The Realm
Eidolon runs on story the way other worlds run on physics.
The Orrery’s gears carry worlds through the dark, and the great mirrored Pendulum swings beneath them, flinging out the day and drawing it back again. Everyone agrees the mechanism is slightly off. No two people agree on how.
Around the roots of the World Tree sprawls Metropolaris: a city of ambition, grime, and the absolute conviction that it is the most important place in existence.
It is right, provided you ask the correct people. Fifty-five million live in its rings, and every one of them knows exactly how close they got.
Kingdoms expanded until a thorned forest stopped them, then pretended they had meant to stop there. The Bramblewoods make war inconvenient.
Which forces kings and merchants alike to reach for the instruments that need more paperwork than armour: diplomacy, espionage, advantageous marriage, and the occasional hunting accident.
Past the marchlands the map stops being reliable. The Fae hold a country that will not stay charted, the Takwin keep their elemental dominions, and the Realm quietly dreams a second face of itself that its own inhabitants have never thought worth distinguishing.
And there are a great many other things out there that prefer not to introduce themselves first.
The gods of civilisation were Heroes first, deified by the sheer size of the standing they built. The Emperor and the whole Imperium are a found family of near-deified Heroes, running the Commonwealth from partway up that same road.
It was never a closed path. Grow a legend large enough and immortality is on offer. Heroes are the most powerful players on this stage, which is not remotely the same as being safe.