"Survival Factor" is a science fiction novel by the famous writer Charles W. de Wet. The book tells the story of a group of astronauts who land on a mysterious planet, where every day becomes a test for their survival. The main element of the story is not only the struggle for life, but also the internal conflicts and moral dilemmas of the heroes. "Survival Factor" is an exciting journey into the world of science and adventure, which will remain in the reader's memory long after the last page is finished.