The book is devoted to the little-known and practically unstudied problem of the relationship between the Soviet state and the churches of Baptists, Evangelical Christians, Mennonites, Seventh-day Adventists and Molokans in the 1920-1930s. The collection is based on unique declassified archival documents of party and Soviet bodies, the Cheka – GPU – OGPU – NKVD, revolutionary military tribunals and courts, as well as materials from the party and Soviet periodicals of Siberia.