This book by two journalists from the GDR is a lively, interesting story about the fate of the literary heritage of K. Marx and F. Engels. The reader will learn how, after the death of the founders of scientific communism, thanks to the efforts of many people, it was possible to track down, collect and preserve the priceless manuscripts of the great revolutionaries. The book shows how the communists consistently and selflessly opposed all attempts to hide the manuscripts of K. Marx and F. Engels from the public, to distort their content.