Edgar Allen Poe's "" main characters parallel the house that they inhabit. The two siblings, Roderick and Madeline Usher, that occupy the Usher house have both become very elusive, and mentally ill because of the house. The erosion of both the physical house of Usher and the people of the house Usher are comparative to each other. As the physical house of Usher crumbles, so do the family members in turn. As each brick in the house erodes, so do the minds of the Usher family. As Roderick Usher crumbles there is a sense of approaching doom ....