A Mars that held its ocean. A Mars whose dynamo did not quit. A Mars where biology ran its long experiment — and one species learned to read the field that the planet wrote.
The northern lowlands filled and stayed filled — a shallow world-ocean covering 70% of the northern hemisphere. The southern highlands are ancient and magnetised, their crust a fossil record of a dynamo that ran for half a billion years before slowing. That fossil field is still emitting.
Geography is destiny. The civilisation that controls the Scar controls the highest sustained flux zone on the planet — and controls everything else.
| Northern Ocean coverage | ~70% N. HEM. |
| Surface gravity | 0.38 G |
| The Scar — total length | 4,000 KM |
| The Dead Peak — summit | 40 KM ASL |
| Axial tilt range | 0° → 60° |
| Ambient magic at the Scar floor | VERY HIGH |
Persistent radiation from Mars's early dynamo, locked into ancient magnetised rock four billion years ago. Not uniform — strongest at the Scar, absent at the ocean floor and the Dead Peak's summit. The one fictional axiom: Core Flux is real. Everything else follows from the geology.
What happens when enough nervous systems interact with Core Flux across enough geological time. An emergent information layer: memory, pattern, precognition — and eventually gods. Magic is not miraculous. It is what complex biochemistry does with a persistent energy gradient. That is all.
The dynamo slows. Core Flux fades. The Morphic Field dissolves. The ocean freezes and then sublimates. Every civilisation that built on magical infrastructure collapses within a geological instant. The planet becomes what we know: red, silent, stripped of everything this encyclopaedia records.
A 4,000 km tectonic rift. Rifting exposed ancient magnetised rock along the fault lines, creating a linear Core Flux upwelling that runs the full length of the canyon floor. The tributary chasmas — 15 km wide, 7 km deep — are where the canyon peoples built their cities.
Every culture that borders the Scar calls it sacred. Every culture that borders it goes to war over it. At the peak of their power, canyon civilisations raised structures across floors wide enough to lose a small nation in.
"The planet ends as the real Mars: red, silent, stripped. Everything in this encyclopaedia is a prequel to that ending. The prophecies described it accurately. No one believed them in time."