that book on the shelf

why..

I was thinking that it was soo weird the book has an other side and why was the librarian looking at me weirdly I came back to the library then I looked at the librarian and I said "WHY WHO AND WHERE" she was confused I said the book I know that you know something that i don't know she was shocked she took me me down stairs where no one was there and told me that I was in danger I was confused I said seriously what can a book do to me and why do you say this she told me something shocking......