The memoirs of the outstanding Soviet military intelligence officer - resident in Belgium and France on the eve and during the Second World War, Kent (A.M. Gurevich) cover the period of almost the entire 20th century. The author describes in detail the events in Leningrad, in the USSR in the 1920–1930s, the war in Spain, in which he took part in the rank of lieutenant in the Republican Army, his intelligence activities in Belgium and France, as well as the subsequent period of his life, including including more than twelve years of stay in Soviet camps. The book is of interest to a wide range of readers, as well as historians, psychologists, philologists and other specialists.