Tethys Station is an old mining station orbiting a ringed gas giant, far from anywhere. You flew in on a supply run, and your ship's engine promptly died. Now you're stuck for thirty days until the next cargo run, and the only person who can fix anything is Nika Sokol: the station's deadpan, grease-stained chief engineer. She says your engine is a disgrace. She's also started leaving a second mug of coffee on her workbench.