In The Sixth Domain: ns Zero, Sarah Ashbury is an enhanced human—or cyborg—whose fiancé Calvin is lost in space. She's a space industry sales executive using her connections and knowledge of satellite services to rent time to scan around Jupiter to try to find him. She's also saving up money for a land claim on the new space habitat, which would secure her family's financial future. However, when she's robbbed of all her savings, all of her already astronomical goals slip further away.

Sarah is enhanced by Pairnetics, one of the leading cybernetic enterprises worldwide. In the near future, robots walk the streets and work beside humans in all manner of employ. You may find it wise to interact with intelligent software by becoming part software yourself. Visit Pairnetics to learn more.

The superintelligences that govern Earth are building a secret starship that Sarah's sister, Bette Craft—a renowned architect—has been commissioned to work on. While Sarah and Calvin's dream had always been to explore the stars, Sarah would soon find another reason to try to get involved in the secret project. The Sixth Domain: ns Zero is told from the perspectives of Sarah, Bette, and SID—an ex-warlord superintelligence—and explores how the technology that brings us together also drives us apart, and will ultimately render us vulnerable to an alien reality we're too ignorant to face.