So I got the best ending. This post after this will be spoiler-tagged (If it works) as it includes my own interpretation on the story.
-SPOILERS BELOW, HERE YE BE WARNED-
**Okay, so obviously Coco is dead. In fact, everyone in the mansion is either dead or there because of Coco, save for Lyell. He's the only living person in the game. Coco's a ghost, looking for her lost notebook, that Lyell found years ago when he was a kid, and was never able to return it to her. She probably was dead long before that, too, so she's been, in TvTropes terms, Dead All Along.
Now, my interpretation on some of the other characters.
Axe Woman: Lizzie Borden. She has an axe.
Pie-Eating Boy: I'm actually not too well-versed on fairytales, so I have no idea who he is.
The Twins: Same as above.
The Woman Drinking Tea: Little Miss Muffet.
The Plain Egg: Humpty Dumpty.
The Blind Man: Err… no clue.
The Mouse: Same mouse from Hickory Dickory Dock.
I… likely forgot more than a few characters, feel free to remind me.
I went off the rails, anyways. So I'm going to get back on track.Post too long. Click here to view the full text.