There is a path carved from elder bone leading into a dark pit in space, now lodged into #horizon’s-end. Strange cuboid shapes scatter from a hole puncturing this pitch black. They've become stationary in the Astral Sea, branching off into scattered paths and ranging in craftsmanship from perfect, smooth cubes to things that clearly came from the inside of a grand creature. The surrounding space around each cube is carved clean out of the sea, providing atmosphere and wildspace-- while also being empty, dead zones of extended Void.
The path to the threshold down into the Void is pretty straightforward, if one is to step foot on any of these shapes. The surfaces of each monolith is non-Euclidian in nature, flattening out into a long pathway before the traveler, stretching past the horizon and into the Void itself.
Studied astrologists and physicists of the Corpse have spent many rotations in the Void researching these shapes as they extended outward from the Corpse, and many more historians debate over first-hand accounts on how the hole in the sky initially opened. The crafter of these bridges was undoubtedly Ammon himself, and many will claim he was the one to pierce through the Void and into the Astral Sea, but this, in itself, has never been proven. Evidence by and large points towards the opening of the way beyond being well past Ammon's fall, legend describing as thought there were suddenly stars in the sky one stray night.
Art credit to me (left), Gabriel Levesque (right)
Otherwise known as "The Deep Grave", the Void is a black hole in the Astral Sea that houses the floating body of the Blossoming Corpse. The inside of the hole in space is lit with light from the Corpse's dimming halo, an aura of day which rotates around the body of Necroanthos, leaving the other side of the body to sit within pitch black for its nightfalls. Historically impenetrable to outside starlight, the small opening that has manifested within recent memory has resulted in starlight being passively visible wherever the hole in the Void sits above.
The Corpse acts as the Void's center mass, anything that passes the pitch black threshold being brought with sudden force to the world's surface. An event horizon, the deep gravity well of Necroanthos has resulted in traversal up and away from the Void to be rather difficult for most besides Ammon himself, many of his creations towards the sky-- often called Stairways-- remaining traveled to this day. Those who have made the trip to the stars often describe the look down to the corpse to be impossibly long-- suggesting the space inside the sphere to be much bigger than it appears on the sea-facing side.
Art credit to me
The surface of the Corpse, colloquially called "The Above"-- besides by those that once fared from The Above itself, at least-- is where the halo of light shines down across vast fields of flowers and wild grass, across rolling hilltops peaked with snow that make up the world's spine, across oceans and rivers that channel along the ancient form of the body. The environments of the Above are plentiful and diverse, swampland and temperate forests alongside coasts, as well as dry deserts and cavernous cliffsides. The prehistoric and pre-war kingdoms and borders are lost to time, modern denizens having inhabited the world without the expansive need to define edges between others.
Among some locations on the Above are:
Along the spine of the giant, the Column City is a necropolis of structures, bodies, and oddities of flesh that were forged towards the construction of the Stairways. Many have become one with the landscape, the army of Ammon being used as if masonry by the time of the Great Lonely. Columns of elder bone stretch up and into the sky, well into the Void. Some denizens of Necroanthos avoid this area, the sentient, unmoving structural abominations and emptied out corpse-brick being an omen of a worse time. Vegetation, likewise, is not particularly present here, and most structures are remnants of battlefields and old kingdoms, decayed over time. However, travel down the World-Paved Path most likely will end someone up here and it acts as a passageway into the unknown for many would-be adventurers.
The City of the Forearm, Olna is a lively necropolis situated inside the crossed forearms of the corpse. A loop of earth moves through the sky-- the arms themselves-- cityscapes and structures branching up well enough into the sky to reverse through the gravity well and bridge full across. Once akin to a cave opening into empty space, it is now a hub for knowledge, technology, and research of all kinds, developed mostly after Ammon's fall by bettering undead. As the hub of advancement, there is an innate acknowledgement of this space as where the dead first broke through to the Above, the cavern down to the Below still yawning and agape, acting as a bridge between worlds.