What are the details of the story, or what should I refer too?
It would be imagery because the excerpt is very descriptive.
Explanation:
A haunted house A) it says swelling of the ground which could mean the constant burial of humans B) you could barely see the roof which could mean that no one's live here or Been there as of no maintenance C) the cornice must have dropped from the celling meaning again no sign of maintenance
Answer:
A sequel depicts events that came after the original book, but the prequel depicts events that came before the original, like a backstory.
Hope this helps!