<span>Yes, there is a real raven and it really can talk. At least it can say one word. It may have gotten lost in the storm somehow and was seeking shelter in a human house, indicating that it was probably a pet. The poem calls for "a willing suspension of disbelief."</span>
Answer:
Alliteration
Explanation:
Alliteration is the repetition of the same sound at the start of a series of words in a sequence. In this phrase, "sad sulking snake stayed surreptitiously", all the words start with the same letter. Therefore it is alliteration.