This is a spine-tingling tale, @ubani1! I come away with a few questions about this haunting, and who might have perhaps died there, and why the uncle was not aware of it. (Or was he?) But you have some great descriptions and scene setting!
As I mentioned in your story the other day, you want to be careful with your contractions. In the following, "I'm" should be "I am."
"Yes, I'm. Shall we go in?"
You might want to avoid these kinds of contractions and just write out the longer version. :-)
Enjoyable story!
RE: THE ATTIC ROOM