On the Imperial Hive World of Ikara IX, Chaplain Kastor and Apothecary Polixis, brothers in blood as well as in battle, stand firm against the endless Greenskin horde. But a threat is looming. An invasion like no other assaults the broken city of Shebat, as the crazed warlord Urgork arrives to lay waste to the Imperial forces and capture a Primaris Marines for his own twisted ends. As Kastor and Polixis find themselves separated by the disaster that unfolds, the brothers must turn the tide of war to win the battles that rage within their very natures, as well as those upon the battlefield.

    And a secret objective leads to more than the lead character, tech-priest Magos Caul, could ever have bargained for.THE STORYOn the world of Phaedra, a force of skitarii - the front-line soldiers of the Adeptus Mechanicus - embark upon a dangerous mission: to assault a stronghold of the xenos tau and recover a priority asset for their tech-priest master, Magos Caul. As they face the diminutive drones and hulking battlesuits of their alien foes in the jungles of the Dolorosa Coil, their target draws nearer. But just what is Objective Skysight, and why is it so important to the tech-priest?