Predicate noun I believe is the correct answer.
The answer to your question is a hyperbole i believe
Repetition usually tells us that the someone wants a large emphasis on this word: that it has a significant meaning to them, and/or possibly the whole tale itself.
Answer:
Basically, just describe what kind of emotions you think Poe was using for that main POV and if it were to be from the old man with a different color eye's POV how do you think he would have acted. you could also describe how you might think the old man was treated. Then you could Like try to describe what may have gone through his mind when a crazy man was trying to kill him.
Explanation:
It's been a while since I've read the story but I tried to answer the best I could with my memory, but anyways I just hope this helps a bit <3
