Auzou Book for become the hero the flint challenge

You are a Neanderthal man, the young leader of a tribe. When you encounter the "Long bodies" (Homo Sapiens), your life is turned upside down: will you stick to your clan's habits or, fascinated by the modern lifestyle of the strangers, integrate into their society? This is the beginning of incredible adventures: mammoth hunting, discovering new techniques, surviving in the mountains...