Yanglin would be an unremarkable world if not for the Tauma Black Hole, located just outside the star system. The region around the Yanglin system developed a reputation as a starship graveyard: the black hole's small size and unusually small sensor signature allowed it to go unnoticed, leading to numerous mysterious disappearances over the cycles. Yanglin was the only habitable planet nearby on which to make repairs, but between the acidic atmosphere and the hostile natives, few ships that landed there ever left. When the Peacekeepers entered the region, they mapped out the black hole after losing a few ships to its gravitational distortions. Since then, most ships have been able to avoid the local hazards.