"I very much regret having to trouble you, Miss Merlin, at such a time," said Inspector Gatton, "but as the paper lodged with you by the late Sir Eric Coverly may throw some light upon a very dark matter, perhaps you will read it to us."  
I watched the play of expression upon Isobel's face with a depth of sympathy which I cannot attempt to describe. The successive trials which had been imposed upon her in so short a time had robbed her cheeks of their sweet color and there were dark shadows under her eyes. The tumult of my own feelings was such that I was scarcely capable of consistent thought nor had I the moral courage to examine those emotions which stirred so wildly within me.
 
Late on the previous night I had performed the unhappy duty of breaking to her the news of Coverly's dreadful death. I shall never forget that black hour. Her courage, however, under all these trials had been admirable, and although I well knew what it must have cost her, she replied now with perfect composure:
 
"Look—I took it out of my bureau when I heard that you were here, Inspector."
 
She took up from the table a foolscap envelope sealed and having her name written upon it in large and somewhat unsteady characters.
 
"I would suggest," said Gatton, with a delicacy which earned my gratitude, "that you read it yourself first, Miss Merlin. If there is anything helpful in it you can then communicate it to me."
 
I saw Isobel biting her lip hard, but she resolutely tore open the envelope; and leaving her to read the contents, I joined Gatton at the window. We both stood staring out for what seemed a very long time, then:
 
"It is rather long," said Isobel in a low voice.
 
Gatton and I turned together, and saw her, looking even more pale than before, seated by the table holding a sheet of notepaper in her hand. Without glancing at either of us, she began to read as follows, in an even and monotonous voice which I knew she had adopted to hide her emotion:
 
    "This account of my movements on the night of August 6th will only be read in the event of my being falsely adjudged guilty of the murder of my cousin, Marcus Coverly, or in the event of my death.
 
    "On the afternoon of that date I was informed over the telephone that my fiancée, Isobel Merlin, was meeting Sir Marcus the same night at a place called the Red House. The address was given me and I was asked, in case I doubted the word of the speaker, to watch Miss Merlin's movements that evening.
 
    "I had already quarreled with my cousin respecting his unwelcome attentions and although the result did not confirm the promise of the informant, in part at least the information was accurate. I have no idea of the speaker's identity except that the voice was the voice of a woman.
 
    "Not desiring to trust any one in such a matter I, myself, obtained in a remote district the dilapidated garments which are now in the possession of the police and respecting which they have subjected me to close examination. Attired in these and having my face and hands artificially dirtied as a further disguise, I left my chambers by a back entrance about nine o'clock, and not having sufficient confidence in my make-up to enter a public vehicle, walked the whole of the way to College Road.
 
    "I had little difficulty in finding the Red House, but on discovering that it was vacant, I immediately suspected a hoax. However, I determined to wait in the neighborhood until the time at which the voice had warned me the meeting was to take place. There were very few people about and a tremendous downfall of rain drenched me to the skin, for the only shelter afforded was that of the trees bordering the road unless I had been content to abandon my watch.
 
    "Just before the downpour ceased but after it had abated its first fury, I came out from my inadequate shelter and began to walk in the direction of the High Street. I had not gone more than twenty paces when I saw a cab approaching, and the man, seeing my bedraggled figure, slowed up, and to my astonishment asked me the way to the Red House.
 
    "I immediately peered into the cab—to find that the passenger was none other than Marcus Coverly. I had begun to doubt, but at this I doubted no longer. I gave the cabman the necessary directions and, slowly following on foot, I saw from the shelter of the trees on the opposite side of the road, Sir Marcus dismiss the cab and walk up the drive of the empty house.
 
    "He was alone, and since I knew that Miss Merlin had not preceded him, I could only conclude that she would be following later. Accordingly I walked slowly away from the Red House again in the direction of the High Street, and some five minutes later I passed a constable accompanied by a man wearing a light Burberry and a soft hat, whom I knew later (although I failed to recognize him at the time) to have been Mr. Jack Addison.
 
    "I stood at the corner by the High Street until long after midnight. Twice I returned to the Red House and once even penetrated as far as the porch; but although I thought I could detect a light shining out through the shutters of the room on the right of the door, I could not be sure of it and there was no sound of movement within.
 
    "These were my only discoveries, and very wretched and dissatisfied I tramped back to my chambers wondering what the visit of Marcus Coverly to this apparently empty house could mean and why he had remained there, but particularly wondering why the voice had told me this part-truth which had turned me into a spy unavailingly.
 
    "The discovery made at the docks on the following day placed a new and dreadful construction upon the motives of the speaker, and I awakened to the fact that although entirely innocent of any complicity I had laid myself open to a charge of having been concerned in the murder of my cousin.
 
    "My ill-advised attempt to conceal the garments which I had used as a disguise, and of which I had not known how to dispose, was dictated by panic. I knew the police were watching me and I was fool enough to think that I could escape their vigilance.
 
    "This is all I have to say. It explains nothing and it does not exonerate me, I am aware, but I swear that it is the truth,"
 
    "(Signed) ERIC COVERLY, Bart."
 
    Although she retained so brave a composure I recognized the strain which this new and cruel ordeal had imposed upon Isobel; and Gatton incurred a further debt of gratitude by his tactful behavior, for:
 
    "Miss Merlin," he said earnestly—"you are a very brave woman. Thank you. I only wish I could have spared you this."
 
Shaking me warmly by the hand, he bowed and departed, leaving me alone with Isobel.
 
As the sound of his footsteps died away Isobel returned again to the seat from which she had risen; and a silence fell between us. My own feelings I cannot attempt to depict, but I will confess that I was afraid of my humanity at that moment. Never had Isobel seemed more desirable; never had I longed as I longed now to take her in my arms.
 
The tension of that silence becoming insupportable:
 
"You will not stay here alone?" I asked in an unnatural voice.
 
Isobel, without looking up, shook her head.
 
"I am going to Mrs. Wentworth—my Aunt Alison," she replied.
 
"Good," I said. "I am glad to know that you will be in her cheery company."
 
Mrs. Wentworth was, indeed, a charming old lady, and so far as I knew, Isobel's only relation in London, if not in England. She occupied a house which, like herself, was small, scrupulously neat and old-worldly. One of those tiny residences which, once counted as being "in the country," had later become enmeshed in the ever-spreading tentacles of greater London.
 
It was situated on the northern outskirts of the county-city, and although rows of modern "villas" had grown up around it, within the walls of that quaint little homestead one found oneself far enough removed from suburbia.
 
"When are you going, Isobel?" I asked.
 
&qu............