The correct answer to this very question today is
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Epistolary-which is the literary work in the form of letters.
I think the answer you are searching for is:
"On the fast track to madness due to the loss of his lover Lenore, the speaker in Edgar Allan Poe's poem "The Raven" would like nothing more than for the raven to give him good news about her return. When he asks the bird if he and Lenore will be reunited in Heaven, it accordingly responds "Nevermore!"
Hope this helps!!