Okay , here is the mission details :
at little lond winded...
The quest, again begins with Curilla in Chateau d'Oraguille. She will ask you to continue your investigation on what had happened to Raimenard, her father. From there, go to Sharzalion in South San d'Oria again, and he will tell you, that the only way to speak with a spirit that he knows of, is too dangerous. This however does not stop his friend behind the bar from telling you how to do it, because he wants to hear a good story! You will be told that the only way is to throw an old coin into the Fountain in the ruins of Fei'Yin. Fei'Yin is located far to the North, at the Northern end of the Beaucidine Glacier. Once there, proceed north until you get to the large, central Fountain Room, which is at (H-8) on the first floor. In this room, there is a Notorious Monster named Miser Murphy. He spawns, every time a Red Mage that is at that point in the quest enters that room. (If you are going to kill him enough times for every Red Mage, make sure they all are at that point in the quest, or else he will stop spawning). Miser Murphy is about level 60ish, is a normal Ghost style monster, and is doable with about 6-12 level 56+. He is not very difficult, but can be rather.... obnoxious. Also watch your levels... the room is full of Revenants and Clockwork Pods which you do not want them to agro you. When you kill Miser Murphy, he drops an Ancient Coin. Trade the coin to the point at the North end of the fountain, also in (H-8). You will be treated to another event.
After the event, return to Sharzalion and tell him what you saw. Then speak with his friend behind the bar again. You will be told, that they can not help you further, but maybe one of the other patrons can. If you speak to the Galka in the same bar, he will tell you, that while he was exploring Garlaige Citidel, that he came upon a strange box, that he was unable to open, however with a Nail Puller, you may be able to open it.
Now, head to Garlaige Citidel, bring alot of friends with you for this though, as this part can be rough. Immediately behind the first Banishing Gate, in the rooms right there, you will find an Oaken Box. Clear all the Undead from those rooms before you examine it though. When you do, Guardian Statue will spawn. It is recomended to have about 18 Level 55's or about 12 Level 60s for this part. Guardian Statue is a "Doll" type model, it CAN explode like a bomb, but I don't recall seeing this one do so. It also has an AE attack that does about 200-300 damage to everyone around. When it is dead, it will drop a "Nail Puller", trade this to the Oaken Box, and you will see yet another event. Return to North San d'Oria at this point. As soon as you enter North San d'Oria, you will witness another event, complete the quest, and receive your Chapaou. Also, for an added bonus, you get the new title "Paragon of Red Mage Excellence