Scope and Content Manuscripts of books by James J. Zatko, including Descent into darkness : the destruction of the Roman Catholic Church in Russia, 1917-1923 , (Toronto : Baxter Publishing, 1965), his history of treatment of the Catholic Church under communism in Russia (based on his 1958 Notre Dame Ph.D. thesis); Valley of Silence: Catholic Thought in Contemporary Poland (Univ. of Notre Dame Press, 1967), which he compiled and edited; ...