About the book: 2006 / He found a Paleolithic site, the first skull and skeletal remains. People were not ready for war with huge monkeys, organized in furious packs. Plows came here thousands of four years ago. By that time, the first people on the planet had already learned to chip stones and light fire. Lunin heard the voices of the forest, but they did not bother him. He knew that in case of danger he would have time to reach the tent in one leap and turn on the force field. Ancient people did not have such a field.