More fighting on Ergura's Fall

Events on Ergura's Fall between the Tau and Imperium, as well as the second Imperial landing on Haven caused the forces of chaos to rethink their strategy. Instead of focussing on Haven, the worshippers of the dark Gods realised that the conflict on Ergura's Fall now presented an opportunity, and a small force of cultists was shipped to the world in order to carry out a new offensive for the chaos domination of the Hecate Gap.

While their forces on Haven consolidated their positions, waiting for an opportunity to advance, the cultists on Haven performed a dark ceremony, summoning a daemonhost and smashing into the necron lines to their south. The battle caught the necrons by surprise, and the ancient xenos were forced back, placing the chaos forces in a commanding position to take the high ground in the southern hemisphere.

Meanwhile the Dark Eldar, with no particular interest in the strategic situation of the Hadron Expanse, opportunistically raided the Tau forces. The engagement was brief, but the Tau were defeated, forcing them to withdraw forces from the front line with the Imperium.