A pensioner ends up in the body of a young Neanderthal. All the main character wants is to live this second life given to him by providence in the Stone Age calmly and without changing anything globally in the world around him. After all, he became an invader after living for seventy years and, purely psychologically, he has no desire to run around with his tongue hanging over his shoulder, even after receiving a young body. But as they say, we only dream of peace. Fate clearly has its own plans for him... From the author: For the impatient, the main movement will begin in the second third of the book.