“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 defence. 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.”

“And what is that, Holmes?”

“The finding of the pistol in her wardrobe.”

“Dear me, Holmes!” I cried, “that seemed to me to be the most damning incident of all.”

“Not so, Watson. It had struck me even at my first perfunctory reading as very strange, and now that I am in closer touch with the case it is my only firm ground for hope. We must look for consistency. Where there is a want of it we must suspect deception.”

“I hardly follow you.”

“Well now, Watson, suppose for a moment that we visualize you in the character of a woman who, in a cold, premeditated fashion, is about to get rid of a rival. You have planned it. A note has been written. The victim has come. You have your weapon. The crime is done. It has been workmanlike and complete. Do you tell me that after carrying out so crafty a crime you would now ruin your reputation as a criminal by forgetting to fling your weapon into those adjacent reed-beds which would forever cover it, but you must needs carry it carefully home and put it in your own wardrobe, the very first place that would be searched? Your best friends would hardly call you a schemer, Watson, and yet I could not picture you doing anything so crude as that.”

“In the excitement of the moment?”

“No, no, Watson, I will not admit that it is possible. Where a crime is coolly premeditated, then the means of covering it are coolly premeditated also. I hope, therefore, that we are in the presence of a serious misconception.”