Tabius Rasa (Feudal World, Acheros Salient)

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Tabius Rasa is the name of both a star system within the Jericho Reach, and the only habitable planet within it. This Feudal World bears the presence of Humanity with grave reluctance.

Its vast oceans of water are high in phosphates and potassium salts, which require extensive filtration prior to consumption. The planet's weather is dramatic; likely due to the tidal effects of its four moons, with surface winds frequently exceeding 150 kilometers per hour. These storms constantly scour the surface, leaving worn rocks and short, reedy plant life.

Many of their communities are built in the canyons and foothills of mountains that can protect them from the wind. Others have moved to subterranean life, escaping the weather completely. Over the millennia, they have lost virtually all of the advanced technology that carried their ancestors to the planet. By necessity, these survivors have developed agricultural techniques and water filtration systems that exploit the native resources.

The planet's mineral resources are skewed away from metallic substances, and none of the surface plants are harvestable for hardwoods. Bone, rock, and coral are used in place of metals. Sub-aquatic plants are harvested for dense reeds that the natives process into a hardwood substitute.

Between the limited resources and the difficult weather, some consider it a miracle that the colony has survived.

The humans of Tabius Rasa are technologically primitive, but have established a stable society that seems free of Warp-taint (given the proximity to the Hadex Anomaly this is surprising). There is very little internal conflict on Tabius Rasa, which is rare for a feudal society. The planet has also escaped the worst depredations of Chaos reavers.

The natives are often found accompanied by reptilian companions, which they call "Drahkens." These Xenos creatures are a six-limbed, reptilian species that grow up to a meter in body length with a long tail. According to texts found in the Deathwatch librarium of Watch-fortress Erioch, the Drahkens may be both sentient and psychically attuned.