The Skitarii are the soldiers of the Machine God, the tireless legions of the Adeptus Mechanicus. These are the holy warriors who carry the word of the Omnissiah throughout the galaxy, destroying the foul machines of xenos and renegades and embodying the Quest for Knowledge itself. Ancient technology is discovered on a forge world overrun by the forces of Chaos, and a legion of skitarii is sent there under the command of Alpha Primus Haldron-44 Construction. A sudden cataclysm cuts Stroika off from his Tech-Priest overseers, and he must rally his remaining forces to fight the corrupted machines and Chaos Space Marines before victory slips from his grasp. This book is a fantastic glimpse into the inner world of the Adeptus Mechanicus. It represents the resilience of the Mechanicus in the face of absolute danger. Besides, what could be better in the fight against mad Chaos than cold, calculating cybernetic intelligence and mechanical efficiency?