Fahrenheit 451

In Farenheit 451, the mechanical hound is a dog-shaped robot with eight legs. It is made of metal. It's purpose is to hunt down and kill fugitives, who have violated the law of the society.. The real purpose of the hound in this story is to show "how faceless and mechanical the system is" in our society and how free thinkers suffer in this society from bookish acts and rules.