Talk to Kwa. Find out there is trouble afoot. Agree to get bog water spirits to vanquish his thirst. He hands you a coin to pay for the drinks.
Head east to the Hole in the Wall Tavern. Be sure to discover The Fountain of Valor ( 771, -17, -114 ) Copy/waypoint 771, -17, -114 on your way. Talk to Waitress Brooak ( 740, -21, -111 ) Copy/waypoint 740, -21, -111. She takes the coin and gives you bog water spirits.
Return to Kwa. He takes the spirits and rewards you.