Advocate Mara Vex broke a corporate death cult's grip on the Megaplex with six bullets and a system crash. Now she's buried in requisition forms instead — until a signal from beyond the settled colonies drags her back into a fight bigger than the one she just won. Missing an arm, running on a dry-witted AI named LEDGER who narrates her every mistake, and hunted by a Council that treats debt like a death sentence, Mara has to break into a detention block, expose a genetic-debt program that's been quietly enslaving colonists for a generation, and confront exactly what "the contract endures" really means for people like her. Between the Warrens' desperate underclass and the Tier One elite who profit from their debt, Mara has to decide how much of the old rules she's willing to break to give her found family — and her Ledger — a future outside the fine print. A hard-edged sci-fi thriller about debt, rebellion, and the cost of keeping a promise on Mars.