"That will do, Mr. Gelston," broke in the major. "When we want you again, we will let you know. Durbin, see Mr. Gelston out."
I was left alone with the major and the district attorney.
There was a moment's silence, during which my own heart beat so loud that I was afraid they would hear it. Since taking up Miss Tuttle's cause I had never really believed in Mr. Jeffrey's innocence in spite of the alibi he had brought forward, and now I expected to hear these men utter the same conviction. The major was the first to speak. Addressing the district attorney, he remarked: "This will strengthen your case very materially. We have proof now that Mrs. Jeffrey's death was actually determined upon. If Miss Tuttle had not shot her, he would. I wonder if it was a relief to him on reaching his door to find that the deed was done."
I could not suppress my surprise.
"Miss Tuttle!" I repeated. "Is it so unmistakably evident that Mr. Jeffrey did not get to the Moore house in time to do the shooting himself?"
The major gave me a quick look.
"I thought you considered Miss Tuttle the guilty one."
I felt that the time had come to show my colors.
"I have changed my mind," said I. "I can give you no good reason for this; something in the woman herself, I suppose. She does not look nor act like a criminal. While not desirous of raising myself in opposition to the judgment of those so greatly my superior in all respects, I have had this feeling, and I am courageous enough to avow it. And yet, if Mr. Jeffrey could not have left the cemetery gates and reached the Moore house in time to fulfil all the conditions of this tragedy, the case does look black against the woman. She admits to having been there when the pistol was fired, unless—"
"Unless what? You have something new to tell us. That I have seen ever since you entered the room. What is it?"
I cast a glance at the door. Should I be able to finish my story before Durbin returned? I thought it possible, and, though still upset by this new evidence, which I could now see was not entirely in Miss Tuttle's favor, I spoke up with what spirit I might.
"I have just come from spending another night in the Moore house. All the efforts heretofore made to exhaust its secrets have been founded upon a theory that has brought us nowhere. I had another in mind, and I was anxious to test it before resting from all further attempt to solve this riddle. And it has not failed me. By pursuing a clue apparently so trivial that I allowed it to go neglected for weeks, I have come upon the key to the many mysterious crimes which have defiled the library hearthstone. And where do you think it lies? Not in the hearthstone itself and not in the floor under the settle; not, in fact, in the library at all, but in the picture hanging upstairs in the southwest chamber."
"The picture! that faded-out sketch, fit only for the garret?"
"Yes. To you and to most people surveying it, it is just what you say and nothing more. But to the initiated few—pray Heaven they may have been few—it is writing, conveying secret instructions. The whole combination of curves which go to make up this sketch is a curious arrangement of words inscribed with the utmost care, in the smallest of characters. Viewed with a magnifying glass, the uncertain outlines of a shadowy face surmounted by a mass of piled-up hair resolve themselves into lines of writing, the words of which are quite intelligible and full of grim and unmistakable purpose. I have read those lines; and what is more, I have transcribed them into plain copy. Will you read them? They contain a most extraordinary confession; a confession that was manifestly intended as a warning, but which unfortunately has had very different results. It may explain the death of the man from Denver, even if it cast no light upon the other inexplicable features of the remarkable case we are considering."
As I spoke I laid open on the table before me the transcription of which I spoke. Instantly the two men bent over it. When they looked up again, their countenances showed not excitement only but appreciation; and in the one minute of triumph which I then enjoyed, all that had wounded or disturbed me in the past was forgotten.
"You are a man in a thousand," was the major's first enthusiastic comment; at which I was conscious of regretting, with very pardonable inconsistency, that Durbin had not returned in time to hear these words.
The major now proposed that we should go at once to the old house. "A family secret like this does not crop up every day even in a city so full of surprises as Washington. We will hunt for the spring under the closet drawers and see what happens, eh? And on our way there"—here he turned to me "I should like to hear the particulars concerning the little clue just mentioned. By the way, Mr. Jeffrey's interest in this old drawing is now explained. He knew its diabolical secret."
This was self-evident, and my heart was heavy for Miss Tuttle, who seemed to be so deep in her brother-in-law's confidence.
It grew still heavier when Durbin, joining us, added his incredulity to the air of suspicion assumed by the others. Through all the explanations I now entered into, I found myself inwardly repeating with somewhat forced iteration, "I will not believe her guilty under any circumstances. She carries the look of innocence, and innocent she must be proved, whatever the result may be to Francis Jeffrey."
To such an extent had I been influenced by the lofty expression which I had once surprised on her face.
Had Mr. David Moore been sitting open-eyed behind his vines that morning, he would have been much surprised to see so many of his natural enemies intrude on his property at so early an hour. But, happily, he had not yet risen, and we were able to enter upon our investigations without being watched or interrupted by him.
Our first move was to go in a body to the southwest chamber, take down the picture, examine it with a magnifying-glass and satisfy ourselves that the words I had picked out of its mazy lines were really to be found there. This done and my veracity established, we next proceeded to the closet where, according to the instructions embodied in this picture, the secret spring was to be found by which some unknown and devilish machinery would be released in the library below.
To my great satisfaction the active part in this experiment was delegated to me. Durbin continued to be a mere looker-on. Drawing out the two large drawers from their place at the end of this closet, I set them aside. Then I hunted for and found the small loophole which we had been told afforded a glimpse of the library hearthstone; but seeing nothing through it, I called for a light to be placed in the room below.
I heard Durbin go down, then the major, and finally, the district attorney. Nothing could stay their curiosity now, not even the possibility of danger, which as yet was a lurking and mysterious one. But when a light shot up from below, and the irregular opening before me became a loophole through which I could catch a very wide glimpse of the library beneath, I found that it was not necessary for me to warn them to keep away from the hearth, as they were all clustered very near the door—a precaution not altogether uncalled for at so hazardous a moment.
"Are you ready?" I called down.
"Ready!" rose in simultaneous response from below.
"Then look out!"
Reaching for the spring cleverly concealed in the wall at my right I vigorously pressed it.
The result was instantaneous. Silently, but with unerring certainty, something small, round, and deadly, fell plumb from the library ceiling to where the settle had formerly stood against the hearthstone. Finding nothing there but vacancy to expend itself upon, it swung about for a moment on what looked like a wire or a whip-cord, then slowly came to rest within a foot or so from the floor.