Subterraneans are beings who operate below the surface of the Earth in underground dwellings. The underground world is described as being inhabited by innumerable races throughout the porousness of the interior earth. Its vastness of cavities and irregularities serve to create free currents of air and frequent winds, and for the various modes in which heat is evaporated and thrown off.
- ↑ Underground dwellings are not exclusive to just Earth. There are reports of colonies and bases under the Moon, Mars, and other planetary surfaces.
- ↑ The Coming Race (1871), by Edward Bulwer-Lytton
- Edward Bulwer Lytton, on Wikipedia