“Well, it seems to be fairly well established that the shot was fired from close to that clump of gorse. How did the murderer know that the deceased was going to be so obliging as to sit down on that seat in his garden at just that time of day?”

“He didn't,” replied Hemingway. “He probably didn't even know he was going to have the luck to find Warrenby in the garden at all. You think it over, Horace! If the murder was committed by one of the people at that tennis-party, he knew Miss Warrenby wasn't in the house, and it's a safe bet he also knew it was the maid's day out. He may have thought Warrenby was likely to be in the garden on a hot June evening, but it wouldn't have mattered if he hadn't been. You've seen the house: it came out good and clear in one of the photographs. It's got long French windows, which would be bound to be standing open on a day like that. As for the time, that didn't matter either. If the Pole did it, obviously he couldn't have, because he must have had to lie up, waiting for Warrenby to show himself, for nearly a couple of hours. Which is one reason why I don't, so far, much fancy young Ladislas.”

“The more I think of it, the more I can't help feeling it must have been someone who wasn't at that party at all,” said Harbottle. “If it was one of them, where was the rifle? If it had been a cricket-match, we could assume it had been all the time in the murderer's cricket-bag; but what would anyone take to a tennis-party which could possibly hold a rifle?”

“Nothing, of course. That's quite a good point, Horace, but there's an easy answer to it. If the murderer was at that party, he knew the locality well, and somewhere between the Haswells' place and Warrenby's he had that rifle cached where he could pick it up easily at the right moment. You're a countryman! You ought to know it isn't very difficult, where you've got woods, and hedges, and ditches. I'd choose a ditch, myself, at this time of the year, when the grass is long, and everything a regular tangle of dog-roses, and meadowsweet, and the rest of it.”

“Yes,” admitted Harbottle. “If it turns out to be like you describe.”

“Well, we shall soon see,” said Hemingway. “Carsethorn's coming round here before six to pick us up, and take us out to Thornden. They've had a chap keeping an eye on Fox House ever since yesterday, and Miss Warrenby wants him to be removed as soon as convenient, on account of the maid, who says she can't stay there with a policeman on the premises. Nice reputation the police have got in these parts!”

“People don't like having police in the house,” said the Inspector seriously. “It isn't respectable.”

“Well, once I've had a look at the scene, and gone through any private papers there may be in the desk, he can be taken off. I don't want to lose that girl a maid, even if she did murder her uncle, which we don't know, after all. Warrenby had a London solicitor, but beyond having drawn up his Will he doesn't seem to have done much for him. He's fishing in Scotland at the moment, anyway: the Chief Constable had a word with his clerk, and then with Miss Warrenby, who said she was sure her uncle wouldn't have minded us doing whatever it was our duty to do. So we don't have to lug this bird back from Scotland before we can get on with the job.”

“What about the Will?” objected Harbottle.

“That was in Warrenby's safe at his office. This London lawyer is one of the executors, according to what his clerk told the Colonel, and Miss Warrenby's the other. Which made it all plain sailing. It was opened in her presence, and I can go through any papers there may be, in her presence, too. And when we get through at Fox House, we'll call on Mr. Drybeck. We don't want to start a scandal in his office, by going to interview him there tomorrow.”