Another fine release by Stefan, the interesting Scottish folklore combined with spooky atmosphere, makes a great adventure to play.  Although I am confused regarding the scoring system. I was playing this through z5 interpreter, and I found out that the maximum score you can achieve is 410 points (and not 415 as the game suggests), unless I miss something.

I am glad you enjoyed Ghosts! Thank you very much for playing it and for the kind words. The maximum score indeed is 415. When I look into the source code and count the score increments, it is 415 points. And I saw people reach it, so you must have missed something I believe but I am not able to tell you what it is, unfortunately. It can be many things but in most cases it is a conversation missed or a hint you haven’t found and later resolving the riddle without the hint. Kind regards 

Hi Stefan, thanks for the prompt reply. I guess it's not an item, so the missing 5 points must be probably a hint I missed and solved the puzzle without it.

Yes, I agree that an item is rather unlikely. Because essentially, you need to get all the items that will give you a score in-game do something with them. As soon as you get an item the first time, your score is updated. I bet it was a hint.

Update for those wondering. It's an item which can easily be missed :)

Yes, I second to that, final score is indeed 415.