Beyond the substance of the book, which can not much blame is on the form that lingers this comment. This title is no longer published by the Library of stories but in Tel collection (still by Gallimard), it seems necessary to take into account this warning: Brochure Tel collection is more than faulty; you pay less, certainly, but you know why. Besides the fact that a page is replaced by another in the second half of the book, the pages have a strong tendency to want to escape, even if all precautions have been taken in the handling of the work.
Looking at the comments on the Internet (including right here) reveals that the phenomenon is not isolated. Bad enough by a publisher as Gallimard.