During the whole of a dull, dark, and soundless day in the autumn of the year, when the clouds hung oppressively low in the heavens, I had been passing alone, on horseback, through a singularly dreary tract of country; and at length found myself, as the shades of the evening drew on, within view of the melancholy House of Usher. I know not how it was – but, with the first glimpse of the building, a sense of insufferable
gloom pervaded my spirit. I say insufferable; for the feeling was unrelieved by any of that half-pleasurable, because of poetic, sentiment with which the mind usually receives even the sternest natural images of the desolate or terrible.

POE, E. A. The fall of the house of Usher. In: COCHRANE, J. (Ed.). The penguin book of American short stories. London: Penguin books, 1987. p. 56.

Vocabulário:
dreary tract: terreno árido
glimpse: visão
insufferable: intolerável
gloom: melancolia
unrelieved: não-atenuado
sternest: mais sombrias

O sentimento predominante no trecho narrado é de