Edgar Allan Poe's "The Fall of the House of Usher" (1839) stands as a masterpiece of American Gothic literature, exemplifying Poe's genius for psychological terror and atmospheric dread. The story follows an unnamed narrator's visit to his childhood friend Roderick Usher, whose family mansion and its inhabitants have fallen into a state of physical and mental decay. As the narrator witnesses Usher's fragile mental state, his mysterious sister's illness, and increasingly inexplicable supernatural occurrences, the boundary between psychological delusion and genuine horror becomes disturbingly unclear.