Yemelyan Yaroslavsky, whom Frayerman met in Novosibirsk, invited him to the newly formed Sibirskiye Ogni (Lights of Siberia) magazine, where his first short novel Ognyovka was published in 1924, followed by Na Mysu (At the Cape, 1925), Sobolya (Sables, 1926) and a large poem Na Rassvete (At the Dawn, 1926).
On September 15, 1921, Yaroslavsky was the prosecutor at the trial in Novonikolaevsk, now Novosibirsk, of the counter-revolutionary Lieutenant General Roman von Ungern-Sternberg.