
“yes, i realize that. but i can’t imagine what significance there could be in the coincidence.”
“well,” said thorndyke, “let us take an imaginary case, just as an illustration. suppose this man to have been a fraudulent dealer in antiquities; and suppose him to have obtained enlarged photographs of a medal or coin of extreme rarity and of great value, which was in some museum or private collection. suppose him to have taken the photographs to d’arblay and commissioned him to model from them a pair of exact replicas in hardened plaster. from those plaster models he could, with a copying machine, produce a pair of dies with which he could strike replicas in the proper metal and of the exact size; and these could be sold for large sums to judiciously chosen collectors.”
“i don’t believe d’arblay would have accepted such a commission,” i exclaimed indignantly.
“we may assume that he would not, if the fraudulent intent had been known to him. but it would not have been; and there is no reason why he should have refused a commission merely to make a copy. still, i am not suggesting that anything of the kind really happened. i am simply giving you an illustration of one of the innumerable ways in which a perfectly honest sculptor might be made use of by a fraudulent dealer. in that case his honesty would be a source of danger to him; for if a really great fraud were perpetrated by means of his work, it would clearly be to the interest of the perpetrator to get rid of him. an honest and unconscious collaborator in a crime is apt to be a dangerous witness if questions arise.”
i was a good deal impressed by this demonstration. here, it seemed to me, was something very like a tangible clue. but at this point thorndyke again applied a cold douche.
“still,” he said, “we are only dealing with generalities, and rather speculative ones. our assumptions are subject to all sorts of qualifications. it is possible, for instance, though very improbable, that d’arblay may have been murdered in error by a perfect stranger; that he may have walked into an ambush prepared for some one else. again, the coin may not have belonged to the murderer at all, though that is also most improbable. but there are numerous possibilities of error; and we can eliminate them only by following up each suggested clue and seeking verification or disproof. every new fact that we learn is a multiple gain. for as money makes money, so knowledge begets knowledge.”
“that is very true,” i answered dejectedly—for it sounded rather like a platitude; “but i don’t see any means of following up any of these clues.”
“we are going to follow up one of them after lunch, if you have time,” said he. as he spoke, he took from the table drawer a paper packet and a jeweller’s leather case. “this,” he said, handing me the packet, “contains your sealing-wax moulds. you had better take care of them and keep the box with the marked side up to prevent the wax from warping. here are a pair of casts in hardened plaster—‘fictile ivory,’ as it is called—which my assistant, polton, has made.”
he opened the case and passed it to me, when i saw that it was lined with purple velvet and contained what looked like two old ivory replicas of the mysterious coin.
“mr. polton is quite an artist,” i said, regarding them admiringly. “but what are you going to do with these?”
“i had intended to take them round to the british museum and show them to the keeper of the coins and medals, or one of his colleagues. but i think i will just ask a few questions and hear what he says before i produce the casts. have you time to come round with me?”
“i shall make time. but what do you want to know about the coin?”
“it is just a matter of verification,” he replied. “my books on the british coinage describe the charles the second guinea as having a tiny elephant under the bust on the obverse, to show that the gold from which it was minted came from the guinea coast.”
“yes,” said i. “well, there is a little elephant under the bust in this coin.”
“true,” he replied. “but this elephant has a castle on his back, and would ordinarily be described as an elephant and castle, to distinguish him from the plain elephant which appeared on some coins. what i want to ascertain is whether there were two different types of guinea. the books make no mention of a second variety.”
“surely they would have referred to it if there had been,” said i.
“so i thought,” he replied; “but it is better to make sure than to think.”
“i suppose it is,” i agreed without much conviction, “though i don’t see that, even if there were two varieties, that fact would have any bearing on what we want to know.”
“neither do i,” he admitted. “but then you can never tell what a fact will prove until you are in possession of the fact. and now, as we seem to have finished, perhaps we had better make our way to the museum.”
the department of coins and medals is associated in my mind with an impassive-looking chinese person in bronze who presides over the upper landing of the main staircase. in fact, we halted for a moment before him to exchange a final word.
“it will probably be best,” said thorndyke, “to say nothing about this coin, or, indeed, about anything else. we don’t want to enter into any explanations.”
“no,” i agreed. “it is best to keep one’s own counsel;” and with this we entered the hall, where thorndyke led the way to a small door and pressed the electric bell-push. an attendant admitted us, and when we had signed our names in the visitors’ book, he ushered us into the keeper’s room. as we entered, a keen-faced, middle-aged man who was seated at a table inspected us over his spectacles, and, apparently recognizing thorndyke, rose and held out his hand.
“quite a long time since i have seen you,” he remarked after the preliminary greetings. “i wonder what your quest is this time.”
“it is a very simple one,” said thorndyke. “i am going to ask if you can let me look at a charles the second guinea dated 1663.”
“certainly i can,” was the reply, accompanied by an inquisitive glance at my friend. “it is not a rarity, you know.”
he crossed the room to a large cabinet, and having run his eye over the multitudinous labels, drew out a small, very shallow drawer. with this in his hand he returned, and picking a coin out of its circular pit, held it out to thorndyke, who took it from him, holding it delicately by the edge. he looked at it attentively for a few moments, and then silently presented the obverse for my inspection. naturally my eye at once sought the little elephant under the bust, and there it was; but there was no castle on its back.
“is this the only type of guinea issued at that date?” thorndyke asked.
“the only type,” was the reply. “this is the first issue of the guinea.”
“there was no variation or alternative form?”
“there was a form which had no elephant under the bust. only those which were minted from african gold bore the elephant.”
“i notice that this coin has a plain elephant under the bust; but i seem to have heard of a guinea, bearing this date, which had an elephant and castle under the bust. you are sure there was no such guinea?”
our official friend shook his head as he took the coin from thorndyke and replaced it in its cell. “as sure,” he replied, “as one can be of a universal negative. the elephant and castle did not appear until 1685.” he picked up the drawer and was just moving away towards the cabinet when there came a sudden change in his manner.
“wait!” he exclaimed, stopping and putting down the drawer. “you are quite right. only it was not an issue; it was a trial piece, and only a single coin was struck. i will tell you about it. there is a rather curious story hanging to that piece.
“this guinea, as you probably know, was struck from dies cut by john roettier, and was one of the first coined by the mill-and-screw process in place of the old hammer-and-pile method. now when roettier had finished the dies, a trial piece was struck; and in striking that piece the obverse die cracked right across, but apparently only at the last turn of the screw, for the trial piece was quite perfect. of course, roettier had to cut a new die; and for some reason he made a slight alteration. the first die had an elephant and castle under the bust. in the second one he changed this to a plain elephant. so your impression was, so far, correct; but the coin, if it still exists, is absolutely unique.”
“is it not known, then, what became of that trial piece?”
“oh, yes—up to a point. that is the queerest part of the story. for a time it remained in the possession of the slingsby family—slingsby was the master of the mint when it was struck. then it passed through the hands of various collectors, and finally was bought by an american collector named van zellen. now van zellen was a millionaire, and his collection was a typical millionaire’s collection. it consisted entirely of things of enormous value which no ordinary man could afford, or of unique things of which nobody could possibly have a duplicate. it seems that he was a rather solitary man, and that he spent most of his evenings alone in his museum, gloating over his possessions.
“one morning van zellen was found dead in the little study attached to the museum. that was about eighteen months ago. there was an empty champagne bottle on the table and a half-emptied glass, which smelt of bitter almonds, and in his pocket was an empty phial labelled ‘hydrocyanic acid.’ at first it was assumed that he had committed suicide, but when, later, the collection was examined, it was found that a considerable part of it was missing. a clean sweep had been made of the gems, jewels, and other portable objects of value, and, among other things, this unique trial guinea had vanished. surely you remember the case?”
“yes,” replied thorndyke. “i do, now you mention it, but i never heard what was stolen. do you happen to know what the later developments were?”
“there were none. the identity of the murderer was never even guessed at, and not a single item of the stolen property has ever been traced. to this day the crime remains an impenetrable mystery—unless you know something about it,” and again our friend cast an inquisitive glance at thorndyke.
“my practice,” the latter replied, “does not extend to the united states. their own very efficient investigators seem to be able to do all that is necessary. but i am very much obliged to you for having given us so much of your time, to say nothing of this extremely interesting information. i shall make a note of it, for american crime occasionally has its repercussions on this side.”
i secretly admired the adroit way in which thorndyke had evaded the rather pointed question without making any actual mis-statement. but the motive for the evasion was not very obvious to me. i was about to put a question on the subject, but he anticipated it, for, as soon as we were outside, he remarked with a chuckle: “it is just as well that we didn’t begin by exhibiting the casts. we could hardly have sworn our friend to secrecy, seeing that the original is undoubtedly stolen property.”
“but aren’t you going to draw the attention of the police to the fact?”
“i think not,” he replied. “they have got the original, and no doubt they have a list of the stolen property. we must assume that they will make use of their knowledge; but if they don’t, it may be all the better for us. the police are very discreet; but they do sometimes give the press more information than i should. and what is told to the press is told to the criminal.”
“and why not?” i asked. “what is the harm of his knowing?”
“my dear gray!” exclaimed thorndyke. “you surprise me. just consider the position. this man aimed at being entirely unsuspected. that failed. but still his identity is unknown, and he is probably confident that it will never be ascertained. then he is, so far, off his guard. there is no need for him to disappear or go into hiding. but let him know that he is being tracked and he will almost certainly take fresh precautions against discovery. probably he will slip away beyond our reach. our aim must be to encourage in him a feeling of perfect security; and that aim commits us to the strictest secrecy. no one must know what cards we hold or that we hold any; or even that we are taking a hand.”
“what about miss d’arblay?” i asked anxiously. “may i not tell her that you are working on her behalf?”
he looked at me somewhat dubiously. “it would obviously be better not to,” he said, “but that might seem a little unfriendly and unsympathetic.”
“it would be an immense relief to her to know that you are trying to help her, and i think you could trust her to keep your secrets.”
“very well,” he conceded. “but warn her very thoroughly. remember that our antagonist is hidden from us. let us remain hidden from him, so far as our activities are concerned.”
“i will make her promise absolute secrecy,” i agreed: and then, with a slight sense of anti-climax, i added: “but we don’t seem to have so very much to conceal. this curious story of the stolen coin is interesting, but it doesn’t appear to get us any more forward.”
“doesn’t it?” he asked. “now i was just congratulating myself on the progress that we had made; on the way in which we are narrowing down the field of inquiry. let us trace our progress. when you found the body there was no evidence as to the cause of death; no suspicion of any agent whatever. then came the inquest, demonstrating the cause of death and bringing into view a person of unknown identity, but having certain distinguishing characteristics. then follett’s discovery added some further characteristics and suggested certain possible motives for the crime. but still there was no hint as to the person’s identity or position in life. now we have good evidence that he is a professional criminal of a dangerous type, that he is connected with another crime and with a quantity of easily identified stolen property. we also know that he was in america about eighteen months ago, and we can easily get exact information as to dates and locality. this man is no longer a mere formless shadow. he is in a definite category of possible persons.”
“but,” i objected, “the fact that he had the coin in his possession does not prove that he is the man who stole it.”
“not by itself,” thorndyke agreed. “but taken in conjunction with the crime, it is almost conclusive. you appear to be overlooking the striking similarity of the two crimes. each was a violent murder committed by means of poison; and in each case, the poison selected was the most suitable one for the purpose. the one, aconitine, was calculated to escape detection; the other, hydrocyanic acid—the most rapidly acting of all poisons—was calculated to produce almost instant death in a man who was probably struggling and might have raised an alarm. i think we are fairly justified in assuming that the murderer of van zellen was the murderer of d’arblay. if that is so, we have two groups of circumstances to investigate, two tracks by which to follow him; and, sooner or later, i feel confident, we shall be able to give him a name. then if we have kept our own counsel, and he is unconscious of the pursuit, we shall be able to lay our hands on him. but here we are at the foundling hospital. it is time for each of us to get back to the routine of duty.”
