Answer: The adverb slowly describes the verb walked. It basically says HOW the person walks (like did they walk fast, slow, at an average pace, etc., and in this case, it says that they walked in a slow manner).
Edit: so I’m assuming effect is like the mood of the story created, and I’d say that it creates a somber, suspenseful feeling, opposed to if she was walking quickly, which would create a rushed mood.
The symbolic significance of The raven in the poem is vast.The ebony bird stands as the embodiment of grief caused by loneliness and separation.He stands as a symbol of the loss of the narrator whose heart yearns for his beloved Lenore.The raven represents evil and death. hope this is helpful :)
