Ann has dreamed about being an off-world technician for years and it seems she's finally got her big break. It's her first job, fixing the generator for an asteroid mining facility in the furthest reaches of space. Except when she arrives, there doesn't appear to be anybody there. The power's working fine and there's a mysterious countdown clock on all the computer screens.
Then there are the things that only come out at night. And on this asteroid, the days don't last very long...