what is the fall of the house of usher about

"The Fall of the House of Usher" is a short story by Edgar Allan Poe, first published in 1839. The story begins with an unnamed narrator arriving at the House of Usher, a creepy mansion owned by his boyhood friend Roderick Usher, who has been sick lately and asked for help. The house is gloomy and mysterious, and the narrator observes that it seems to have absorbed an evil and diseased atmosphere from the decaying trees and murky ponds around it. The story is carefully crafted to elicit feelings of dread, stress, and fear. The setting, diction, and imagery combine to create an overall atmosphere of gloom, death, and decay. The story possesses the quintessential features of the Gothic tale: a haunted house, dreary landscape, mysterious sickness, and doubled personality. The story ends with the entire house cracking along the break in the frame and crumbling to the ground.