Karsen Brand was once a celebrated structural engineer-until he refused to certify faulty equipment that would have killed hundreds. His reward: a criminal record, a revoked license, and exile to the Kodiak Rise Spaceport, where he survives by repairing relics from the Resource Rush for hazard pay. His only companion is Iris, an illegally upgraded AI he's hiding from corporate auditors.
When Silas Voss, a cybernetic enforcer for the Tri-Corp conglomerate, appears with a job offer that isn't optional, Karsen is dragged to the *Apex-7*-a Helium extraction platform hiding a dark secret. Behind sealed bulkheads and "weeping walls" of ice, the Tri-Corp is running the Omega Protocol: a genetic engineering program using children as living processors for their encrypted data streams.
One of those children is Claudia-Subject 89, a twelve-year-old girl with violet eyes who can hear the whispers of every machine on the ship. When Karsen shatters her tank and carries her into the maintenance shafts, he doesn't just free a prisoner. He awakens something that's been listening in the dark.
Pursued by Voss and his Centurion mechs, Karsen must unite the ship's terrified crew of miners and mechanics into a fighting force. With the help of Sonya Cheng-a diplomat with her own buried past-and Miller, a gambling addict with a gift for digital sabotage, they ignite a mutiny that rips through the *Apex-7* and sends them fleeing toward the moons of Jupiter.
But the Tri-Corp has three heads. To bring them down, the crew must strike at each in turn:
Shenzhen Composite Logistics, whose data fortress holds the key to Claudia's origins
A.N. Helix Pharmaceuticals, whose ghost station guards the genetic blueprints of the Omega Protocol
The Solarum Group, whose fueling station Ragnarok powers the entire conspiracy-and whose magnetic heart can be broken by a man with a wrench and the will to use it
From the radiation belts of Jupiter to the ice canyons of Europa, from high-stakes card games in criminal underworlds to desperate spacewalks in collapsing slipstream tunnels, The Vagrant's Run is a breakneck journey through a meticulously built solar system. It's The Martian meets Firefly-a story about people who've been discarded by the system, building a family from the wreckage, and discovering that the only thing more dangerous than a cornered corporation is a mechanic who's stopped caring about the rules.