Dmitry Balashov is known as the author of the series of novels “The Sovereigns of Moscow.” In the book “Praise of Sergius,” the writer continues the main theme of his work - the story of the creation of Muscovite Rus'. The hero of this novel is Rostovite Bartholomew Kirillovich, monastically Sergius of Radonezh. By the will of fate, he became the center of that powerful spiritual movement that brought Vladimir Rus to the Kulikovo Field and created a new state on the ruins of Kievan Rus - Muscovite Rus.