Read the excerpt from "the fall of the house of usher."
as if in the superhuman energy of his utterance there had been found the potency of a spell—the huge antique panels to which the speaker pointed, threw slowly back, upon the instant, their ponderous and ebony jaws. it was the work of the rushing gust—but then without those doors there did stand the lofty and enshrouded figure of the lady madeline of usher.
how does poe develop a short story element in the excerpt?