Exile to Harmony Station

Four thousand people on a spinning diplomatic station between Earth and Luna. An Earth–Luna accord, held in person, every day. An exiled teenager finds a corridor that doesn't exist on any schematic.

Harmony Station sits at the gravitational balance point between Earth and Luna — the only place in the inner system where the two governments meet on neutral ground. Four thousand people share its rings: gravity changes between them, the air smells like recycled nothing, the ambassadors stay. The posting is permanent. The work is daily.

The accord that holds Earth and Luna in cooperation isn't a document. It's the daily work of negotiating what each civilization needs from the other — trade routes, migration, research access — and then renegotiating tomorrow. Most of that work happens on Harmony Station, quietly, in person, before anyone needs to write it down.

Hannah Mason is seventeen, exiled to her estranged mother's station after a VR-addiction incident on Earth, and determined not to belong. Then an emergency drill earns her access to the station's AI mesh, and the mesh starts showing her things. Power draws that don't match the logs. A corridor that shouldn't exist. She opens a paper notebook. She stops trusting her tablet. She starts building a case.