Can anyone please help with a dilemma that i have with a paperback and if anyone has had the same thing before. it's certainly a first for me. What it is that on a couple of pages the book has got what can only be described as light brown streaks,as if some liquid has been splashed onto the page,now at first i thought that it was that, but the marks are only on one of the pages and go round into the spine not touching the adjacent page, which is a bit baffling so i just wondered if anyone has had similar and could explain what they were?