Search under quests
The First Fight

Beat the Tyr Spirit Sword (False) in Swordgrave and then talk with the Tyr Spirit Sword. (If you don't beat the Tyr Spirit Sword (False) within 30 minutes, the Tyr Spirit Sword (False) will disappear. You will have to drop the quest and retake it. Then the Tyr Spirit Sword (False) will appear again.)
 

Show Quest Info

Introduction

The Tyr Spirit Sword's anger is released and it has summoned six evil spirits: Pride, Envy, Sloth, Greed, Gluttony and Lust. It offered to let you join them and live forever in spirit. You refused and now will have to fight it, but you cannot defeat the Tyr Spirit Sword while it is so powerful.

NPC Dialog

If you will not join me, then you will die! Your flesh,
your spirit, your soul, they will all be mine!

Quest Completion

You have refused me again, then I will not be so
generous. I will have your flesh, spirit, and soul!
Human, your spirit is stronger than Pride, Envy,
Sloth, Greed, Gluttony, and Lust. I will have it!