The book tells about the Neanderthal tribe: life, hunting, customs, their relationship. The life of ancient people is difficult and full of hardships, but they are happy. Their happiness is in unity. There is a clash with others. Neanderthals are at a lower stage of development, but they recognize themselves as people: they have a language, they care for the elderly and children, maintain fire, bury the dead... But the principle of Others – The strongest survives; Kill before they kill you. It is not difficult to guess whose heirs are humanity.