It seems Mr. Monte had not been a professional author, and he says he is retelling Polish versions of similar stories from his wife's family and Polish publications, but his work does on occasion achieve a beautiful sense of losing oneself as a child in the setting and world.
Many tales seem to end with repetitive moralizing about trying to climb too high or be too rich but that's probably not his doing.
It's my contention that the story of the "golden" duck has been replayed dozens of times, as the movie Brewster's Millions and the many earlier films which inspired it.