deposit box rented by a Mrs. Altonstall, who lived on West Fifty-eighth Street.
I looked at my watch. It was almost five o'clock, but I concluded to go at once to call on the lady.
As I went up there in a taxicab, my brain was in a whirl. The key of a safe deposit box, not Mr. Pembroke's own, but belonging to a woman! found in his room, after a crime which it was assumed was committed by a woman!
Who was Mrs. Altonstall? And why should she murder Robert Pembroke? This question opened such a wide field for speculation that it was unanswerable. Had the deed really been done by a woman? And was I, even now, about to verify this?
I felt an uncertainty about proceeding. Ought I not to place the whole matter in the hands of the Coroner? Was I not taking too much upon myself to investigate alone this new evidence?
But, I reasoned, delay might be dangerous. If the Coroner were to postpone until next day an interview with this woman, might she not have already effected her escape? Was it not wiser that I should go there at once, and lose no time in securing any possible information?
At any rate, I went, resolved to take the consequences of my deed, whatever they might be.
The address given me proved to be a large and handsome apartment house. At the office I inquired for Mrs. Altonstall and being informed that she was at home, I sent up my card, for I judged that the most open and straightforward measures were the best.
A moment later I was informed that Mrs. Altonstall would see me, and entering the elevator I went at once to her apartment.
The general effects of grandeur throughout the house and the elegance of Mrs. Altonstall's own room, made me wonder afresh if I could by any possibility be on the track of a criminal. Surely, the criminal classes did not live in a style implying such respectability and aristocracy as these surroundings seemed to indicate. But of course I realized that a woman who could commit murder was not necessarily found among the criminal classes, and indeed, being an exceptional individual, might be looked for in any setting.
But when my hostess entered, and I saw a sweet-faced, middle-aged lady, of gentle manner and gracious mien, walk toward me, I felt the blood rush to my face, and I stood consumed with dismay and confusion.
"Mrs. Altonstall?" I said, conquering my embarrassment.
"Yes," she said, in one of the sweetest voices I ever heard. "This is Mr. Landon? you wanted to see me?"
Surely with such a queen of women as this, frankness and truth were the only lines to follow.
"Yes, Mrs. Altonstall," I said; "I am a lawyer, and I am at present investigating a serious case. In connection with it, there has been found a key, which I have been informed belongs to you. Will you kindly say if this is so?"
As I spoke, I handed her the key. I need not say that at the first glimpse of that serene, gracious face, all thought of her implication in our affair instantly vanished. Presumably, too, the key was not hers, there had been a mistake, somehow.
As she took the key, she looked at me with a bewildered surprise. "Why, yes, Mr. Landon," she said, "this is my key. May I ask where you obtained it?"
I hesitated, for it seemed a terrible thing to tell this queenly lady where her key had been found. And yet the situation was so inexplicable, that I must solve it if possible.
"I will tell you in a moment, Mrs. Altonstall," I said, slowly, "but first I must ask you if you know Mr. Robert Pembroke?"
"Robert Pembroke?" she repeated; "no, I never heard the name. Who is he?"
The unruffled calm and the straightforward gaze that met my own eyes, so frankly, was so convincing of her absolute veracity, that just for an instant the thought flashed through my mind that it might be merely the perfection of acting.
But the next instant I knew better, for no human being could so simulate utter ignorance of a subject, if she had guilty knowledge of it. Moreover, since she knew nothing of Robert Pembroke, I instantly concluded not to tell her of the tragedy, but to inquire further concerning the key.
"Since you do not know him, Mrs. Altonstall, let us not discuss him. Will you tell me how you lost possession of this key, since it is yours?"
"I gave it to my lawyer, Mr. Leroy," she replied. "It was necessary that he should get some of my papers from the Safe Deposit Company, and it has been arranged that he shall have access to my box on presentation of my key. I am a widow, Mr. Landon, and as I have various financial interests, it is necessary for me frequently to employ the services of a lawyer. Mr. Leroy attends to all such affairs for me."
"Do you mean Mr. Graham Leroy?" I asked, very gravely, for the introduction of his name stirred up all sorts of conjectures.
"Yes," she replied, "he is an able lawyer, as well as a kind friend."
"I'm acquainted with Mr. Leroy," I responded, "and I quite agree with your estimate of him. When did you give him the key, Mrs. Altonstall?"
"About four or five days ago; last Saturday, to be exact. There was no immediate haste about my papers, he was to attend to the matter at his convenience. May I ask where the key was found?"
I disliked extremely to rehearse the details of the case, and I knew it was in no way necessary. Of course the key belonged to this lady; aside from her own word, the bank had told me so. But her question must be answered.
"It was found in the apartment of Mr. Robert Pembroke," I said; but immediately added, as she looked slightly startled, "I think, however, it is a matter of easy explanation. Graham Leroy is also Mr. Pembroke's lawyer, and he must have dropped the key there while calling on Mr. Pembroke."
"Unpardonable carelessness," she said, and I saw that the sweet placid face could assume an expression of indignation upon occasion.
"That, madam, you must say to Mr. Leroy. I am sorry to have troubled you in the matter, and I thank you for your courtesy to me."
"But you will leave my key with me?" she said, as I was about to take leave.
"I think I cannot do that, Mrs. Altonstall," I said, "as it was entrusted to me by official authority. But I promise to return it to Mr. Leroy, which, I trust will be satisfactory to you."
The lady agreed to this, though a little unwillingly, and I went away, newly perplexed at this most recent development.
So then, Graham Leroy had been in possession of this key. So then, he must have left it in Robert Pembroke's bedroom. He would not have done this purposely, of course, therefore he must have dropped it there without knowing it. It was found on Robert Pembroke's bed. Not under the pillow,—the suggestion that it had been under the pillow was mere supposition. It might have been dropped on the bed from the pocket of one leaning over the sleeping man.
But Graham Leroy! the thought was preposterous!
And then again, the old, ever insoluble question,—how could he get in?
But really it was scarcely more impossible to conclude how he got in, than to imagine Graham Leroy getting in at all, except in correct and ordinary fashion.
My brain worked quickly. To be sure, he might have dropped the key in that room when calling there, as he did, on Tuesday night.
But I had asked Charlotte when Mr. Pembroke's bedroom had last been swept, and she had told me that she had swept it Wednesday morning, and had then emptied the waste basket. This had seemed to me to prove that all the clues I had found, had been brought into the room after that sweeping. But again, the key being found in the bed it had nothing to do with the sweeping of the room. However, Charlotte could not have made up the bed without seeing the key, so the only possible deduction was that Mrs. Altonstall's key had been left in Robert Pembroke's room after noon of Wednesday, the day he was murdered!
It was all too much for me! I had undertaken to trace the clues that I had myself found, but if they were to lead me to such extraordinary discoveries as this, I felt I must appeal to more practical detective