The fall house of usher

The house crumbles to the earth at the end of the story. Usher's zombie sister awakens and everything collapses. The crumbling of the house is certainly foreshadowed at the beginning of the story,

"the crumbling condition of the individual stones. In this there was much that reminded me of the specious totality of old wood-work which has rotted for long years in some neglected vault, with no disturbance from the breath of the external air. Beyond this indication of extensive decay....."