30 years ago, Scintilla, the capital world of the Calixis Sector, was besieged by the great devourer. The tyranid hive fleets were called from beyond our space by a heretech savant. Magos Isaac Van Tillinghast. Tillinghast was declared hereticus excomunicatus and was executed the same day by a cadre of inquisitorial acolytes lead by Inquisitor Sigmund “Kanak” Wulfe. But the damage was already done. Tillinghast has infiltrated the Ordo Hereticus, and sabotaged much for Scintilla. he also lured the Tyranids into the sector, their swarms laying siege to Splectoris, Scintilla, and every world that his influence touched. To this day, people remember the day of the swarms.