"Accordingly, a bed was prepared there; and he arranged himself for that night or as many future nights as it might be necessary; determined not to relinquish the investigation till he had unravelled the mystery. "At dawn of day, the next morning, there was a violent knocking at the outer door; an early passenger had found this young man in the street, with nothing on but his night dress, and in a state of delirium. He was taken home and Dr. W. was sent for. The result was a brain fever; but when he recovered, he said that he had gone to bed and to sleep, that he was wakened by a loud noise, and that just as he was about to rise to ascertain the cause, his door opened, and the apparition of a female dressed in white entered, and approached his bed side. He remembered no more, but being seized with horror, supposed he had got out of the window into the street, where he was found. "This was, certainly, very extraordinary and very serious; still the persuasion that it was some mystification prevailed; and Dr. W.'s offer to pass a night in the office himself, was gladly accepted. He had informed me of the young man's illness and the cause of it; and when I heard of his intention, I requested leave to bear him company. "The noise had not been interrupted by the catastrophe that had occurred, and nobody had slept in the office during the young man's confinement. The bed had been removed, but we declined having it re-placed, for we wished our intention to remain a secret; besides, we preferred watching through the night. It was not till the workmen had all retired that we took up our position, accompanied by a sharp little terrier of mine, and each armed with a pistol. We took care to go over the house, to make sure that nobody was concealed in it; and we examined every door and window to ascertain that it was secure. We had provided ourselves with refreshments also, to sustain our courage; and we entered upon our vigil with great hopes of detecting the imposition.