There is no such work in world historiography. The theme of the book remained banned in the USSR for a long time. What was the relationship between two important figures in the political arena? Did N.K. Krupskaya resist the assertion of an authoritarian Stalinist regime? What did the "master of the Kremlin" do to limit the actions of Lenin's widow? Authors are trying to answer these and other questions, inviting readers to reflect on the past...