From their shadowed origins to the desperate battles that ensued when half of them rebelled against their father, the Sons of the Emperor – the vaunted primarchs – were among the greatest of humanity's champions. They were warriors without peer and heroes whose deeds became legend. From a tale of Ferrus Manus in his earliest days to mysterious murders that lead Rogal Dorn into peril on the eve of the Siege of Terra, the eight tales in this volume lay bare key moments in the lives of these mighty heroes.