Answer:
give this part of the story a dark and foreboding mood
Explanation:
I could not find the author and story that is missing in your question but I will try to help you with some facts that I think that are important for it.
Torwood pine forests and The Grapes is something that is often using in literature because it is creating mysterious and dark mood of the story. When readers read that part, they are getting curious about what will happen next in the story. Also, forests are having dark color and because of that it is often dark in them. With this location and mood, there are often clouds and cold weather.
