"I should be obliged if you would lend me a copy of the coroner's depositions in the Heredith case."

"With pleasure." Merrington touched a bell, and instructed the policeman who answered it to bring a typescript of the Heredith murder depositions and the revolver which figured as an exhibit in the case. "And tell somebody to call a taxi, Johnson," he added.

When Merrington and Colwyn emerged from the swing doors of the entrance a few moments later, a taxi-cab was waiting at the bottom of the stone steps, with a pockmarked driver leaning against the door of the vehicle, gazing moodily over the Thames Embankment. He received Merrington's instructions morosely, cranked his cab wearily, and was soon threading his way through the mazes of Trafalgar Square and Piccadilly Circus with a contemptuous disregard for traffic regulations, due to his prompt recognition of the fact that he was carrying a high official of Scotland Yard who was above rules of the road regulated by mere police constables. He skimmed in a hazardous way along Regent Street, dipped into the network of narrower streets which lay between that haunt of the fox and the geese and Baker Street, and finally stopped abruptly outside a tall house which was one of a row in a quiet street which led into the highly fashionable locality of Sherryman Square.

Sherryman Street, in which the taxi-cab had stopped, was an offshoot and sn.o.bbish mean relation of Sherryman Square, which housed a duke, an ex-prime minister, and a fugitive king, to say nothing of several lesser notabilities, such as a High Court Judge or two, several baronets, and a war-time profiteer whose brand-new peerage had descended in the last heavy downpour of kingly honours. Because of their proximity to these great ones of the earth, the inhabitants of Sherryman Street a.s.sumed all the airs of exclusiveness which distinguished the residents of the superior neighbourhood, and parasitical house agents spoke of it with great respect because one end opened into the rarefied atmosphere of the Square. It was true that the other end was close to a slum, and there was a mews across the way, but these were small drawbacks compared to the social advantages.

Sherryman Street was full of gaunt, narrow houses, with prim fronts and narrow railed windows, let in segments, flats, and bachelor apartments. Number 10 was as like its fellows as one drab soul resembles another. Superintendent Merrington's ring at the doorbell brought forth an elderly woman with an expressionless face surmounted by a frilled white cap. She informed them in an expressionless voice that Captain Nepcote's apartments were on the second floor. Having said this much, she disappeared into a small lobby room off the entrance hall, leaving them free to enter.

A knock at the entrance door of the second-floor flat brought forth a manservant whose smart bearing and precision of manner suggested military training. He cautiously informed Superintendent Merrington, in reply to his question, that he was not sure if Captain Nepcote was at home, but he would go and see.

"Who shall I say, sir?" he asked, in unconscious contradiction of his statement.

Merrington stopped further parleying by impatiently pushing past the servant into the room.

"Go and tell your master I want to see him," he said, seating himself.

The servant looked angrily at the burly figure on the slender chair, and then, as though realizing his inability to eject him, he left the room without further speech.

The room they had entered was furnished in a style which suggested that its occupier had sufficient means or credit to gratify his tastes, which obviously soared no higher than racehorses and chorus girls. Pictures of the former adorned the wall in oak; the latter smirked at the beholder from silver frames on small tables. The room was handsomely furnished in a masculine way, although there was the suggestion of a feminine touch in the vases on the mantelpiece and some cl.u.s.ters of flowers in a bowl.

The door opened to admit a young man, who advanced towards his visitors with a questioning glance. His appearance, though military, was far from suggesting the sordid warfare of the trenches. He was well-groomed and handsome, and wore his spotless uniform with that touch of distinction which khaki lends to some men.

"Good afternoon," he said, and waited for them to announce the object of their visit.

"Are you Captain Nepcote?" Merrington asked.

"My name is Nepcote," was the response. "May I ask who you are?" His glance included both his visitors.

"My name is Merrington," responded that officer, answering for himself. "Superintendent Merrington, of Scotland Yard. This is Mr. Colwyn, a private detective," he added, as an afterthought. "I wish to ask you a few questions. I understand you were staying at the residence of Sir Philip Heredith when young Mrs. Heredith was murdered."

"That is not quite accurate," replied the young man. "I left the moat-house on the afternoon of the day that the murder was committed, and returned to London. What is it you wish to ask me? I am afraid I cannot enlighten you about the crime in any way, for I know nothing whatever about it. It came as a great shock to me when I heard of it."

"Is this your revolver?" said Merrington, producing the weapon and laying it on the table.

"Why, yes, it is," said the young man, picking it up and looking at it in unmistakable surprise. "Where did you get it?"

"Where did you have it last?" was Merrington's cautious rejoinder.

"Let me think," returned Nepcote thoughtfully. "Oh, I remember. The last time I saw it was at the moat-house on the day before my departure. We were using it for a little target practice in the gun-room downstairs."

"And what did you do with it afterwards?"

"That I cannot tell you," responded Nepcote. "I have no recollection of seeing it since. I have never thought about it."

"Nor missed it?"

"No. It is no use to me-it is not an Army revolver. But it seems to me that I must have left it in the moat-house gun-room after the target shooting. After we finished shooting some of us had a game of bagatelle on a table in the gun-room. I must have put the revolver down and forgotten all about it afterward. I have no recollection of taking it upstairs, and I have certainly never seen it since. Was it found in the gun-room?"

"It was found at the moat-house, at any rate. It was the weapon with which Mrs. Heredith was killed."

"What!" His exclamation rang out in horror and incredulity. "Why, it is impossible. The thing is a mere toy."

"A pretty dangerous toy-as it turned out," was the grim comment of Merrington.

"It seems incredible to me," persisted the young man. "It's very old, and you have to be very strong with the finger and thumb to make it revolve. And the cartridges are very small; only seven millimetres-about a quarter of an inch. I've had the old thing for years, but I never regarded it as a real fire-arm. I'd never have let the girls use it in the gun-room if I'd thought it was a dangerous weapon. Perhaps there is some mistake."

"There is no mistake," replied Merrington. "Mrs. Heredith was killed with that revolver, and no other. We were unable to establish the ident.i.ty of the weapon until a day or two ago, and that is one of my reasons for calling on you to-day-to make quite sure of the ident.i.ty and see if you could tell me where you left it."

"I have no doubt now that I must have left it behind me at the moat-house," responded Nepcote. "I was recalled to France and went away in a hurry. G.o.d forgive me for my carelessness. To think that it resulted in this terrible murder!" His face had gone suddenly white.

"Did you return to France that night?" asked Merrington carelessly.

"As a matter of fact, I did not. When I returned to London from Suss.e.x I found another telegram here from the War Office extending my leave until the following day. I returned to France the next afternoon."

"Thank you, Captain Nepcote." Merrington, as he rose to go, held out his hand. It was evident that the statement about the telegram had cleared his mind of any suspicions he may have felt about the young man. As Nepcote shook hands he added: "You had better hold yourself in readiness to attend the police court inquiry, which will be held a week from to-day. I will send you a proper notification of time and place. All we need from you is the formal identification of the revolver."

"Is it essential that I should attend?" asked the young man anxiously. "I'd rather not be mixed up in the case at all, you know. Besides, I may have to return to France."

"Perhaps we shall be able to dispense with your evidence now that we have the facts," replied Merrington, after a moment's consideration. "I will see what can be done, and let you know. You had better give me your address in France, in case you have left England. It is necessary for me to know that, because the case has to some extent taken a new turn by the discovery that robbery as well as murder has been committed. A valuable necklace belonging to the murdered woman is missing."

Captain Nepcote had taken out his pocket-book while Merrington was speaking, in order to extract a card. As the other uttered the last sentence, the pocket-book half slipped from his fingers, and several other cards fluttered onto the table. Nepcote picked them up hastily, but not before Colwyn's quick glance had taken in their contents. It seemed to him something more than a coincidence that the name and address displayed in neat black lettering on one of the cards should be identical with one of the Hatton Garden addresses given him by Musard at the moat-house the previous day.

CHAPTER XX

Colwyn spent a couple of hours that night reading the depositions he had obtained from Merrington, and next morning he studied them afresh with a concentration which the incessant hum of London traffic outside was powerless to disturb. He was well aware that a report was a poor subst.i.tute for original impressions, but in the typewritten doc.u.ment before him lay the facts of the Heredith case so far as they were known. It was a clear and colourless transcription of the narrative of the witnesses, set down with a painstaking regard for the value of departmental records, and chiefly valuable to Colwyn because it contained the expert evidence which sometimes reveals, with the pitiless accuracy of science, what human nature endeavours to hide. In the balance of the scales of justice it is the ascertained truth which weighs heavier than faith, reason, or revealed religion.

When he had finished his study of the depositions, he sat awhile pondering over his own discoveries since he had been called into the case by the husband of the dead woman. These discoveries, due apparently to chance, invested the murder with a complexity which stimulated all the penetrative and a.n.a.lytical powers of his fine mind, because they brought with them the realization that he was face to face with one of those rare crimes where the solution has to be unravelled from a tangle of false circ.u.mstances, which, by their seeming plausibility, make the task of reaching the truth one of peculiar difficulty. As Colwyn sat motionless, with his chin resting on his hand, brooding over the sullen secretive surface of this dark mystery, the feeling grew upon him that the murder had been preconceived with the utmost cunning and caution, and that the facts so far brought to light, including his own discoveries, did not penetrate to the real design.

The one conviction in his mind at that moment was that the man he and Merrington had interviewed on the previous afternoon had some connection with the mystery, and that an investigation of Nepcote's actions was the first step towards the solution of the murder. Colwyn based that belief on the apparently detached facts of the revolver, the patch of khaki he had found in the woods near the moat-house, and the accident which disclosed that Nepcote was carrying the address of a Hatton Garden jeweller in his pocket-book. These things, taken apart, had perhaps but slight significance, but, considered as links in a chain of events which started in Philip Heredith's statement that he had first met his wife at a friend's house where Nepcote was also a guest, and finishing with the knowledge that Nepcote had not returned to France on the night of the murder, they a.s.sumed a significance which at least warranted the closest investigation.

Colwyn was not affected by the fact that Superintendent Merrington looked at the case from an entirely different point of view. He did not want the help of Scotland Yard in solving the crime. He had too much contempt for the official mind in any capacity to think that a.s.sistance from such a source could be of value to him. He always preferred to work alone and unaided. It was the Anglo-Saxon instinct of fair play which had prompted him to tell Merrington about the missing necklace, so that there might be no unfair advantage between them. Merrington had received the information with the imperviable dogmatism of the official mind, strong in the belief in its own infallibility, resentful of advice or suggestion as an attempt to weaken its dignity. It seemed to Colwyn that not only had Merrington's ruffled dignity led his judgment astray in an attempt to fit the discovery of the missing necklace into his own theory of the case, but it had caused him to commit a grave mistake in putting Nepcote on his guard at a moment when the utmost circ.u.mspection of investigation was necessary.

To Colwyn, at all events, the discovery of the missing necklace was of the utmost importance because it subst.i.tuted another motive for the murder, and a motive which carried with it the additional complication that the thief had some motive in trying to keep its disappearance secret as long as possible by locking the jewel-case after the jewels had been abstracted. If Hazel Rath had not stolen the necklace, the whole of the facts took on new values. It was quite true that the mystery of Hazel Rath's actions on the night of the murder, her subsequent silence after the recovery of the brooch and the handkerchief and the revolver in her mother's rooms, remained as suspicious as before, but the changed motive caused these points to a.s.sume a different complexion, even to the extent of suggesting that she might be a lesser partic.i.p.ant in the crime, perhaps keeping silence in order to shield the greater criminal.

Merrington, stiff-necked in his officialism, had been unable to see this changed aspect of the case, and, strong in his presumption of the girl's guilt, had acted with impulsive indiscretion in going to see Nepcote before attempting to trace the missing necklace.

Colwyn's reflections were interrupted by the appearance of the porter from downstairs to announce a visitor. The visitor, partly obscured behind the burly frame of the porter in the doorway, was Detective Caldew, of Scotland Yard. Colwyn had met him at various times, and invited him to enter. As Colwyn had once said, his feelings towards all the members of the regular detective force were invariably friendly; it was not their fault, but the fault of human nature, that they were sometimes jealous of him. So he made Caldew welcome, and offered him a cigar.

Caldew accepted the cigar and the proffered seat a little nervously. His was the type of temperament which is overawed in the presence of a more successful pract.i.tioner in the same line of business. He had long envied Colwyn his dazzling successes, but at the same time he had sufficient intelligence to understand that many of those successes stood in a cla.s.s which he could never hope to attain.

At the present moment, Caldew's feelings were divided between resentment at Colwyn's action in conveying information to Scotland Yard which had earned him a reprimand from Superintendent Merrington, and the anxious desire to ascertain what the famous private detective thought of the Heredith case.

"Merrington has sent me round for the copy of the depositions he lent you yesterday." It was thus he announced the object of his visit. "Have you finished with it?"

It was apparent from this statement that Superintendent Merrington's grat.i.tude for information received might now be considered as past history. Colwyn, reflecting that it had lasted as long as that feeling usually does, congratulated himself on his forethought in having made a copy of the report. He handed the copy before him to his visitor.

"I am obliged for the loan of it," he said. "It makes interesting reading. You're own share in the original investigations has some excellent touches, if you'll permit me to say so. That trap for the owner of the brooch was a neat idea."