Through all the works included in the collection passes the idea of ​ ​ the impact of scientific discoveries on the life and fate of mankind. Reading the story "Clay God," we, together with the chemist Frenchman Murdal and his friend Fer-nan, find ourselves in a mysterious laboratory deep in the African desert. We seem to be involved in the fight against the criminal plans of the Bonn protege Dr. Graber, who is engaged in complex experiments to replace carbon in the human body with silicon and thus turn people into soldiers who are insensitive to atomic radiation. The story "Formula of Immortality" and other stories were also included.