The Inspector was growing very red, but ere he had time to speak Harley continued:

"The first of these three persons to have heard a shot fired at the end of the garden would have been Ah Tsong, and not Mrs. Camber, whose room is upstairs and in the front of the house. If it had been fired by Mr. Camber from the spot upon which we now stand, he would still have been in the garden at the moment when Mrs. Camber was ringing the bell for Ah Tsong. Mr. Camber must therefore have returned from the end of the garden to the study, and have pa.s.sed Ah Tsong's room-unheard by the occupant-between the time that the bell rang and the time that Ah Tsong went upstairs. This I submit to be impossible. There is an alternative: it is that he slipped in whilst Ah Tsong, standing on the landing above, was receiving his mistress's orders. I submit that the alternative is also impossible. We thus eliminate Mr. Camber from the case, as I have already mentioned."

"Eliminate-eliminate!" cried the Inspector, beginning to recover power of speech. "Do you think you can fuddle me with a ma.s.s of words, Mr. Harley? Allow me to point out to you, sir, that you are in no way officially a.s.sociated with this matter."

"You have already drawn my attention to the fact, Inspector, but it can do no harm to jog my memory."

Harley spoke entirely without bitterness, and I, who knew his every mood, realized that he was thoroughly enjoying himself. Therefore I knew that at last he had found a clue.

"I may add, Inspector," said he, "that upon further reflection I have also eliminated Ah Tsong from the case. I forgot to mention that he lacks the first and second fingers of his right hand; and I have yet to meet the marksman who can shoot a man squarely between the eyes, by moonlight, at a hundred yards, employing his third finger as trigger- finger. There are other points, but these will be sufficient to show you that this case is more complicated than you had a.s.sumed it to be."

Inspector Aylesbury did not deign to reply, or could not trust himself to do so. He turned and made his way back to the house.

CHAPTER XXIV

AN OFFICIAL MOVE

We reentered the study to find Mrs. Camber sitting in a chair very close to her husband. Inspector Aylesbury stood in the open doorway for a moment, and then, stepping back into the hall:

"Sergeant Butler," he said, addressing the man who waited there.

"Yes, sir."

"Go out to the gate and get Edson to relieve you. I shall want you to go back to headquarters in a few minutes."

"Very good, sir."

I scented what was coming, and as Inspector Aylesbury reentered the room:

"I should like to make a statement," announced Paul Harley, quietly.

The Inspector frowned, and lowering his chin, regarded him with little favour.

"I have not invited any statement from you, Mr. Harley," said he.

"Quite," returned Harley. "I am volunteering it. It is this: I gather that you are about to take an important step officially. Having in view certain steps which I, also, am about to take, I would ask you to defer action, purely in your own interests, for at least twenty-four hours."

"I hear you," said the Inspector, sarcastically.

"Very well, Inspector. You have come newly into this case, and I a.s.sure you that its apparent simplicity is illusive. As new facts come into your possession you will realize that what I say is perfectly true, and if you act now you will be acting hastily. All that I have learned I am prepared to place at your disposal. But I predict that the interference of Scotland Yard will be necessary before this enquiry is concluded. Therefore I suggest, since you have rejected my cooperation, that you obtain that of Detective Inspector Wess.e.x, of the Criminal Investigation Department. In short, this is no one-man job. You will do yourself harm by jumping to conclusions, and cause unnecessary trouble to perfectly innocent people."

"Is your statement concluded?" asked the Inspector.

"For the moment I have nothing to add."

"Oh, I see. Very good. Then we can now get to business. Always with your permission, Mr. Harley."

He took his stand before the fireplace, very erect, and invested with his most official manner. Mrs. Camber watched him in a way that was pathetic. Camber seemed to be quite composed, although his face was unusually pale.

"Now, Mr. Camber," said the Inspector, "I find your answers to the questions which I have put to you very unsatisfactory."

"I am sorry," said Colin Camber, quietly.

"One moment, Inspector," interrupted Paul Harley, "you have not warned Mr. Camber."

Thereupon the long-repressed wrath of Inspector Aylesbury burst forth.

"Then I will warn you, sir!" he shouted. "One more word and you leave this house."

"Yet I am going to venture on one more word," continued Harley, unperturbed. He turned to Colin Camber. "I happen to be a member of the Bar, Mr. Camber," he said, "although I rarely accept a brief. Have I your authority to act for you?"

"I am grateful, Mr. Harley, and I leave this unpleasant affair in your hands with every confidence."

Camber stood up, bowing formally.

The expression upon the inflamed face of Inspector Aylesbury was really indescribable, and recognizing his mental limitations, I was almost tempted to feel sorry for him. However, he did not lack self- confidence, and:

"I suppose you have scored, Mr. Harley," he said, a certain hoa.r.s.eness perceptible in his voice, "but I know my duty and I am not afraid to perform it. Now, Mr. Camber, did you, or did you not, at about twelve o'clock last night--"

"Warn the accused," murmured Harley.

Inspector Aylesbury uttered a choking sound, but:

"I have to warn you," he said, "that your answers may be used as evidence. I will repeat: Did you, or did you not, at about twelve o'clock last night, shoot, with intent to murder, Colonel Juan Menendez?"

Ysola Camber leapt up, clutching at her husband's arm as if to hold him back.

"I did not," he replied, quietly.

"Nevertheless," continued the Inspector, looking aggressively at Paul Harley whilst he spoke, "I am going to detain you pending further enquiries."

Colin Camber inclined his head.

"Very well," he said; "you only do your duty."

The little fingers clutching his sleeve slowly relaxed, and Mrs.

Camber, uttering a long sigh, sank in a swoon at his feet.

"Ysola! Ysola!" he muttered. Stooping he raised the child-like figure. "If you will kindly open the door, Mr. Knox," he said, "I will carry my wife to her room."

I sprang to the door and held it widely open.

Colin Camber, deadly pale, but holding his head very erect, walked in the direction of the hallway with his pathetic burden. Mis-reading the purpose written upon the stern white face, Inspector Aylesbury stepped forward.

"Let someone else attend to Mrs. Camber," he cried, sharply. "I wish you to remain here."

His detaining hand was already upon Camber's shoulder when Harley's arm shot out like a barrier across the Inspector's chest, and Colin Camber proceeded on his way. Momentarily, he glanced aside, and I saw that his eyes were unnaturally bright.

"Thank you, Mr. Harley," he said, and carried his wife from the room.

Harley dropped his arm, and crossing, stood staring out of the window.