There would be no way of keeping the matter dark, for every incident of the night would have to be embodied in reports. Every detective in London keeps an official diary of his work.
He burned only one match to enable him to get his bearings. Noiselessly he descended the stairs into the hall, and his quick eye observed a splash of light across the floor. It came from under a doorway. He turned the handle and pushed. The door resisted.
"Locked," he murmured, and knocked thunderously. "Hello in there! Anyone about?"
Only the muffled reverberation of his own voice came back to him. Frowning, he strode to the doorway, slipped back the Yale lock, and admitted the uniformed man.
"If I had nerves, Mr. Hawksley, this place would give me the jumps," he observed. "There's something wrong here and I guess it's in that room. See, there's a light on."
"That's queer," commented the other. "It could only just have been switched on. I didn't notice it outside."
"Shutters," said Menzies. "Shutters and drawn curtains. Come on. I'm going to see what's behind that door."
There was no finesse about forcible entry this time. Half a dozen well-directed kicks shattered the hasp of the lock and sent the door flying open. Menzies and his companion moved inside.
For the moment the blaze of the electric light dazzled them. Menzies shaded his eyes with his hand. Then his glance fell from the overturned telephone down to the prostrate figure of Jimmie Hallett. He was across the room in an instant, and made swift examination of the prostrate man.
"Knocked clean out of time," he diagnosed. "Help me get him on the couch. Hello, there's another of 'em." He had observed the body on the hearth-rug.
He bent over the murdered man in close scrutiny but without touching the corpse. His lips pursed into a whistle as he marked the bullet wound that showed among the grey locks at the back of the head. He was startled but scarcely shocked.
He straightened himself up. "This looks a queer business altogether, Hawksley. You'd better get back to the station. Send up the divisional surgeon and 'phone through to the Yard. They'd better let Sir Hilary Thornton and Mr. Foyle know. I shall need Congreve and a couple of men, and you'd better send for Carless and as many of his staff as can be reached quickly. They'll know the district."
The faculty of quick organisation is one of the prime qualities of a chief of detectives, and Menzies was at no loss. The first step in the investigation of most great mysteries is automatic the determination of the facts. It is a kind of circle from facts to possibilities, from possibilities to probabilities, and from probabilities to facts. But the original facts must be settled first, and for any one person to fix them single-handed is an impossibility.
There are certain aspects that must be settled by specialists; there may be a thousand and one enquiries to make in rapid succession. Menzies had no idea of playing a lone hand.
For a couple of hours a steady stream of officials and others descended on the house, and Linstone Terrace Gardens became the centre of such police activity as it had never dreamed would affect its austere respectability.
Men worked from house to house, interviewing servants, masters, mistresses, gleaning such facts as could be obtained of the lonely, eccentric old man, his habits, his visitors, friends, and relations. Inside the house the divisional surgeon had attended to Hallett (" No serious injury. May come round any moment "), and waited till flash-light photographs of the room had been taken from various angles ere examining the dead man. Draughtsmen made plans to scale of the room and every article in it. A finger-print expert peered round searchingly, scattering black or grey powder on things which the murderer might have touched. In the topmost rooms Congreve, Menzies' right-hand man, had begun a hasty search of the house that would become more minute the next day.
Menzies occupied a morning room at the back of the house and was deep in consultation with Sir Hilary Thornton, the grizzled assistant commissioner, and Heldon Foyle, the square-shouldered, well-groomed superintendent of the Criminal Investigation Department.
There was little likeness between the three men, unless it lay in a certain hint of humour in the eyes and a firmness of the mouth. A detective without a sense of humour is lost.
Now and again Menzies broke off the conversation to issue an order or receive a report. Thornton observed for the first time the characters in which he made a few notes on the back of an envelope.
"I didn't know you knew Greek, Menzies," he remarked.
The chief inspector twiddled his pencil awkwardly. "I use it now and again, Sir Hilary. You see, if I should lose my notes by any chance it's odds against the finder reading them. I used to do them in shorthand, but I gave it up. There are too many people who understand it. Yes, what is it, Johnson?"
The man who had entered held out a paper. "Addresses of the cook and housemaid, sir. One lives at Potters Bar, the other at Walthamstow."
"Have them fetched by taxi," ordered Menzies curtly.
"Couldn't you have statements taken from them?" asked Hilary mildly. "It's rather a drag for women in the middle of the night."
Menzies smoothed his moustache. "We don't know what may develop here, sir. We may want to put some questions quickly."
While thus Menzies was straining every resource which a great organisation possessed to gather together into his hands the ends of the case, Jimmie Hallett awoke once more. The throbbing in his head had gone and he lay for a while with closed eyes, listlessly conscious of the mutter of low voices in the room.
He sat up, and at once a dapper little man was by his side. "Ah, you've woke up. Feeling better? That's right. Drink this. We want you to pull yourself together for a little while."
"Thanks. I'm all right," returned Hallett mechanically. He drank something which the other held out to him in a tumbler, and a rush of new life thrilled through him. "Are you Mr. Menzies?"
"No, I'm the police divisional surgeon. Mr. Menzies is in the next room. Think you're up to telling him what has happened? He's anxious to know the meaning of all this."
"So am I," said Hallett grimly, and staggered to his feet. "Just a trifle groggy," he added as he swayed, and the little doctor thrust a supporting shoulder under his arm.
The three in the next room rose as Hallett was ushered in. It was Foyle who sprang to assist Hallett and lifted him bodily on to the settee, which Menzies pushed under the chandelier. The doctor went out.
"Quite comfortable, eh?" asked Foyle. "Let me make that cushion a bit easier for you. Now you're better. We won't worry you at present more than we can help, will we, Menzies?"
The three great detectives, for all that their solicitude seemed solely for the comfort of the young man, were studying him keenly and unobtrusively. Already they had talked him over, but any suspicions that they might have held were quite indefinite. At the opening stage of a murder investigation everyone is suspected. In that lies the difference between murder and professional crime. A burglary, a forgery, is usually committed for one fixed motive by a fixed class of criminal, and the search is narrowed from the start. A millionaire does not pick pockets, but he is quite as likely as anyone else to kill an enemy. In a murder case, no detective would say positively that any person is innocent until he is absolutely certain of the guilt of the real murderer.
Hallett, whose brain was beginning to work swiftly, held out his hand to the chief inspector. "Pleased to meet you, Mr. Menzies. I've got a letter of introduction to you from Pinkerton. That's how I came to ring you up. My name's Hallett."
Menzies shook hands. "Glad to know you, Mr. Hallett. This is Sir Hilary Thornton Mr. Heldon Foyle."
"And now," said Jimmie decisively, when the introductions were done. "Do you people think I killed this man, Greye-Stratton?"
The possibility had been in the