War Mage Artius:
Actually, there is Temple of Shilen Temple here in Keucereus Alliance Base. Inside, a priest named Lelrikia is in hiding.
Even before catastrophe befell Gracia, the priests of Shilen tried to delude many of our people.
What bothers me is that I don't know his purpose. He surrendered to us willingly, which bothers me. But I think we have no choice but to involve him in this. Go to him and see what you can find out about Tiat.
To get to Lelrikia, you must speak with Soldier Ginby in Keucereus Alliance Base. With the proper persuasion, he will allow you to see the priest...