I don't own Greek myths. That being said, there will be many modified facts.

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Introduction

Lord Hades and the order of His Realm

The Lord Hades is one of the three most powerful Greek Gods. He is the ruler of the Underworld, where all souls go after their lives end, the punisher of broken oaths. He is the God of the Dead, of the Underworld, Death, Darkness, The Earth, Riches, Mortality, Afterlife and Metals. He is capable of reviving dead people and animals, making a person immortal. His title as Rich One isn't completely because of Underworld being underground. Partly it is because he can grow metals and riches from nowhere. It also partly is because whenever a Younger Generation's God wants an entrance, he or she must pay with either gems or money.

In the dark Underworld, below the starlit night sky stands The Palace, one of the main buildings of the Underworld. There always are many dead souls, who upon their death, write down the more historically important events, new science theories and newly proved facts. There is a special group of spirits dedicated to ordering the library. They decide which types of books go into which sectors. The Palace is a place, where the never-ending library is located.

Long ago, He decided to create and maintain a huge library, where a trove of information would be held. After a person's death, if he knows something new and important, and nobody before had had it written, he has to write down the fact or a book, depending on the amount of new material.

Even though the Underworld was regarded as a dead and eternal realm, there were plenty of alive creatures and people. Most of those people were humans, who earned the privilege of living again. After Lord Hades gifts them life, they are bound to serve him for a few years before being released onto the Earth with the God's blessing. Those humans often became known as very versed in studies or sciences because of having had an opportunity to read in The Palace's library.

The Lord Hades' Throne Hall is placed in a smaller building, called Judgement Hall, although The Lord prefers to work in his study in The Palace.

In this Realm the ones living there, the God, the helping spirits and less important Gods, all have various residential choices because there are plenty of comfortable buildings being built by dead humans' spirits, who were architects or builders in life.

Souls, who as alive people were great - emperors, kings, philosophers, scientists - after death reside in a semi - private Heaven of their most deep-seated dreams. Those, who were average in life, reside in a very life-like place similar to their life's circumstances and environment. Really bad people, murderers, rapists are continuously tortured by their or other criminals' victims' memories in order to get them to repent.

The dead generally reside in a deeper part of the Underworld, while revived people live closer to the surface near Underworld spirits and Gods.