In the third act the conquering army of the Polovsty return to camp, bringing the prisoners and spoils taken from Poultivle. At this sight, Igor, filled with pity for the sorrows of his wife and people, consents to flee. While the soldiers are dividing the spoil from Poultivle, Ovlour plies them liberally with koumiss and, after a wild orgy, the whole camp falls into a drunken sleep. Borodin has been severely censured by certain critics for the robust realism with which he has treated this scene. When the Khan's daughter discovers their secret preparations for flight, she entreats Vladimir not to forsake her. He is on the point of yielding, when his father sternly recalls him to a sense of duty. But Konchakovna's glowing Oriental passion is not to be baulked. At the last moment, when Ovlour gives the signal for escape, she flings herself upon her lover, and holds him back until Igor has mounted and galloped out of the camp, unconscious that his son is left behind. Detained against his will, Vladimir finds no great difficulty in accommodating himself to circumstances. The soldiers would like to kill him in revenge for his father's escape. But the Khan philosophically remarks: "Since the old falcon has taken flight, we must chain the young falcon by giving him a mate. He must be my daughter's husband." In the fourth Act Yaroslavna sings her touching lament, as she stands on the terrace of her ruined palace and gazes over the fertile plains, now ravaged by the hostile army. Even while she bemoans the cruelty of fate, two horsemen come in sight. They prove to be Igor and the faithful Ovlour, returned in safety from their perilous ride. The joy of reunion between husband and wife may be perhaps a trifle over-emphasised. It is the man who speaks here, rather than the artist; for Borodin, who lived in perfect domestic happiness with his wife, knew, however, many long and enforced separations from her. The picture of conjugal felicity which he gives us in _Igor_ is undoubtedly reflected from his own life. The opera closes with a touch of humour. Igor and Yaroslavna enter the Kremlin at Poultivle at the same moment as the two deserters Eroshka and Skoula. The precious pair are shaking in their shoes, for if Igor catches sight of them they are lost. To get out of their difficulty they set the bells a-ringing and pretend to be the first bearers of the glad tidings of Igor's escape. Probably because they are merry ruffians and skilful with their _goudoks_, no one reveals their treachery and they get off scot-free.