“You mean—how did it come to be there unless it was put there!” said Blick. “Of course, it was dropped in there by somebody who wanted to get rid of it!—how else could it have come there? Let’s suppose that that somebody was the actual murderer. He came away from the scene of his crime, crossed the hill-side in front of Woodland Cottage——” “More likely, followed the line of the coppice behind it,” suggested the Chief Constable, with a glance at a big map hung on the wall by his desk. “He’d be hidden from view, that way.” “Well, that way, then,” agreed Blick. “Anyhow, he comes to Deep Lane. Going down there, he resolves to get rid of his weapon. There are any amount of holes in the banks there, behind the banks and the undergrowth at the foot of the high hedgerows. He pushes aside the bushes and drops his weapon into one of the deepest holes. And there it might have lain for ages—if it hadn’t been for Fransemmery’s dog.” “Well, you’ve found it, anyway, and the next thing to do is to find out to whom it belongs,” said the Chief Constable. “Stiff business, but it can be done.” He picked up the automatic pistol, which Blick had laid before him, and looked at it with speculative eyes. “Seems to be brand-new,” he remarked. “I wonder if it was bought from anybody about here?” “I’m going to enquire into that at once,” answered Blick. “Such things can be bought in Selcaster, I suppose?” “You can buy sporting guns and revolvers in plenty,” replied the Chief Constable. “And no doubt things of this sort. There are two or three gunsmiths in the city, and of course there are ironmongers and hardware dealers who sell fire-arms.” He picked up a small volume from amongst a row of reference books on his desk. “Local directory,” he explained. “You’ll find names and addresses there.” Blick made a list of names, and went out on a voyage of discovery. He called on half a dozen tradesmen, who, once they were aware of his identity and business, and had been pledged to secrecy, were only too ready to chat confidentially with a famous London detective. But they could give him no information—not one had seen the automatic pistol before. It was not until he made his last call that he got any help or signs of it. Then, however, the shopkeeper was somewhat doubtful as to whether he hadn’t seen that particular article before, some time or other. “I’ve an idea that we may have supplied that,” he remarked. “But I’ll tell you what—you look in here about six o’clock this evening, or any time between that and seven. For this reason: I have a branch shop at Chilhampton, and my manager is there today, and won’t be back till late this afternoon. Now, if we ever sold that pistol—as I fancy we did—he’ll know all about it, and who the purchaser was; he’s more up in that department than I am. Come again at six or thereabouts; if I’m not in, ask for Mr. Waters, and tell him what you’ve told me. You can trust him.”