When the traitorous allies of Horus and Kelbor-Hal seized Mars, they sent elite hunters to apprehend key targets and ensure that any loyal resistance would fail. One such target was the legendary technoarchaeologist Arkhan Land, the discoverer of many lost treasures and curiosities from mankind's Golden Age - and the Imperial Fists cannot allow such a valuable mind to fall into the hands of the enemy. Does Land have good reason to fear his apparent saviours?