The fall of the house of usher

Usher sent the narrator a letter asking him to visit.

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. The MS. gave evidence of nervous agitation. The writer spoke of acute bodily illness --of a mental 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, some alleviation of his malady.