"HONORED SIR,--I humbly entreat your pardon, though I can scarcely hope that you will think that I deserve it, unless--which Heaven forbid!--you saw what I did. I feel that it will be years before I can recover myself; and as to being fit for service, it is out of the question. I am therefore going to my brother-in-law at Melbourne. The ship sails to-morrow. Perhaps the long voyage may set me up. I do nothing now but start and tremble, and fancy it is behind me. I humbly beg you, honored sir, to order my clothes, and whatever wages are due to me, to be sent to my mother's, at Walworth,--John knows her address." The letter ended with additional apologies, somewhat incoherent, and explanatory details as to effects that had been under the writer's charge. This flight may perhaps warrant a suspicion that the man wished to go to Australia, and had been somehow or other fraudulently mixed up with the events of the night. I say nothing in refutation of that conjecture; rather, I suggest it as one that would seem to many persons the most probable solution of improbable occurrences. My belief in my own theory remained unshaken. I returned in the evening to the house, to bring away in a hack cab the things I had left there, with my poor dog's body. In this task I was not disturbed, nor did any incident worth note befall me, except that still, on ascending and descending the stairs, I heard the same footfall in advance. On leaving the house, I went to Mr. J----'s. He was at home. I returned him the keys, told him that my curiosity was sufficiently gratified, and was about to relate quickly what had passed, when he stopped me, and said, though with much politeness, that he had no longer any interest in a mystery which none had ever solved. I determined at least to tell him of the two letters I had read, as well as of the extraordinary manner in which they had disappeared; and I then inquired if he thought they had been addressed to the woman who had died in the house, and if there were anything in her early history which could possibly confirm the dark suspicions to which the letters gave rise. Mr. J---- seemed startled, and, after musing a few moments, answered, "I am but little acquainted with the woman's earlier history, except as I before told you, that her family were known to mine. But you revive some vague reminiscences to her prejudice. I will make inquiries, and inform you of their result. Still, even if we could admit the popular superstition that a person who had been either the perpetrator or the victim of dark crimes in life could revisit, as a restless spirit, the scene in which those crimes had been committed, I should observe that the house was infested by strange sights and sounds before the old woman died--you smile--what would you say?" "I would say this, that I am convinced, if we could get to the bottom of these mysteries, we should find a living human agency."