The work highlights the entire history of the work of Soviet military intelligence in China with its successes and failures from the end of the Civil War to the beginning of the 30s of the XX century. Revealed a lot of new, hitherto unknown names of Soviet intelligence officers and analyzed the results of their work. The description of the activities of military intelligence is given against the background of complex and contradictory events in the internal political life of China - "Chinese turmoil. "The work is provided with comments and notes and is of interest to both intelligence officers and a wide range of readers. It is essentially the backstory of another fundamental work - "Your Ramsay," dedicated to the Soviet intelligence officer Richard Sorge.