Which two sentences contribute to the overall eerie mood of the adapted excerpt from "The Fall of the House of Usher" by Edgar A
llan Poe? In this mansion of gloom I now proposed to myself a stay of some weeks. Its proprietor, Roderick Usher, had been one of my closest friends in boyhood. But many years had passed since our last meeting.
A letter, however, had lately reached me in a distant part of the country. A letter from him, which, in its wildly insistent nature, had allowed no other than a personal reply.
The handwriting gave evidence of nervous agitation. The writer spoke of a kind of illness--of a disorder which oppressed him--and of an earnest desire to see me.
As his best and indeed his only personal friend, with a view of attempting, by the cheerfulness of my society, to provide some relief from his malady.
You didnt provide the second sentence but from my understanding the prefix "un" , which means not, could be added to friendly to mean unfriendly or not friendly.