I was surprised by the ghost the first couple times, but as soon as you get used to the ghost, dodging it becomes less of a hassle. There are some intense situations you can be in with the ghost like when I was in a tight hallway and I had to make a quick veer just to narrowly dodge. There are definitely some interesting mechanics in there that could definitely be explored, like the slower walking with books held. It's an interesting tradeoff but I didn't really see it in my playthrough since picking up books 1 by 1 felt easier. I enjoyed the game overall, but I think there's something here that could definitely shine through with some refinements. Also I liked the twist at the end.