"You misunderstand me," I answered; "I believe the agency to be external and real, but not supernatural."

"Indeed!" said he, in an accent of surprize. "Whom do you then suppose to be the agent?"

"I know not. All is wildering conjecture. I cannot forget Carwin. I cannot banish the suspicion that he was the setter of these snares. But how can we suppose it to be madness? Did insanity ever before assume this form?"

"Frequently. The illusion, in this case, was more dreadful in its consequences, than any that has come to my knowledge; but, I repeat that similar illusions are not rare. Did you never hear of an instance which occurred in your mother's family?"

"No. I beseech you relate it. My grandfather's death I have understood to have been extraordinary, but I know not in what respect. A brother, to whom he was much attached, died in his youth, and this, as I have heard, influenced, in some remarkable way, the fate of my grandfather; but I am unacquainted with particulars."

"On the death of that brother," resumed my friend, "my father was seized with dejection, which was found to flow from two sources. He not only grieved for the loss of a friend, but entertained the belief that his own death would be inevitably consequent on that of his brother. He waited from day to day in expectation of the stroke which he predicted was speedily to fall upon him. Gradually, however, he recovered his cheerfulness and confidence. He married, and performed his part in the world with spirit and activity. At the end of twenty-one years it happened that he spent the summer with his family at an house which he possessed on the sea coast in Cornwall. It was at no great distance from a cliff which overhung the ocean, and rose into the air to a great height. The summit was level and secure, and easily ascended on the land side. The company frequently repaired hither in clear weather, invited by its pure airs and extensive prospects. One evening in June my father, with his wife and some friends, chanced to be on this spot. Every one was happy, and my father's imagination seemed particularly alive to the grandeur of the scenery.

"Suddenly, however, his limbs trembled and his features betrayed alarm. He threw himself into the attitude of one listening. He gazed earnestly in a direction in which nothing was visible to his friends. This lasted for a minute; then turning to his companions, he told them that his brother had just delivered to him a summons, which must be instantly obeyed. He then took an hasty and solemn leave of each person, and, before their surprize would allow them to understand the scene, he rushed to the edge of the cliff, threw himself headlong, and was seen no more.

"In the course of my practice in the German army, many cases, equally remarkable, have occurred. Unquestionably the illusions were maniacal, though the vulgar thought otherwise. They are all reducible to one class, [*] and are not more difficult of explication and cure than most affections of our frame."

This opinion my uncle endeavoured, by various means, to impress upon me. I listened to his reasonings and illustrations with silent respect. My astonishment was great on finding proofs of an influence of which I had supposed there were no examples; but I was far from accounting for appearances in my uncle's manner. Ideas thronged into my mind which I was unable to disjoin or to regulate. I reflected that this madness, if madness it were, had affected Pleyel and myself as well as Wieland. Pleyel had heard a mysterious voice. I had seen and heard. A form had showed itself to me as well as to Wieland. The disclosure had been made in the same spot. The appearance was equally complete and equally prodigious in both instances. Whatever supposition I should adopt, had I not equal reason to tremble? What was my security against influences equally terrific and equally irresistable?

It would be vain to attempt to describe the state of mind which this idea produced. I wondered at the change which a moment had affected in my brother's condition. Now was I stupified with tenfold wonder in contemplating myself. Was I not likewise transformed from rational and human into a creature of nameless and fearful attributes? Was I not transported to the brink of the same abyss? Ere a new day should come, my hands might be embrued in blood, and my remaining life be consigned to a dungeon and chains.