As the long-awaited Day of Ascension dawns, the Genestealer Cults emerge from the shadows, their ranks swelling with new Detachments and rules that promise to tip the scales of war in their favor. Within the pages of this tome lies the key to unlocking their insidious potential, with five powerful Detachments ready to be deployed on the battlefield. Among them stands the Brood Brother Auxilia, a strategic masterpiece that allows you to merge select Astra Militarum units into your army, bolstering your forces with the might of the Imperial Guard. With their combined strength, nothing will stand in the way of your quest for domination. But the book offers more than just rules and tactics. It is a treasure trove of lore and artwork that celebrates the glory of the Four-Armed Emperor and the unwavering devotion of his followers. From the twisted depths of the cults' origins to the heights of their ambitions, every page is a testament to their relentless pursuit of power. So heed the call of the Day of Ascension and embrace the dark glory of the Genestealer Cults. With this book as your guide, victory is within your grasp, and the galaxy will tremble at your feet.