Yuri Klarov’s dilogy «Search» («The Black Triangle» and «Destination Station — Kharkov») is devoted to the search for national treasures stolen from the patriarchal sacristy, and valuables that made up the treasury of the monarchist organization «Diamond Fund». The investigation, interesting in itself, does not exhaust the content of the novels. The author acquaints readers with little-known pages of the history of the first years of Soviet power, painting a vivid picture of that unique time with all its contradictions, rapid смена событий, and active pace of life.