Samir Sirka

The Necropolis
If you try to talk to him while at level 4 or lower, he will reply:
 * Samir Sirka: The Shadow King...who knows what evil awaits us? There is still time to prepare. Excuse me, I must meditate and gather my strength for the fight to come.

If you are at level 5 or higher, however, he will reply:
 * Samir Sirka: The Tomb of the Shadow King awaits. Prepare yourself!
 * You: What danger will I face down there?
 * Samir Sirka: Nsu sleeps in his crypt, shunning the light of day. The only way to awaken him is to snuff out the lights. When the tomb is dark, Nsu will come forth. Remember: the darkness is the source of his power. Without it, he will fall.
 * You: Right. Turn out the lights to wake up the mummy. Sounds perfectly sane. (Bestow quest)
 * You: I cannot go right now. (Walk away)

Talking to him after acquiring the quest, but before completion, will make him say:
 * Samir Sirka: Nsu lurks down there in the dark. You must destroy him.

On completion of quest, he will congratulate you with the following:
 * Samir Sirka: Nsu is no more? An astrounding feat, I must say. The Flame will always illuminate the darkness, no matter how hopeless it must seem.
 * You: It was a difficult fight but I triumphed in the end.

After completing the quest and taking the reward, if you talk to him again, he will reply:
 * Samir Sirka: Excellent work, my friend. You vanquished Nsu and helped us step that much closer to Nerezza's lair.