A typical example is the fairy tale "O królewiczu Ferrycym i królewnie Krystalii" ("Prince Ferrix and the Princess Crystal"). A princely (robotic) knight falls in love with a beautiful (robotic) princess. Unfortunately, the princess is somewhat eccentric, and is captivated by stories of an alien non-robotic, "paleface" civilization (the humans). She declares that she will only marry a "paleface". Therefore, the knight decides to masquerade as a paleface. He covers himself with mud, starting to resemble one, and then comes to woo her.