Lieutenant Xedro Farren is a Primaris Space Marine, superior in strength and power even to the Legionnaires with whom his squad sent to their aid fights alongside. Together with his fellow Primaris, he supports the Dark Angels in the confrontation with the T'au army, whose psyche is traumatized by the events of the past. The xenos seem hellbent on destroying their own allies, but it soon becomes clear that the real enemy is the mysterious distributor of a psionic curse that can plunge many planets of the Imperium into madness. Worlds burn in the flames of war, an unthinkable deal is struck, and Lieutenant Farren peels away layer by layer of lies, behind which lies the terrible truth. Is there even the slightest hope that he will get out of the web of intricacies, preserving his life and honor?