Escort Milia's Guard.
If you fail to escort her safely, abandon the quest and then talk to Milia's Guard to reacquire it.

Show Quest Info

Introduction

Milia's Guard seems to be dead, but can speak and walk like a living person. Your intuition tells you that she is leading you down a dangerous path and she will need protection.

NPC Dialog

I haven't seen a live person for many years! I
already know why you're here. Hurry, follow me!

Quest Completion

Milia's Guard stands motionless as the entire tomb
turns silent...