This book describes some of the operations of the Cheka against foreign agents, conspirators, terrorists, active anti-Soviet figures, speculators and corrupt officials in the first decade of Soviet power. In many ways, it was thanks to the work of the security officers that Soviet Russia was able to withstand that secret war, unprecedented in scale, waged against the Soviet state by its far from mediocre opponents - the spy with a diplomatic passport R. Lockhart, the “superman” S. Reilly, the “king of terror” B .Savinkov and many others.