The Black Shore
The Black shore is one of the two borders between Postea and the obscene depths. This shore is the first place that the people of Orizon arrive upon when they die. It is a vast shoreline of black diamonds and a sky with no stars. Suffusing this beach is a faint glow with numerous different colors making it up. Above, though there are no stars, can be seen the faint glow of the energy of the souls of the dead passing on.
Souls of the dead may remain on the shores for as long as there is someone who knew them that still lives. Upon waking on the sand many souls find themselves with friends and loved ones, or sometimes even their enemies surrounding them on the shore. Planar travelers or astral wanderers sometimes search for the recently departed on these shores.
The sea at the edge of this shore begins as a place of peaceful waves but soon becomes a churning, roiling, terror. Souls that are too weary of existence step into these waters and are soon washed away, their identities destroyed and the energies of their lives and souls returned to the world.
After their time on the shore is concluded, there are many things that await the dead. At any time they may leave the shores and go to the fields of Bern. There is also the danger for the souls of the evil, that the diamond sands might crack, and they will be dragged down in a cage to the obscene depths.
The souls of the honored dead will be approached when their time on the sands is done, or when they begin to leave, by the servants of a god. This servant will take them forward to the celestial gardens where they can relax or serve the gods.
A final choice for the souls of the dead is to make their way to the battlefield, to join in the endless war.
Optional Rule: Cessation
For every minute spent within the oceans at the edge of Postea, all creatures must make a DC 20 Wisdom or Constitution saving throw. On a failed save, that creature is destroyed, disintegrated, wiped out from existence. Any creature destroyed this way cannot be revived by any means.
The Battlefield
The battlefield is the second border between Postea and the Obscene Depths, it is also considered the outskirts of Orizon’s entire planar geography, the final border between the world of Orizon and the blind eternities. The battlefield is both a place of war and a place of celebration.
Upon their arrival to the black shores, a soul may volunteer for the battlefield, following their way out to a place of war and fighting. There are many things that seek to invade Orizon, and many that seek to battle the gods, the battlefield is the place where they go to war. Soldiers, souls empowered enough that they still possess the power they did in life, stand up against the aberrations from worlds away, the evils of the pit, and the servants of gods from distant planes that seek to extend their influence.
The primary war of the battlefield takes place between the opposed forces of the celestials and the fiends. The fiends believe that unseating the celestials will allow them to release the locks that bind Incancatus, and then they will be able to free their God and take the place of the celestials they attacked. The celestials mount their armies in defense, holding it fast.
Sometimes though, the two armies join together, massing against an outside threat, like an approaching Esuriiten or a god from worlds beyond that may attempt to usurp the power and position in the world of the gods and devils. These approaches are the only thing that has ever managed to get these armies to cooperate, though never to coordinate.
The Halls
At the outskirts of the battlefield, bordering the gardens, are tremendous halls where the fighting souls rest from the battles and make merry, trading stories of their victories while alive and feasting on the foods of the gods, the harvested goods of the celestial gardens, enough to the power of the gods that grants these warrior souls the strength they held in life.
These halls are places of sybaritic pleasure, places for them to feast and indulge in whatever whims should take them, a reward for their service to the gods.