Plot peculiarities of our horror story to make                                                  everything clear)

The plot of The Fall of the House of Usher is not very complicated, though very  interesting. It creates perfect background for E.A. Poe’s masterly art of depicting an atmosphere of  darkness and horror.

From the point of view of presentation the text is the 1st person narrative. The story is presented from the point of view of an unnamed narrator, who is acquianted to the owner of the house—Roderick Usher, whom he knows since boyhood. The narrator receives a letter from him with a very urgent request to come to his house and keep him a company in his terrible disease. "A letter, however, had lately reached me in a distant part of the country--a letter from him-- which, in its wildly importunate nature, had admitted of no other than a personal reply."

In the first paragraphs Poe gives the introduction and the exposition to his horror story (we know where and when the action was taking place). The development of the events is reveled through the descriptions, narrations and with cases of dialogues between Roderick and the narrator. I think, the author did the intentional choice of types of speeches to create the gloomy and mysterious image of the whole story. So, the inner narrator's meditations help to observe the hesitations of him, fear and superstitions. The narrator felt something bad was going to happen, but there were no proofs. To some extent.

The climax comes when Roderick and the narrator realize that they've buried lady Madeline  alive and when she comes out of her tomb, enters the room and  falls onto Roderick.We understand, it was awaited by Roderick. He knew, they've burried his sister alive. But he was too weak to admit it and to save the soul and body of lady Madeline. That is the moment the readers understand how his mental illness made the Master of the House of Usher do the most terrible deed in his life.

The anticlimax of the story comes when the narrator escapes the House, and looking back, he saw the house falling into the lake and it's waters engrossed the walls and fragments of the house. I think, it is exactly anticlimax, as we don't know what happened there inside and we do not have answers to our questions. The end of the story is not very clear.