Aeons do not fully exist in material reality as mortals understand it. Some characterize their embodiments more like protrusions into reality from somewhere else. In most cases, from a Domain.
Domains, also known as Dominions, Demesnes, or Realms, do not map to an Earthly physical space. They are strange alien worlds, each with their own nature, their own celestial bodies or stranger skies, and each tied to an Aeon or, in rare cases, multiple Aeons.
The distinction between an Aeon as an entity and their Domain is unclear. Some argue that Domains are simply the interior of an Aeon's body, for lack of a better term. This argument is bolstered by the fact that when one Aeon consumes another, the victim's Domain is either destroyed or merges with the attacker's Domain in strange ways. Within their own Demense, Aeons are beyond challenge. Their philosophies, goals, and fundamental nature are defined by the realm they embody, and vice versa. This reinforces the idea that they are the realm made conscious.
Most Domains are connected to Earth in some way, but the paths to them are rarely directly accessible. They are instead hidden behind the Veil, reachable only through the Shadow.
Known Domains
The Valley
An endless valley filled with vast trees and thick fog, lit by an unseen and lifeless sun. Its Aeon is unknown.
Also known as: Caligory, the Grey, Angae.
The Cacophony
A chaotic world under a discordant sun. Dense jungles bathed in oppressive heat and filled with stalking horrors give way to scorched rock and caverns crawling with ravenous monstrosities. It is chaos and appetite as a place, and the origin of mortal beliefs in hell. Its Aeon is Marabalis, a largely reclusive figure often incorrectly associated with the Devil, Satan, or Lucifer.
Also known as: Sheol, the Tumult, Ersetu.
The Symphony
A realm of rigid order, of marble, warm light, and magnificent artifice. It is inhabited by the haughty angelic Host of Elohim. Its sun sings, producing a tone the living are not equipped to fully hear but which induces deep pleasure and subservience. The Symphony values hierarchy, obedience, and purity of purpose in ways that some mortals might find worse than the Cacophony's chaos. Its Aeon is Elohim.
Also known as: Aion, Astraeos, Heaven.
The Abyss
Its sun is a dark empty circle seen from deep underwater. This is the home of the mad and the abyssal, and the beings that dwell here are poorly understood because those who study them do not remain sane long enough to publish findings. Its Aeon is believed to be a group of primordial entities known as the Atavari.
Also known as: Acheron, the Void, Pravin.
The Wilds
Its silver sun casts light through an endless canopy, a primeval forest filled with an ecosystem of hunting beasts that seem to evolve in real time. The Wilds are a different form of chaos, not entropic but constantly growing and changing. Its Aeon is Mogrifex.
Also known as: the Howling Forest, the Primal Wilds.
The Refrain
Once a Domain of verdant fields and warm repose under a copper sun, now broken. What was called the Refrain is now called the Wound. Eight centuries ago a terrible disaster, rumored to be an attack by a rival Aeon, ravaged this domain. It is now split between zones of feral mutation, zones of abyssal wrongness, and shrinking pockets where its original nature still persists. Its Aeon is Ketra, though only a handful still remember the name.
Also known as: the Wound, Scar, the Dying Place.
The Melody
Its iridescent moon-sun bathes a world of contrasts in a soothing light that cloaks the danger of the place. The Melody is a Domain which operates on the logic of narrative and desire. Time moves differently, geography responds to emotion, and the world seems to change with its occupants. The inscrutable courts of Eidolons and created beings who live here indulge in intrigues, romances, and tragedies with little connection to reason. They also have a long and largely unpleasant history of involvement with mortal affairs. Its Aeon is unclear but is generally referred to as Titania or Oberon.
Also known as: Elfand, Arcadia, Faerie.
The City of Nod
A vast metropolis that predates the existence of any real-world city and, some say, humanity itself. A city of eternal night lit by pale featureless moons, dim streetlamps, and the glow of shuttered windows. Unlike many Domains, Nod heavily populated with mortal sapients, occupied by entities from many other realms. Two facts distinguish the city: it is connected to every other Domain by the roads leading out of it, and its ruler maintains it as neutral ground in disputes between other Aeons, taking no sides in conflicts as long as they do not spill into or impact Nod directly. Its Aeon is Nemo.
Also known as: Nod, the Shadow City, the Crossroads.