The Traitor

''' Warning: Slaaneshii things ahead, if you are reading this you must be of Security Level Alpha 99 Primaris. If you are not, your location has been sent to the closest Blackship, Ordo Hereticus Vessel, Black Templar Crusade and whom ever is left from Cadia. Resistance is futile. ''' https://archiveofourown.org/works/26780785. The Ordo Hereticus and Mathematicus called, they want their traitor and mathematician back, respectively.