Good action/adventure survival story with plausible raison d'etre. The female protagonist shows lots of growth throughout the novel. Light romance adds to the tension. A teeny tiny bit draggy in a couple of parts but overall entertaining and thought provoking. I was surprised and a little perplexed to discover something about Sarah, the main character at the end of the book, which I won't give away, but that seemed a bit unnecessary to me as if it was thrown in for a shock factor. I was confused and thought that I had obviously missed something early in the early chapters. The author has some interesting comments about this on her website but I find that I don't necessarily agree with her assumptions about readers. At any rate, it would make for an interesting class discussion. Also, the author very cleverly plants a character from her first book in this book who makes a brief cameo towards the end of the novel.

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