Hello! I played through this a few days ago, highly enjoyable for a spooky horror feel theme. I think your plot outline was good and each scene does build the plot tension up creating an exciting feeling to keep going and see what happens next in the main plot. I thought the presentation for your story was very good, I liked the buggy and creepy feel you gave the game dialogue and interaction.
Very nice use of events for scrolling through some maps at the end, and also what I'm guessing was duplicating and adding to other similar maps earlier on. That helped boost the experience as it was fun to see that as well.
I like almost the whole thing, but would've enjoyed a proper strategic boss fight at the end and perhaps a few more battles for an RPG, though, and I also thought maybe having some more objects to interact with, and a little more exploring outside of the main story could've been interesting. And some slightly optional content or reward for exploring somewhere.
If there was more combat, then haining items and stuff for combat would've been a good apporach to it. Maybe items that help could be gained through additional interactive objects and then a couple of strategic skills for Harold?
These are just suggestions for improvement as I still liked & enjoyed your game as it was. It was fun! : )