"The Copper-Clad World" is a science fiction short story written by Harl Vincent. This story provides a fresh and intriguing study of a different universe. The novel recounts the exploits of two scientists, Haines and Dr. Percival, as they journey deep underground to discover the secrets of their copper-clad world in a future where Earth is not comprised of rock and soil but is totally covered in a coating of copper. The scientists find a rich ecosystem...