2035. Arthur Miller and Maria Kolt are thirty-three, married, and among the last people on Earth who still believe money is a kind of immortality. Their company built the infrastructure that lets the wealthy archive themselves against death — and quietly let the backups of everyone else lapse, unremembered, unrenewed. It works, until it doesn't.
When the global signal network fails in an event the survivors call the Breach, the discarded dead come home. Not as ghosts in the traditional sense — as bodies. Decaying, upright, and occupied by something far older than any grief, they drag themselves back through the wires and towers Arthur and Maria built, using every screen still drawing power as a door. Fleeing their collapsing tower on the coast, the couple moves through the wreckage of the cities that made them rich, learning the new world's only rule as they go: signal calls the dead, and only true silence can starve them.
But the world isn't finished with them yet. Somewhere in the wreckage waits Elena — the specific person Arthur let go, wearing her own face, carrying a debt he has spent years pretending he didn't owe. Maria carries a debt of her own, older and stranger, that has grown into something neither of them can outrun. As a presence far larger than any single ghost begins closing in on everything they used to own, Arthur and Maria are left with one unbearable choice: keep reaching for a way back to the life they built, or let it all go, together, into the quiet. The Firmament is a horror story about the bill that comes due when the dead you discard remember exactly who you are.