Elven Hierarch Asterios is concerned that the Mothertree of the village is being contaminated. He asks you to go to the lake, which is the water source, north of the village to investigate the cause of the contamination.
1. Talk with Hierarch Asterios in the Elven Village main building (with the trainers). He will give you a Hyacinth Charm.
2. Hunt Plague Zombies until you get a Plague Dust. The zombies are only in one spot - the head of the river to the northwest of the village, and they are poisoning the water!
3. Return to Hierarch Asterios. He will confirm the dust is the poison, and send you to get 5 more to study.
4. Hunt Plague Zombies until you have 5 Plague Dust.
5. Return the 5 dust and the charm to Hierarch Asterios.
