"Anyhow, I'd rather have you than Scotland Yard, Mr. Holmes," said he. "If the Yard gets called into a case, then the local loses all credit for success and may be blamed for failure. Now, you play straight, so I've heard."

"I need not appear in the matter at all," said Holmes to the evident relief of our melancholy acquaintance. "If I can clear it up I don't ask to have my name mentioned."

"Well, it's very handsome of you, I am sure. And your friend, Dr. Watson, can be trusted, I know. Now, Mr. Holmes, as we walk down to the place there is one question I should like to ask you. I'd breathe it to no soul but you." He looked round as though he hardly dare utter the words. "Don't you think there might be a case against Mr. Neil Gibson himself?"

"I have been considering that."

"You've not seen Miss Dunbar. She is a wonderful fine woman in every way. He may well have wished his wife out of the road. And these Americans are readier with pistols than our folk are. It was his pistol, you know."

"Was that clearly made out?"

"Yes, sir. It was one of a pair that he had."

"One of a pair? Where is the other?"

"Well, the gentleman has a lot of firearms of one sort and another. We never quite matched that particular pistol – but the box was made for two."

"If it was one of a pair you should surely be able to match it."

"Well, we have them all laid out at the house if you would care to look them over."

"Later, perhaps. I think we will walk down together and have a look at the scene of the tragedy."

This conversation had taken place in the little front room of Sergeant Coventry's humble cottage which served as the local police-station. A walk of half a mile or so across a wind-swept heath, all gold and bronze with the fading ferns, brought us to a side-gate opening into the grounds of the Thor Place estate. A path led us through the pheasant preserves, and then from a clearing we saw the widespread, half-timbered house, half Tudor and half Georgian, upon the crest of the hill. Beside us there was a long, reedy pool, constricted in the center where the main carriage drive passed over a stone bridge, but swelling into small lakes on either side. Our guide paused at the mouth of this bridge, and he pointed to the ground.

"That was where Mrs. Gibson's body lay. I marked it by that stone."

"I understand that you were there before it was moved?"

"Yes, they sent for me at once."

"Who did?"

"Mr. Gibson himself. The moment the alarm was given and he had rushed down with others from the house, he insisted that nothing should be moved until the police should arrive."

"That was sensible. I gathered from the newspaper report that the shot was fired from close quarters."

"Yes, sir, very close."

"Near the right temple?"

"Just behind it, sir."

"How did the body lie?"

"On the back, sir. No trace of a struggle. No marks. No weapon. The short note from Miss Dunbar was clutched in her left hand."

"Clutched, you say?"

"Yes, sir, we could hardly open the fingers."

"That is of great importance. It excludes the idea that anyone could have placed the note there after death in order to furnish a false clue. Dear me! The note, as I remember, was quite short:

"I will be at Thor Bridge at nine o'clock."

"G. DUNBAR.

Was that not so?"

"Yes, sir."

"Did Miss Dunbar admit writing it?"

"Yes, sir."

"What was her explanation?"

"Her defense was reserved for the Assizes. She would say nothing."

"The problem is certainly a very interesting one. The point of the letter is very obscure, is it not?"

"Well, sir," said the guide, "it seemed, if I may be so bold as to say so, the only really clear point in the whole case."

Holmes shook his head.

"Granting that the letter is genuine and was really written, it was certainly received some time before – say one hour or two. Why, then, was this lady still clasping it in her left hand? Why should she carry it so carefully? She did not need to refer to it in the interview. Does it not seem remarkable?"

"Well, sir, as you put it, perhaps it does."

"I think I should like to sit quietly for a few minutes and think it out." He seated himself upon the stone ledge of the bridge, and I could see his quick gray eyes darting their questioning glances in every direction. Suddenly he sprang up again and ran across to the opposite parapet, whipped his lens from his pocket, and began to examine the stonework.

"This is curious," said he.

"Yes, sir, we saw the chip on the ledge. I expect it's been done by some passerby."

The stonework was gray, but at this one point it showed white for a space not larger than a sixpence. When examined closely one could see that the surface was chipped as by a sharp blow.

"It took some violence to do that," said Holmes thoughtfully. With his cane he struck the ledge several times without leaving a mark. "Yes, it was a hard knock. In a curious place, too. It was not from above but from below, for you see that it is on the lower edge of the parapet."

"But it is at least fifteen feet from the body."

"Yes, it is fifteen feet from the body. It may have nothing to do with the matter, but it is a point worth noting. I do not think that we have anything more to learn here. There were no footprints, you say?"

"The ground was iron hard, sir. There were no traces at all."

"Then we can go. We will go up to the house first and look over these weapons of which you speak. Then we shall get on to Winchester, for I should desire to see Miss Dunbar before we go farther."

Mr. Neil Gibson had not returned from town, but we saw in the house the neurotic Mr. Bates who had called upon us in the morning. He showed us with a sinister relish the formidable array of firearms of various shapes and sizes which his employer had accumulated in the course of an adventurous life.

"Mr. Gibson has his enemies, as anyone would expect who knew him and his methods," said he. "He sleeps with a loaded revolver in the drawer beside his bed. He is a man of violence, sir, and there are times when all of us are afraid of him. I am sure that the poor lady who has passed was often terrified."

"Did you ever witness physical violence towards her?"

"No, I cannot say that. But I have heard words which were nearly as bad – words of cold, cutting contempt, even before the servants."

"Our millionaire does not seem to shine in private life," remarked Holmes as we made our way to the station. "Well, Watson, we have come on a good many facts, some of them new ones, and yet I seem some way from my conclusion. In spite of the very evident dislike which Mr. Bates has to his employer, I gather from him that when the alarm came he was undoubtedly in his library. Dinner was over at 8:30 and all was normal up to then. It is true that the alarm was somewhat late in the evening, but the tragedy certainly occurred about the hour named in the note. There is no evidence at all that Mr. Gibson had been out of doors since his return from town at five o'clock. On the other hand, Miss Dunbar, as I understand it, admits that she had made an appointment to meet Mrs. Gibson at the bridge. Beyond this she would say nothing, as her lawyer had advised her to reserve her defense We have several very vital questions to ask that young lady, and my mind will not be easy until we have seen her. I must confess that the case would seem to me to be very black against her if it were not for one thing."