The Imprisonment of Mastrius

While exploring a dungeon in the northern regions of Vvardenfell, I encountered the vampire Mastrius deep within its bowels.

It seems Mastrius has been locked in this dungeon for centuries. He had terrorized the surface for years until the Daedra Azura intervened. Azura cast a spell on Mastrius, trapping him inside the dungeon and draining him of his strength.

Mastrius has asked me if I would be willing to help him escape from his prison. If I do, he promises that the two of us can rule the world outside, and will have plenty of mortals upon which we may feed.

I have agreed to help Mastrius escape from this dungeon. He has told me he needs Spell Breaker, a powerful artifact that will act as a conduit for the spell. I will also need to bring him a daedra's heart, which should give him the strength to break the enchantment.

I have decided not to assist Mastrius in escaping his prison. I have no wish to meddle in the affairs of this vampire, especially when it concerns a Daedra Prince.

Mastrius tells me that Spell Breaker is located in Bthuand, a dwemer ruin north of this tomb.

I have returned to Mastrius with the Spell Breaker and the daedra's heart, and have given them to the ancient vampire. He has asked me to do one final thing for him: he needs to siphon off some of my power for the spell to work.

I have agreed to allow Mastrius to borrow some of my strength for the spell. Together, he and I can rule the outside world.

I have told Mastrius I will not allow him to use my power to make himself whole. I have done enough for this vampire.

After draining some of my health and fatigue, the vampire returned to full strength. He has decided I am no longer necessary, though.