Hopefully this isn't too big of a spoiler, but I don't think so as this detail is clear from very early in the book. Once you start reading (assuming you know nothing about the plot), reading it while sitting on a sand dune was more apropos than you might realize. :-)
A warning that you may or may not care about. The book has more adult language and circumstances than the Wool books. Not a huge amount, but still more than Wool.
Family safe description in the spoiler tags, though still hidden due to the content.