Sept Vai'hla

Following the Damocles Crusade and Farsight's return across the Gulf, Tau expansion kept proceeding to new worlds. One of these was dubbed Vai'hla by the colonists, an unpopulated world with sufficient resources to support a sizable population. Seismic surveys returned some strange readings, but as they did not appear to be dangerous, the Earth Caste set about settling the planet. The population grew, industry was established, and Vai'hla became a full-fledged Sept of the Tau Empire. Some generations later, the anomalous seismic readings were suddenly explained when great fissures opened into blackness across the planet, and silver robots swarmed forth, terrifying the people but pointedly avoiding damaging any Tau, and even miraculously repairing a few items in their path. Following in their wake was a towering Necron lord, who announced himself as Nemesor Wo'den of the Namdoss Dynasty, and decreed the Tau had one planetary month to vacate his Tomb World. Surprised to find a potentially reasonable personage leading such a powerful force, Aun'O Frey, the supreme Ethereal of Vai'hla, sent Water Caste diplomats to contact the Nemesor and determine what, if anything, could be considered common ground. Talks revealed that the Necrons were determined to reclaim the galaxy they once ruled, and would destroy any who stood in their way, but Wo'den himself found his goals temporarily aligned with those of the Tau, and would show them clemency for the time being. Realizing that a 'temporary situation' to a being so ancient may well outlast the Tau Empire as they knew it, Aun'O Frey declared peace with these Necrons to be in keeping with the Greater Good. As the years passed, a reluctant trust grew between the two societies, even resulting in frequent joint military operations between the Namdoss Overlords and Shas'O Tyr, the high commander of the Vai'hla Fire Caste.

Inspect the Force
Custom Tau Aegis Defense Line