This is a very short story by the Polish science fiction writer Stanslaw Lem. Lem was a great writer that was capable of creating humorous short stories with noticeable themes. This story was collected in he Cyberiad, a collection of stories about the robot "constructors" Trurl and Klapaucius. When they're not constructing machines for various marvelous purposes, they travel to other worlds in their universe, all inhabited by robots,many of which have medieval-like societies with kings, knights, and princesses, and which sometimes need rescuing from tyrants. Some of the stories parody traditional fairy tales and knightly romances, while some parody other aspects of traditional and contemporary science and culture. Lem is a treat to read and easy to narrate out loud, although the rhythm of his sentences can get a little challenging. I hope you enjoy this.