Close up of the mask.
Death's Head mask was a face mask worn throughout several eras by Mortanius, the Guardian of the Pillar of Death. It was alabaster-white, and seemed to alter the contours of its wearer's face, giving him a gaunt, skeletal visage. The mask sported no eye slots, with only black, empty sockets in their place.
Throughout all of his interfaces with
Kain during , Mortanius wore the Death's Head mask, concealing his face. He had also worn it centuries earlier in Blood Omen: Legacy of Kain Avernus Cathedral, when condemning Malek for his failure to defend the Circle of Nine from Vorador. Mortanius could easily summon and dismiss the mask through magical means. [ Blood Omen]
, during the Legacy of Kain: Defiance fourth timeline's events of , Mortanius was seen wearing the mask in the Blood Omen Avernus Catacombs while leading the Cenobites in their worship of Hash'ak'gik/ Turel. When Raziel confronted Mortanius after slaying Turel, Mortanius dismissed the mask, speaking to the Hylden Champion directly. He donned it again at the end of their discussion, before teleporting away to battle Anarcrothe and Kain at the Pillars of Nosgoth.
The mask was apparently destroyed or lost when the
Dark Entity killed Mortanius by fully possessing his body.
[ Blood Omen]