Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Absolutely fantastic storyline. Well written, lots of action, great character development and just spell binding. Basically it is a story of survival with so much more. I have now read all four in the series and just loved how the story develops in most unexpected ways. I found the main characters to be real and was with them the whole way. A must read