Excellent Game
I loved this game. Excellent. Very well made. Rated it top notch even though the bug prevented me from finishing it. Not sure how its happening. All I can tell you is that I did the first floor first. Then I proceeded to second floor, then back to first... read books, went back to second floor, saw the ghost, then back to first and up to second.
I kept going back and forth until I found the attic. Then I read the second floor book. Went through, looked up walkthroughs and found all symbols (some were quite hard to find).
Despite having read all books, found all symbols, AND clicked ghost (and I clicked all four of those symbols countless times), I could not access the cellar door. Got to be a bug somewhere.