Way to unlock: Read the letter.
Quest giver: - (M3,31)
While in the canyon to the South, close to the lake, you find a letter next to the rocks. After you read it, you learn about the nearby statue (M3,31a). Get there and summon the dead.
To do that, turn around the statue in the clockwise direction. Then, a corpse rises from the nearby grave - kill him to complete the quest.
Rewards for completing the quest:
- 40 Influence points