The discovery of alien nanomachine technology in the 1960s accelerated human development at a pace that would have seemed impossible before. A renewed space race scattered humanity across the solar system within decades. It looked like the beginning of something extraordinary. Then the reports started coming in: ships going dark, stations malfunctioning, people disappearing without trace. The mystery building beneath the surface of the expansion era is now impossible to ignore. Brave astronauts are the ones who will have to find out what has been happening — and what, if anything, humanity can do about it.