Answer:
Ghastly pallor of the skin
Explanation:
The narrator states that when he saw Usher, he was startled by his appearance, because in addition to having his hair disheveled and his face down, he presented "Ghastly pallor of the skin" which was one of the main reasons that made the narrator so uncomfortable with what I was seeing. We can see, then, that Usher was not in good health, both mentally and physically.
"Fall of the House of Usher" is a short story written by Edgar Alan Poe and tells how Usher's house was languishing just like him, presenting a terrifying, hideous, evil and uncomfortable atmosphere and appearance.