Vior'La System

The Vior'la System is a T'au Fire Caste sept well in Ultima Segmentum whose principal world orbits a binary star and trains the Empire's most aggressive Mont'ka cadres. Vior'la means hot-blooded; each year the planet passes between its suns in a Trial by Fire of plasma storms.

Pathfinders once lured an Ork invasion into those storms to burn. Even a World Eaters landing failed once Ethereals restored discipline among the Fire Warriors. This is a T'au sept, not an Imperial hive and not Pech.

The Vior'la System still matters as the Fire Caste's furnace school. Unofficial fan summaries keep the Ultima parent and refuse to file the pin as a human border world.