Under Oath

You'll automatically receive this quest once you've complete the quest: A Boy's Dream (PLD AF2). After that, do the following:

• Talk to Vemalpeau (M-7 House, South SD)
• Talk to Najjar (at the bar in South SD)
• Talk to Ullasa (B-6, South SD)
• Open up Castle Zvahl Baileys coffer to get the key item: Mique's Paintbrush.
• Go back to South SD and talk to Vemalpeau once again.
• Go to the 2nd floor of Vemalpeau's house and examine the painting to get a key item.
• Talk to Exoroche at the weapon shop in South SD.
• Go to Davoi and examine the well at G-9 and defeat two NM Orcs to get a RARE/EX item. Trade the item back to the well.
• Talk to Ailbeche in North SD.
• Go to Maiden's Spring (E-6) in Jugner Forest and a cut-scene will automatically occurs.
• Go back to Price Trion's room to finish the quest.

• Ahriman, Abyssal Demon, Arch Demon, Blood Demon, and Doom Demon drop coffer key in Castle Zvahl Baileys. A party of level 58 can go level there (drop down into one of the four holes on the second map) and get good exp and the keys will eventually drop -- not to mention some good loots.
• For the Davoi NMs, you'll need at least two Paladins to fight them. One of the NM is a PLD while the other is a RNG. Have one PLD tank the PLD-Orc (with one mage healing him) and have the rest of the party take down the RNG-Orc as fast as possible. Two party of level 60s can take down the NMs easily, but might need more if lower level.