Njegova knjiga, rad historijske fikcije, opisuje susret i "miješanje" u 8. stoljeću tri temeljna elementa bugarske nacije -- drevnih Bugara, Slavena i Tračana -- kao i susret tri posebna pića -- kumisa, piva i vina.
His book, a work of historical fiction, describes the 8th century meeting and "mixing" of the three founding elements of the Bulgarian nation -- the ancient Bulgarians, Slavs and Thracians -- as well as the meeting of three respective drinks -- kumis, beer and wine.