"That's all right, sir. The main thing now is to search every inch of the woods. If nothing else, we may find footprints."

"And make plenty of new ones."

"Not if the helpers do as I tell 'em, sir."

"I can't argue. I'm not fit for it. Still, some instinct warns me you are not adopting the best course. I think you ought to go in the car and put the police into combined action."

"What are they to do, sir? The murderer won't carry a rifle through the village, or along the open road. I fancy we'll come across the weapon itself in the wood. Besides, the Inspector will do all that is necessary when Brodie sees him. Reelly, sir, I know I'm right."

"But should that artist be questioned?"

"Of course he will, sir. He won't run away. If he does, we'll soon nab him. He's been stayin' at the White Horse Inn the last two days, an' is quite a nice-spoken young gentleman. Why should he want to shoot Mr. Fenley?"

"He is annoyed with my father, for one thing."

"Eh? Wot, sir?"

Farrow, hitherto eager to be off on the hunt, stopped as if he heard a statement of real importance.

Hilton Fenley pressed a hand to his eyes.

"It was nothing to speak of," he muttered. "He wrote asking permission to sketch the house, and my father refused – just why I don't know; some business matter had vexed him that day, I fancy, and he dashed off the refusal on the spur of the moment. But a man does not commit a terrible crime for so slight a cause… Oh, if only my head would cease throbbing!.. Do as you like. Bates, see that every assistance is given."

Fenley walked a few paces unsteadily. Obviously he was incapable of lucid thought, and the mere effort at sustained conversation was a torture. He turned through a yew arch into the Italian garden, and threw himself wearily into a seat.

"Poor young fellow! He's fair off his nut," whispered Bates.

"What can one expect?" said Farrow. "But we must get busy. Where's Brodie? Do go an' find him."

Bates jerked a thumb toward the house.

"He's in there," he said. "He helped to carry in the Gov'nor. Hasn't left him since."

"He must come at once. He can't do any good now, an' we've lost nearly an hour as it is."

The chauffeur appeared, red-eyed and white-faced. But he understood the urgency of his mission, and soon had the car in movement. Others came – the butler, some gardeners, and men engaged in stables and garage, for the dead banker maintained a large establishment. Farrow explained his plan. They would beat the woods methodically, and the searcher who noted anything "unusual" – the word was often on the policeman's lips – was not to touch or disturb the object or sign in any way, but its whereabouts should be marked by a broken branch stuck in the ground. Of course, if a stranger was seen, an alarm should be raised instantly.

The little party was making for the Quarry Wood, when Jenkins arrived on a bicycle. The first intimation he had received of the murder was the chauffeur's message. There was a telephone between house and lodge, but no one had thought of using it.

"Now, Bates," said Farrow, when the squad of men had spread out in line, "you an' me will take the likeliest line. You ought to know every spot in the covert where it's possible to aim a gun at any one stannin' on top of the steps at The Towers. There can't be many such places. Is there even one? I don't suppose the barefaced scoundrel would dare come out into the open drive. Brodie said Mr. Fenley was shot through the right side while facin' the car, so he bears out both your notion an' Mr. Trenholme's that the bullet kem from the Quarry Wood. What's your idea about it? Have you one, or are you just as much in the dark as the rest of us?"

Bates was sour-faced with perplexity. The killing of his employer was already crystallizing in his thoughts into an irrevocable thing, for the butler had lifted aside the dead man's coat and waistcoat, and this had shown him the ghastly evidences of a wound which must have been instantly fatal. Now, a shrewd if narrow intelligence was concentrated on the one tremendous question, "Who hath done this thing?" He looked so worried that the yellow dog, watching him, and quick to interpret his moods, slouched warily at heel; and Farrow, though agog with excitement, saw that his crony was ill at ease because of some twinge of fear or suspicion.

"Speak out, Jim," he urged, dropping his voice to a confidential pitch, lest one of the others might overhear. "Gimme the straight tip, if you can. It need never be known that it kem from you."

"I've a good berth here," muttered the keeper, with seeming irrelevance.

"Tell me something fresh," said Farrow, quickening with grateful memories of many a pheasant and brace of rabbits reposing a brief space in his modest larder.

"So, if I tell you things in confidence like – "

"I've heard 'em from any one but you."

Bates drew a deep breath, only to expel it fiercely between puffed lips.

"It's this way," he growled. "Mr. Robert an' the ol' man didn't hit off, an' there was a deuce of a row between 'em the other day, Saturday it was. My niece, Mary, was a-dustin' the banisters when the two kem out from breakfast, an' she heerd the Gov'nor say: 'That's my last word on the subjec'. I mean to be obeyed this time.'

"'But, look here, pater,' said Mr. Robert – he always calls his father pater, ye know – 'I reelly can't arrange matters in that offhand way. You must give me time.' 'Not another minute,' said Mr. Fenley. 'Oh, dash it all,' said Mr. Robert, 'you're enough to drive a fellow crazy. At times I almost forget that I'm your son. Some fellows would be tempted to blow their brains out, an' yours, too.'

"At that, Tomlinson broke in, an' grabbed Mr. Robert's arm, an' the Gov'nor went off in the car in a fine ol' temper. Mr. Robert left The Towers on his motor bike soon afterward, an' he hasn't been back since."

Although the fount of information temporarily ran dry, Farrow felt that there was more to come if its secret springs were tapped.

"Did Mary drop a hint as to what the row was about?" he inquired.

"She guessed it had something to do with Miss Sylvia."

"Why Miss Sylvia?"

"She an' Mr. Robert are pretty good friends, you see."

"I see." The policeman saw little, but each scrap of news might fit into its place presently.

"Is that all?" he went on. They were nearing that part of the wood where care must be exercised, and he wanted Bates to talk while in the vein.

"No, not by a long way," burst out the keeper, seemingly unable to contain any longer the deadly knowledge weighing on his conscience. "Don't you try an' hold me to it, Farrow, or I'll swear black an' blue I never said it; but I knew the ring of the shot that killed my poor ol' guv'nor. It was fired from an express rifle, an' there's on'y one of the sort in Roxton, so far as I've ever seen. An' it is, or ought to be, in Mr. Robert's sittin'-room at this very minute. There! Now you've got it. Do as you like. Get Tomlinson to talk, or anybody else, but keep me out of it – d'ye hear?"

"I hear," said Farrow, thrilling with the consciousness that when some dandy detective arrived from the "Yard," he would receive an eye-opener from a certain humble member of the Hertfordshire constabulary. Not that he quite brought himself to believe Robert Fenley his father's murderer. That was going rather far. That would, indeed, be a monstrous assumption as matters stood. But as clues the quarrel and the rifle were excellent, and Scotland Yard must recognize them in that light.

Certainly, this was an unusual case; most unusual. He was well aware of the reputation attached to Robert Fenley, the banker's younger son, who differed from his brother in every essential. Hilton was steady-going, business-like, his father's secretary and right hand in affairs, both in the bank and in matters affecting the estate. Robert, almost unmanageable as a youth, had grown into an exceedingly rapid young man about town. But Roxton folk feared Hilton and liked Robert; and local gossip had deplored Robert's wildness, which might erect an insurmountable barrier against an obviously suitable match between him and Mr. Mortimer Fenley's ward, the rich and beautiful Sylvia Manning.

These things were vivid in the policeman's mind, and he was wondering how the puzzle would explain itself in the long run, when an exclamation from Bates brought his vagrom speculations sharply back to the problem of the moment.

The keeper, of course, as Farrow had said, was making straight for the one place in the Quarry Wood which commanded a clear view of the entrance to the mansion. The two men were skirting the disused quarry, now a rabbit warren, which gave the locality its name; they followed the rising edge of the excavation, treading on a broad strip of turf, purposely freed of encroaching briers lest any wandering stranger might plunge headlong into the pit. Near the highest part of the rock wall there was a slight depression in the ground; and here, except during the height of a phenomenally dry Summer, the surface was always moist.

Bates, who was leading, had halted suddenly. He pointed to three well marked footprints.

"Who's been here, an' not so long ago, neither?" he said, darting ferret eyes now at the telltale marks and now into the quarry beneath or through the solemn aisle of trees.

"Stick in some twigs, an' let's hurry on," said Farrow. "Footprints are first rate, but they'll keep for an hour or two."

Thirty yards away, and somewhat to the right, a hump of rock formed the Mont Blanc of that tiny Alp. From its summit, and from no other part of the wood, they could see the east front of The Towers. In fact, while perched there, having climbed its shoulder with great care lest certain definite tokens of a recent intruder should be obliterated, they discovered a dusty motor car ranged between the doctor's runabout and the Fenley limousine, which had returned.

The doctor and Miss Sylvia Manning were standing on the broad mosaic which adorned the landing above the steps, standing exactly where Mortimer Fenley had stood when he was stricken to death. With them were two strangers: one tall, burly and official-looking; the other a shrunken little man, whose straw hat, short jacket, and clean-shaven face conveyed, at the distance, a curiously juvenile aspect.

Halfway down the steps were Hilton Fenley and Brodie, and all were gazing fixedly at that part of the wood where the keeper and the policeman had popped into view.

"Hello!" said Bates. "Who is that little lot?"

Clearly, he meant the big man and his diminutive companion. Farrow coughed importantly.

"That's Scotland Yard," he said.

"Who?"

"Detectives from the Yard. Mr. Hilton telephoned for 'em. An' wot's more, they're signalin' to us."

"They want us to go back," said Bates.

"Mebbe."

"There can't be any doubt about it." And, indeed, only a blind man could have been skeptical as to the wishes of the group near the door.

"I'm goin' through this wood first," announced Farrow firmly. "Mind how you get down. Them marks may be useful. I'm almost sure the scoundrel fired from this very spot."

"Looks like it," agreed Bates, and they descended.

Five minutes later they were in the open park, where their assistant scouts awaited them. None of the others had found any indication of a stranger's presence, and Farrow led them to the house in Indian file, by a path.

"Scotland Yard is on the job," he announced. "Now we'll be told just wot we reelly ought to have done!"

He did not even exchange a furtive glance with Bates, but, for the life of him he could not restrain a note of triumph from creeping into his voice. He noticed, too, that Tomlinson, the butler, not only looked white and shaken, which was natural under the circumstances, but had the haggard aspect of a stout man who may soon become thin by stress of fearsome imaginings.

Farrow did not put it that way.

"Bates is right," he said to himself. "Tomlinson has something on his chest. By jingo, this affair is a one-er an' no mistake!"

At any rate, local talent had no intention of kowtowing too deeply before the majesty of the "Yard," for the Chief of the Criminal Investigation Department himself could have achieved no more in the time than Police Constable Farrow.