Once again you've created an insanely huge game! And in my opinion, this game is your funniest yet. Despite the dark theme, there were quite a few things in the dialogue that made me laugh. Was a good idea to provide a walkthrough as well, as I had to refer to it a few times - nothing major, just stuff that I'd overlooked. For instance, to find out that I could exit the screen to the south to reach the lighthouse.

Wow, there's a ton of content here! I also made a Lovecraftian game, but your story and art are definitely on another level compared to mine.

Took me over an hour to play through, and I did consult the walkthrough a couple times.  The puzzles mostly felt fair, although there were some times where I knew conceptually what I wanted the characters to do, but not quite how to get them to do it UI-wise.  The story was definitely unexpected and had a good mix of comedy and compelling mystery.  Overall, a great game!  Can't give you extra points for creativity, though, since by your own admission it was based on events that actually happened... : )