Palantir fully retaken by Imperium

Despite the (re) invasion of Palantir being nominally a loyalist venture, the Grey Knights had no qualms about aiding their imperial comrades in order to deal chaos a fateful blow. Already aware of the malign influence of chaos in the Hadron Expanse, the astartes chapter had told Vorushko in no uncertain terms that where the "loyalists" had goals in line with their own, they would assist them. Vorushko understood this position and in any case never considered the Grey Knights to be truly part of her "Crusade" - or her argument with Hathek. Only the Inquisitor lord's penchant for allowing guardsmen who had fought daemons to survive had drawn the Knights to her side.

The Grey Knights made no explanation for their arrival at Palantir, but Barham's battlegroup were not particularly aware of the Crusade war going on in the Foramen in any case, and cheered the arrival of the Emperor's finest. Dropping simultaneously on Bree and Dale, the astartes found pockets of resistance, mainly from the Emperor's Children. It seemed as though the Emerald Serpent had not been keeping the system particularly defended, and the Orde Malleus marines made short work of the few traitor marines and daemonic entities they found. Having secured the remaining planets, the Grey Knights ordered all settlements which had come into contact with daemonic beings to be cleansed. The liberation of the inner planets soon became almost as hard to bear as the chaos invasion itself.