"If I had guessed you were coming here so promptly it would have been in ashes an hour ago," said Trenholme, grimly insistent on sacrifice. With a disconcerting change of manner the detective promptly assumed a dryly official attitude. "A mighty good job for you that nothing of the sort occurred," he said. "Your picture is your excuse, Mr. Trenholme. What plea could you have urged for spying on a lady in an open-air bath if deprived of the only valid one?" "Look here!" came the angry retort. "You seem to be a pretty fair judge of a drawing, but you choose your words rather carelessly. Just now you described me as 'hidden' behind that clump of trees, and again you accuse me of 'spying.' I won't stand that sort of thing from Scotland Yard, nor from Buckingham Palace, if it comes to that." Furneaux instantly reverted to his French vein. His shrug was eminently Parisian. "You misunderstand me. I allege neither hiding nor spying on your part. Name of a good little gray man! The President of the Royal Academy would hide and spy for a month if he could palliate his conduct by that picture. But, given no picture, what is the answer? Reflect calmly, Mr. Trenholme, and you'll see that mine are words of wisdom. Burn that canvas, and you cut a sorry figure in the witness box. Moreover, suppose you treat the law with disdain, how do you propose explaining your actions to Miss Sylvia Manning?" "In all probability, I shall never meet the lady." "Oh, won't you, indeed! I have the honor to request you to meet her tomorrow morning by the shore of that sylvan lake at nine fifteen, sharp. And kindly bring both sketches with you. Only, for goodness' sake, keep this one covered with a water-proof wrap if the weather breaks, which it doesn't look like doing at this moment. Now, Mr. Trenholme, take the advice of a dried-up chip of experience like me, and be sensible. One word as to actualities. I'm told you didn't see anything in the park which led you to believe that a crime had been committed?" "Not a thing. I heard the gunshot, and noted where it came from, but so far as I could ascertain, the only creatures it disturbed were some rabbits, rooks and pheasants." "Ah! Where did the pheasants show up?" "Out of the wood, close to the spot where the rifle was fired." "How many?" "How many what?" "Pheasants." "A brace. They flew right across the south front of the house to a covert on the west side. Is that an important detail?" "When you hear the evidence you may find it so," commented Furneaux. "Why do you say 'rifle'? Why not plain 'gun'?" "Because any one who has handled both a rifle and a shotgun can recognize the difference in sound. The explosive force of the one is many times greater than that of the other." "Are you, too, an expert marksman?" "I can shoot a bit. Hardly an expert, perhaps, seeing that I haven't used a gun during the past five years. If you know France, Mr. Furneaux, you'll agree that British ideas of sport----"