V. Kryukov (translator): Memoirs of an officer who, during the First World War, as a secret agent, played a fairly active role in French military intelligence operations carried out along the eastern border of France, and later in neutral Switzerland. The author, a wealthy Alsatian landowner, French by birth, with excellent knowledge of the German language and the Vosges and Jura regions, was able to successfully conduct numerous reconnaissance missions under exceptional conditions. For his military services, Lucien Lacaze received the rank of captain and became a Knight of the Legion of Honor. The book was already published in Russian in 1937 under the title “Four Years of Intelligence Work 1914–1918”, but in a different, greatly abbreviated translation (108 pages out of 280 original).