I am a fan of alternate history, and a book about an alternate universe filled with Neanderthals fits my criteria. The book has good science fiction, decent character development, and shows an alternate society which has an entirely different social structure. You see some good and bad in the Neanderthal society (in the two later books, he loses all balance and presents them as the ultimate ideal of what humans should be). My advice is to buy this book and ignore the two later books in the series, as they are nothing like the first at all, and become nothing more than social commentary for the author's personal viewpoints.
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