Answer:
Deep into that darkness peering, long stood there wondering, fearing, Doubting, dreaming
Step-by-step explanation:
Alliteration is a figure of speech related to phonetic / phonological aspects of the word, which consists of repeating identical or similar consonant sounds in words of a sentence or verses of a poetry to create sound. This happens in this excerpt written by Poe, where alliteration was used in the repetition of the phoneme "ing."