Assessments of the personality and activities of Felix Dzerzhinsky still cause a lot of controversy: from “knight of the revolution”, “soldier of great battles”, “fighter for the people’s cause” to “apostle of terror”, “bloodthirsty lion of the revolution”, “executioner and strangler freedom.” He was one of the brightest representatives of the galaxy of fiery revolutionaries, the “Leninist guard” - tough, principled, uncompromising and merciless to the enemies of the socialist revolution. How did it happen that Dzerzhinsky, who held key positions in the government of Soviet Russia, did not even have a certificate about education? How did Iron Felix treat women? Why did a zealot of revolutionary legality in the days of the “Red Terror” single-handedly decide the fate of many people without trial, without feeling any pity or leniency towards political opponents? What is the true reason for the sudden death of Felix Dzerzhinsky ?The reader will find answers to these and many other questions in the book.