Tau suffer major setback on Ergura's Fall

While major fighting continued on Haven, the Imperium were still keen to advance on Ergura's Fall. the world had become a conflict between the Tau, Imperium and forces of chaos, but as the tide turned against the worshippers of the dark gods strategically, imperial command judged that a general withdrawal of chaos forces was now likely. The necrons continued to be a problem around their tomb worlds, but the Tau were the major force that needed to be dealt with.

General Maximus was unable to allocate any fresh troops to operations on Ergura's Fall, so Inquisitor Huron, having been rescued from his excursions on Haven, turned to his own contacts to defeat the Tau, securing the assistance of a force of Grey Knights, who deployed onto the world and immediately planned a shock assault against Tau positions.

The Tau were taken completely by surprise by the appearance of the elite forces of the Inquisition, and although they put up a strong fight, the battle in the rolling plains that characterised the system's only habitable world was extremely one sided. The Tau forces who engaged the Grey Knights were obliterated, and the xenos force lost an entire Hunter Cadre and were forced to retreat. The Tau forces on Ergura's Fall had now lost a third of their strength, and the Imperium now had breathing space to finish off the orks on Haven before turning their full strength to securing the second system vital to controlling the Hecate Gap.