Based on the mood and tone of this excerpt, what will most likely continue to develop as the fall of the house of usher unfolds? the feeling of adaptation the feeling of scrutiny the feeling of nostalgia the feeling of decay excerpt: noticing these things, i rode over a short causeway to the house. a servant in waiting took my horse, and i entered the gothic archway of the hall. a valet, of stealthy step, thence conducted me, in silence, through many dark and intricate passages in my progress to the studio of his master. much that i encountered on the way contributed, i know not how, to heighten the vague sentiments of which i have already spoken. while the objects around me—while the carvings of the ceilings, the sombre tapestries of the walls, the ebon blackness of the floors, and the phantasmagoric armorial trophies which rattled as i strode, were but matters to which, or to such as which, i had been accustomed from my infancy—while i hesitated not to acknowledge how familiar was all this—i still wondered to find how unfamiliar were the fancies which ordinary images were stirring up. on one of the staircases, i met the physician of the family. his countenance, i thought, wore a mingled expression of low cunning and perplexity. he accosted me with trepidation and passed on. the valet now threw open a door and ushered me into the presence of his master.