"Yes, you had to see Mme. Mergy home."

"Just so, and to look after her. You can understand the poor thing's despair... Her son Gilbert so near death... And such a death!... At that time we could only hope for a miracle... an impossible miracle. I myself was resigned to the inevitable... You know as well as I do, when fate shows itself implacable, one ends by despairing."

"But I thought," observed Prasville, "that your intention, on leaving me, was to drag Daubrecq's secret from him at all costs."

"Certainly. But Daubrecq was not in Paris."

"Oh?"

"No. He was on his way to Paris in a motor-car."

"Have you a motor-car, M. Nicole?"

"Yes, when I need it: an out-of-date concern, an old tin kettle of sorts. Well, he was on his way to Paris in a motor-car, or rather on the roof of a motor-car, inside a trunk in which I packed him. But, unfortunately, the motor was unable to reach Paris until after the execution. Thereupon... "

Prasville stared at M. Nicole with an air of stupefaction. If he had retained the least doubt of the individual's real identity, this manner of dealing with Daubrecq would have removed it. By Jingo! Reference To pack a man in a trunk and pitch him on the top of a motorcar!... No one but Lupin would indulge in such a freak, no one but Lupin would confess it with that ingenuous coolness!

"Thereupon," echoed Prasville, "you decided what?"

"I cast about for another method."

"What method?"

"Why, surely, monsieur le secretaire-genera1, you know as well as I do!"

"How do you mean?"

"Why, weren't you at the execution?"

"I was."

"In that case, you saw both Vaucheray and the executioner bit, one mortally, the other with a slight wound. And you can't fail to see... "

"Oh," exclaimed Prasville, dumbfounded, "you confess it? It was you who fired the shots, this morning?"

"Come, monsieur le secretaire-general, think! What choice had I? The list of the Twenty-seven which you examined was a forgery. Daubrecq, who possessed the genuine one, would not arrive until a few hours after the execution. There was therefore but one way for me to save Gilbert and obtain his pardon; and that was to delay the execution by a few hours."

"Obviously."

"Well, of course. By killing that infamous brute, that hardened criminal, Vaucheray, and wounding the executioner, I spread disorder and panic; I made Gilbert's execution physically and morally impossible; and I thus gained the few hours which were indispensable for my purpose."

"Obviously," repeated Prasville.

"Well, of course," repeated Lupin, "it gives us all - the government, the president and myself - time to reflect and to see the question in a clearer light. What do you think of it, monsieur le secretaire-general?"

Prasville thought a number of things, especially that this Nicole was giving proof, to use a vulgar phrase, of the most infernal cheek, of a cheek so great that Prasville felt inclined to ask himself if he was really right in identifying Nico1e with Lupin and Lupin with Nicole.

"I think, M. Nicole, that a man has to be a jolly good shot to kill a person whom he wants to kill, at a distance of a hundred yards, and to wound another person whom he only wants to wound."

Holmes sat for some time in silent thought. He had lit the oldest and foulest of his pipes.

“I am not clear yet what you want me to do in this matter, Mr. Mason,” he said at last. “Can’t you make it more definite?”

“Perhaps this will make it more definite, Mr. Holmes,” said our visitor.

He took a paper from his pocket, and, unwrapping it carefully, he exposed a charred fragment of bone.

Holmes examined it with interest.

“Where did you get it?”

“There is a central heating furnace in the cellar under Lady Beatrice’s room. It‘s been off for some time, but Sir Robert complained of cold and had it on again.

Harvey runs it — he’s one of my lads. This very morning he came to me with this which he found raking out the cinders. He didn’t like the look of it.”

“Nor do I,” said Holmes. “What do you make of it, Watson?”

It was burned to a black cinder, but there could be no question as to its anatomical significance.

“It’s the upper condyle of a human femur,” said I.

“Exactly!” Holmes had become very serious. “When does this lad tend to the furnace?”

“He makes it up every evening and then leaves it.”

“Then anyone could visit it during the night?”

“Yes, sir.”

“Can you enter it from outside?”

“There is one door from outside. There is another which leads up by a stair to the passage in which Lady Beatrice’s room is situated.”

“These are deep waters, Mr. Mason; deep and rather dirty. You say that Sir Robert was not at home last night?”

“No, sir.”

“Then, whoever was burning bones, it was not he.”

“That’s true, sir.”

“What is the name of that inn you spoke of?”

“The Green Dragon.”

“Is there good fishing in that part of Berkshire?” The honest trainer showed very clearly upon his face that he was convinced that yet another lunatic had come into his harassed life.

“Well, sir, I’ve heard there are trout in the mill-stream and pike in the Hall lake.”

“That’s good enough. Watson and I are famous fishermen — are we not, Watson? You may address us in future at the Green Dragon. We should reach it to-night. I need not say that we don’t want to see you, Mr. Mason, but a note will reach us, and no doubt I could find you if I want you. When we have gone a little farther into the matter I will let you have a considered opinion.”

Thus it was that on a bright May evening Holmes and I found ourselves alone in a first-class carriage and bound for the little “halt-on-demand” station of Shoscombe. The rack above us was covered with a formidable litter of rods, reels, and baskets. On reaching our destination a short drive took us to an old-fashioned tavern, where a sporting host, Josiah Barnes, entered eagerly into our plans for the extirpation of the fish of the neighbourhood.