Gleb Vasilievich Alekseev (1892-1938) - a man of difficult, tragic fate: one of the most interesting Russian Soviet writers, the author of talented novels, short stories, short stories that were not reprinted after his death during the years of Stalinist repressions. The exciting and tense plot of the novel "Underground Moscow" is connected with the search for the library of Ivan the Terrible - the greatest cultural value of world importance, the still unresolved secret of Russian history, according to appendages hidden in the caches of underground Moscow.