THE BADLINGS books
I have stumbled today on fantastic art by Vladimir Kush. Take a look. This is almost exactly how the books in THE BADLINGS look like. The story is, four bad children (they don't finish reading books) stumble on Mad Tome, a book composed of unread pages, and it sucks them in as punishment. Now they will have to finish reading those pages, whether they want it or not, and travel into twenty other books.