A fairy tale based on a borrowed plot of a Russian fairy tale. One ruler had three sons, the eldest brothers married merchant daughters, the youngest got a princess in the form of a frog. Everything would have been fine, but the brothers burned the frog skin, the young man had to look for his wife. He found her in the form of a white swan. The young man brought her home, but his father and brothers did not like that the youngest had such a beautiful wife. Wherever they sent their younger brother, in the hope of his imminent death, but he always came back after the trials. As a result, they left the young couple alone and they lived happily.