The realm of Hades was created along with Elysium, Asgard, and the other dimensions of this cosmos. Instead of the lighter atmosphere that those other lands hold, Hades is dark and evil. Large rifts of rock split open the earth. Numerous streams and rivers cross the world. These waters, or fires, generally coalesce into five great channels: the Styx, Acheron, Phlegethon, Cocytus, and Lethe. Each of these rivers are covered in a much more in-depth manner in other documents.
Lost souls of the dead wander aimlessly through the land. Their incorporeal forms blaze dull lights upon the earth. Through Faustian pacts, a distinct lack of will, or some other machination of the beyond numerous spirits are found here. The oldest are the most hostile. It should be noted that the term soul applies not just to the humanoid lineages. Nay, even the specters of dragons and daemons roam.