Konstantin Penzev is a well-known researcher of history and the author of sensational historical hypotheses in the spirit of Lev Gumilyov. His new book, Princes Ros: Aryan Blood, traces the ethnogenesis of the Great Russian people and makes a well-founded conclusion that the Great Russians are a special Aryan people, a separate branch of Slavism, whose youth passed in the vastness of Eurasia - from the Great Wall of China to the forests between the Oka and Volga rivers.