Kill Water Fiends to recover Wise Mari's Staff.
Since you were so helpful at the mines, would you be willing to help us with a small problem here at the temple?
Wise Mari has been complaining recently of a disturbance in his temple.
The water elementals have gotten quite playful recently, and made off with his ceremonial staff.
If you could help him, I would be most grateful. I may even put in a word with the Jade Serpent for you.
Just follow the path to the north.