First Attempt at Book Crafting: What Have I Gotten Myself into?

So I was inspired by several pictures I found online of book crafts and decided to spare this discard from the trash heap.

I have no idea what I am going to do with it, but this is my second day trying to hollow it out.  Maybe I should have started with a thinner book.  It is incredibly messy and time consuming.  If only I could use my Dremel, the heat from the friction only creates singed edges and the smell of burning.

I have quite low expectation for this project seeing as it's my first ever, but there is an endless supply of mediums to work with, yay for weeding/discarding!