The quest is broken.
You have to give an antidot to Ronk and Pony in Adventurers plains, but you can give it only to one of them. the second one does not work... tried on three chars.
relog or talk to the NPCs involved in the quest does not help.
You can only talk to Myad again when the time to do it is over...
He is very disappointed then, so am i ^^
Edited by LaLeLu, 01 September 2014 - 11:36 AM.