Verghast is an Imperial Hive World in the Sabbat Worlds Sector that became a crucial point of contention in the Sabbat Worlds Crusade in 761.M41 when Chaos corrupted the people of the hive city of Ferrozoica and these Chaos Cultists, numbering some 13,000,000 people, almost the entire population of the hive, in turn attacked their old rivals, the nearby loyal hive cities of Vannick and Vervunhive. Vervunhive, despite having a larger population, could field military forces numbering only about 500,000 troops to meet the Zoican forces, so its leaders sent out an astropathic plea to the Imperial Guard for forces to defend itself and to the Northern Collective hive cities of Verghast for Planetary Defence Forces (PDF) to hold the line against the vicious horde of Zoican Chaos Cultists, heavy a