Despite his mistrust of Rangoni, the Pretender agrees not to part from him if he will only let him see Marina. Rangoni convinces the Pretender to hide as the Polish nobles emerge from the castle dancing a polonaise ("Polonaise"). Marina flirts, dancing with an older man. The Poles sing of taking the Muscovite throne, defeating the army of Boris, and capturing him. They return to the castle. The Pretender comes out of hiding, cursing Rangoni. He resolves to abandon wooing Marina and begin his march on Moscow. But then Marina appears and calls to him. He is lovesick. She, however, only wants to know when he will be Tsar, and declares she can only be seduced by a throne and a crown. The Pretender kneels at her feet. She rejects his advances, and, attempting to spur him to action, dismisses him, calling him a lackey. Having reached his limit, he tells her he will depart the next day to lead his army to Moscow and to his father's throne. Furthermore, as Tsar he will take pleasure in watching her come crawling back looking for her own lost throne, and will command everyone to laugh at her. She quickly reverses course, tells him she adores him, and they sing a duet ("O Tsarevich, I implore you"). Rangoni observes the amorous couple from afar, and, joining them in a brief trio, cynically rejoices in his victory. "Scene 1 [1869 Version only]: The Square before the Cathedral of Vasiliy the Blessed in Moscow (1605)"  A crowd mills about before the Cathedral of the Intercession (the Temple of Vasiliy the Blessed) in Red Square. Many are beggars, and policemen occasionally appear. A group of men enters, discussing the anathema the deacon had declared on Grishka (Grigoriy) Otrepyev in the mass. They identify Grishka as the Tsarevich. With growing excitement they sing of the advance of his forces to Kromï, of his intent to retake his father's throne, and of the defeat he will deal to the Godunovs. A yuródivïy enters, pursued by urchins. He sings a nonsensical song ("The moon is flying, the kitten is crying"). The urchins greet him and rap on his metal hat. The yuródivïy has a kopek, which the urchins promptly steal.