Seduced by The Dark Entity , Mortanius was unwillingly controlled and forced to kill Ariel .
At the Pillars , he witnesses Mortanius arguing with Anarcrothe the Alchemist , who reveals that Mortanius is a guardian , and culpable for both Ariel and Kain 's deaths .
Seduced by The Dark Entity , guardian was unwillingly controlled and forced to kill Ariel .
At the Pillars , he witnesses Mortanius arguing with Anarcrothe the Alchemist , who reveals that Mortanius is a guardian , and culpable for both Ariel and Kain 's deaths .