Heavy Fighting on Corticant

Following the loss of the device chamber the Eldar were on the back foot but it also freed them from the need to hold territory, and Kel Sandros immediately switched back to its preferred hit and run tactics. Rather than face the Imperial advance  as it approached Bymarsh directly, an aspect warhost attempted to strike the advancing forces from behind using hidden webway portals to bypass the main battle line.

Realising the threat this posed the Dark Angels immediately repositioned a battle company to block the thrust, fully aware that the cumbersome bulk of the Imperial Guard regiments would be unable to reposition and bring sufficient force to bear without additional time.

Sighting an advance party of Eldar scouts the Ravenwing screamed forward into the ruins of a settlement in order to force them out only to find themselves ambushed and almost entirely wiped out by a far larger force concealed amidst the dense terrain. Responding to their urgent distress call Deathwing Knights teleported down from orbit to aid their embattled brethren and battle was joined in earnest. Casualties mounted on both sides and the conflict eventually ended in a stalemate with neither side able to make headway, but for the Imperium such a stalemate was a strategic victory as it bought the Guard regiments the time they needed to respond to the new threat. Once again the Eldar withdrew into the webway hoping to remuster their dwindling forces and strike again before the planet was entirely lost to the grinding Imperial war machine.

As Bymarsh fell to the imperium in the north of Corticant, in the south separate eldar forces were patrolling near their webway portal, when they were attacked by genestealer cults once more. However the allied war host of drukhari and wraithguard were well prepared for the light cultist forces, and the speed of the genestealers did not save them. The eldar patrol called up reinforcements and swept the area clean of the infestation, ensuring vital webway entry points remained under the control of the Aeldari race.