Zagorchinov was also an author of plays, essays, portrait pieces, articles and memoirs.
During the years 1920–1925 Zagorchinov taught French at the Naval Force School in Varna.
During World War I (1915–18) he served in Kyustendil as an officer-translator at the Army Headquarters.
He is the author of the historical legend "The Legend of Hagia Sophia" (1926), the "Last Day, God's Day" ("Otrotsi", "Inatsi", "Yunatsi") (1931–34) the novel "Boyan's Feast" (1950) and "Ivaylo" (1962), which continues the tradition of the Bulgarian historical novel, started by Ivan Vazov.
In addition to these works, he also wrote a few drama plays: In 1956, he published the collection of critical Articles and "Fiddles", and in 1966 the memoir "Shadow".