A story set in the Ice Age, a love story and a mystery. The setting is greatly detailed, as it should be, being written by Bjorn Kurten. While first printed in 1980, it has not really become outdated. Nothing in the book could be countered by fresh data and much of it is guess-work anyway. And a easy read. The introduction by Stephen Jay Gould just adds to the book, like icing on a cake.