The Rock

The Center Worlds. Within 10,000 parsecs of the Galactic core is a zone that was seeded a million cycles ago by the Mesotra. Now it is at war, from within the Confederacy and the Frontier which surrounds it. The crew of the rogue ship Rebel's Cause is on a mission to find the lost home world of one of it's crew members when they encounter a intergalactic wanderer and decide to mine it for ultra-pure diamonds.