Conversations with Dylan

Zoey tucks her head inside a book all day, every day. When she borrows her favorite book, Moby Dick, at the public library, she gasps upon seeing writings on it. She knows those aren't there the last time she has it. So what she did is write back to the person but not on the book. She writes on a piece of paper, inserts it on the page where the writing is and returns it.

Only, she doesn't expect there's more to it than just finding out who the person is.