Deep in the Viorlosan desert, an exile both revered and reviled lives a life of solitude. Farsight has retired his uncanny alien sword and bleeding-edge battlesuit so that he and his comrades can prosper in peace. This life of serenity is cut short when the jaws of a Tyranid bio-fleet close in on Viorlos, threatening to devour Farsights adopted home. As the battle rages, treachery comes from within in the form of the scheming ethereal AunVa, and more challenges await Farsight and his allies.