and began to muse over their contents.

Fearing, however, that the train of thought into which I fell might unsteady my nerves, I fully determined to keep my mind in a fit state to cope with whatever of marvellous the advancing night might bring forth. I roused myself; laid the letters on the table; stirred up the fire, which was still bright and cheering; and opened my volume of Macaulay. I read quietly enough till about half-past eleven. I then threw myself dressed upon the bed, and told my servant he might retire to his own room, but must keep himself awake. I bade him leave open the door between the two rooms. Thus alone, I kept two candles burning on the table by my bed-head. I placed my watch beside the weapons, and calmly resumed my Macaulay. Opposite to me the fire burned clear; and on the hearthrug, seemingly asleep, lay the dog. In about twenty minutes I felt an exceedingly cold air pass by my cheek, like a sudden draught. I fancied the door to my right, communicating with the landing-place, must have got open; but no,—it was closed. I then turned my glance to my left, and saw the flame of the candles violently swayed as by a wind. At the same moment the watch beside the revolver softly slid from the table,—softly, softly; no visible hand,—it was gone. I sprang up, seizing the revolver with the one hand, the dagger with the other; I was not willing that my weapons should share the fate of the watch. Thus armed, I looked round the floor,—no sign of the watch. Three slow, loud, distinct knocks were now heard at the bed-head; my servant called out, "Is that you, sir?"

"No; be on your guard."

The dog now roused himself and sat on his haunches, his ears moving quickly backwards and forwards. He kept his eyes fixed on me with a look so strange that he concentred all my attention on himself. Slowly he rose up, all his hair bristling, and stood perfectly rigid, and with the same wild stare. I had no time, however, to examine the dog. Presently my servant emerged from his room; and if ever I saw horror in the human face, it was then. I should not have recognized him had we met in the street, so altered was every lineament. He passed by me quickly, saying, in a whisper that seemed scarcely to come from his lips, "Run, run! it is after me!" He gained the door to the landing, pulled it open, and rushed forth. I followed him into the landing involuntarily, calling him to stop; but, without heeding me, he bounded down the stairs, clinging to the balusters, and taking several steps at a time. I heard, where I stood, the street-door open,—heard it again clap to. I was left alone in the haunted house.

It was but for a moment that I remained undecided whether or not to follow my servant; pride and curiosity alike forbade so dastardly a flight. I re-entered my room, closing the door after me, and proceeded cautiously into the interior chamber. I encountered nothing to justify my servant's terror. I again carefully examined the walls, to see if there were any concealed door. I could find no trace of one,—not even a seam in the dull-brown paper with which the room was hung. How, then, had the THING, whatever it was, which had so scared him, obtained ingress except through my own chamber?

I returned to my room, shut and locked the door that opened upon the interior one, and stood on the hearth, expectant and prepared. I now perceived that the dog had slunk into an angle of the wall, and was pressing himself close against it, as if literally striving to force his way into it. I approached the animal and spoke to it; the poor brute was evidently beside itself with terror. It showed all its teeth, the slaver dropping from its jaws, and would certainly have bitten me if I had touched it. It did not seem to recognize me. Whoever has seen at the Zoological Gardens a rabbit, fascinated by a serpent, cowering in a corner, may form some idea of the anguish which the dog exhibited. Finding all efforts to soothe the animal in vain, and fearing that his bite might be as venomous in that state as in the madness of hydrophobia, I left him alone, placed my weapons on the table beside the fire, seated myself, and recommenced my Macaulay.

Perhaps, in order not to appear seeking credit for a courage, or rather a coolness, which the reader may conceive I exaggerate, I may be pardoned if I pause to indulge in one or two egotistical remarks.

As I hold presence of mind, or what is called courage, to be precisely proportioned to familiarity with the circumstances that lead to it, so I should say that I had been long sufficiently familiar with all experiments that appertain to the marvellous. I had witnessed many very extraordinary phenomena in various parts of the world,—phenomena that would be either totally disbelieved if I stated them, or ascribed to supernatural agencies. Now, my theory is that the supernatural is the impossible, and that what is called supernatural is only a something in the laws of Nature of which we have been hitherto ignorant. Therefore, if a ghost rise before me, I have not the right to say, "So, then, the supernatural is possible;" but rather, "So, then, the apparition of a ghost, is, contrary to received opinion, within the laws of Nature,—that is, not supernatural."

Now, in all that I had hitherto witnessed, and indeed in all the wonders which the amateurs of mystery in our age record as facts, a material living agency is always required. On the Continent you will find still magicians who assert that they can raise spirits. Assume for the moment that they assert truly, still the living material form of the magician is present; and he is the material agency by which, from some constitutional peculiarities, certain strange phenomena are represented to your natural senses.

Accept, again, as truthful, the tales of spirit-manifestation in America,—musical or other sounds; writings on paper, produced by no discernible hand; articles of furniture moved without apparent human agency; or the actual sight and touch of hands, to which no bodies seem to belong,—still there must be found the MEDIUM, or living being, with constitutional peculiarities capable of obtaining these signs. In fine, in all such marvels, supposing even that there is no imposture, there must be a human being like ourselves by whom, or through whom, the effects presented to human beings are produced. It is so with the now familiar phenomena of mesmerism or electro-biology; the mind of the person operated on is affected through a material living agent. Nor, supposing it true that a mesmerized patient can respond to the will or passes of a mesmerizer a hundred miles distant, is the response less occasioned by a material being; it may be through a material fluid—call it Electric, call it Odic, call it what you will—which has the power of traversing space and passing obstacles, that the material effect is communicated from one to the other. Hence, all that I had hitherto witnessed, or expected to witness, in this strange house, I believed to be occasioned through some agency or medium as mortal as myself; and this idea necessarily prevented the awe with which those who regard as supernatural things that are not within the ordinary operations of Nature, might have been impressed by the adventures of that memorable night.

As, then, it was my conjecture that all that was presented, or would be presented to my senses, must originate in some human being gifted by constitution with the power so to present them, and having some motive so to do, I felt an interest in my theory which, in its way, was rather philosophical than superstitious. And I can sincerely say that I was in as tranquil a temper for observation as any practical experimentalist could be in awaiting the effects of some rare, though perhaps perilous, chemical combination. Of course, the more I kept my mind detached from fancy, the more the temper fitted for observation would be obtained; and I