interruption or device. Certain accessory points of the design
served well to convey the idea that this excavation lay at an
exceeding depth below the surface of the earth. No outlet was
observed in any portion of its vast extent, and no torch,
or other artificial source of light was discernible; yet a flood
of intense rays rolled throughout, and bathed the whole in a
ghastly and inappropriate splendour.

I have just spoken of that morbid condition of the auditory
nerve which rendered all music intolerable to the sufferer, with
the exception of certain effects of stringed instruments. It
was, perhaps, the narrow limits to which he thus confined himself
upon the guitar, which gave birth, in great measure, to the
fantastic character of the performances. But the fervid
facility of his impromptus could not be so accounted for.
They must have been, and were, in the notes, as well as in the
words of his wild fantasias (for he not unfrequently accompanied
himself with rhymed verbal improvisations), the result of that
intense mental collectedness and concentration to which I have
previously alluded as observable only in particular moments of
the highest artificial excitement. The words of one of these
rhapsodies I have easily remembered. I was, perhaps, the more
forcibly impressed with it, as he gave it, because, in the under
or mystic current of its meaning, I fancied that I perceived, and
for the first time, a full consciousness on the part of Usher, of
the tottering of his lofty reason upon her throne. The verses,
which were entitled "The Haunted Palace," ran very nearly, if not
accurately, thus: