Terraformed centuries ago into a breathable red-and-green world, though the Society keeps the lowReds below convinced the work is still underway. The heartland of Darrow’s story.

Earth’s Moon, and the seat of Society power. The Sovereign rules from the Citadel above Hyperion City; beneath it sprawl the Hollows where the lowColors of Luna live.

The birthworld — old, storm-battered and half-abandoned, but still politically potent. Home of ancient institutions and the graves of the pre-Society world.

A scorched inner world of shield-cities and solar farms. Its strategic position makes it one of the most fought-over battlegrounds of the later war.

The moons of Jupiter and Saturn — Ganymede, Io, Europa, Callisto, Titan — ruled by the Gold House Raa and its allies, who kept a code of honour the Core abandoned long ago.

Not a place on a map so much as a crucible: a walled wilderness on Mars where the Society’s teenage Golds are split into twelve Houses named for the old gods and made to conquer one another.

Mars’s two moons, built up into orbital dock-cities — shipyards, trade hubs and the first line of the planet’s defence.

The Gulf between the inner worlds and the Rim — mining rocks, hidden bases and the kind of lawless stations where the Sons of Ares could operate unseen.

In the sequel arc, worlds freed by the Rising fill with displaced Reds — promised paradise, housed in mud. Lyria’s story starts in one such camp.