The town of Coober Pedy lies halfburied in red

dirt, its sandstone caves now the only shelter

from the relentless sun. Once a gold rush hub,

it’s now a ghost of itself, with abandoned mines

and rusting trucks marking the end of the boom.

Into this wasteland rides Hal McCready, an

eccentric inventor with a prosthetic leg and a

mind full of gears, chasing the one thing that

took everything from him: the blueprint for the

Goliath Engine, a machine meant to power the

last rail line to Adelaide.

He’d built it in the old days, before the boom

collapsed, before the company he worked for

vanished with the last train. They’d stolen it,

leaving him with nothing but a broken leg and a

grudge. Now, he’s back, armed with schematics

and a single working gear from the original

design.

Coober Pedy is run by a council of former miners,

men who once dug for opals but now dig for

survival. Their rules are simple: no outsiders,

no machines, no talk of the past. Hal’s arrival

ruffles feathers. The council head, a grizzled

man named Tom Granger, knows Hal’s name — and

the trouble he brings.

Hal finds his old workshop, now a ruin, and

begins reconstructing the Goliath Engine. He

scavenges parts from derelict vehicles and old

mine equipment, but the heart of the machine —

the core drive — is missing. That’s when he

discovers the truth: the blueprint was never

stolen. It was buried with the last engineer, a

man named Jock Hensley, who died in the collapse.

The council had known. They’d hidden the core to

keep the machine from falling into the wrong

hands. But Hal isn’t the wrong hand — he’s the

only one who can finish it. Granger offers him a

deal: help rebuild the rail line, bring the

engine back to life, and he’ll get the core. But

Hal wants more than a deal. He wants justice.

The final piece comes from an unlikely source: a

young Indigenous woman named Mia, who’s been

living on the fringes of town, keeping her own

secrets. She knows where the core is — hidden in

a cave system beneath the old opal fields. She’s

seen the dreams of her ancestors in the stones,

and she believes the machine should never be

rebuilt.

Hal ignores her warnings. He digs deep, finds

the core, and finishes the engine. The moment it

fires, the ground trembles. The rail line is

restored, the town saved — but the cost is

written in the dust.

Mia disappears, and Hal stands alone at the edge

of the desert, watching the first train roll out

of Coober Pedy in thirty years. The Goliath

Engine hums behind him, a relic of the boom, a

symbol of the bust. He thinks of Jock, of

Granger, of the choices that led him here. And

for the first time in years, he feels something

like peace.

The world has changed. The engine runs. The past

stays buried.