The quest can be started at lvl 19, but I advise just start at Level 20 because the new skills will only be available atthis level.
1) Talk to Priest Manuel at the church in Gludio. He will give you a Crystal Medallion and tell you to find a girl who can work miracles near Gludin Harbor.
2) Go to Gludin Harbor and find the miracle girl, her name is Allana, she's up on the hill near the lighthouse. She will spawn three lizardmen mobs so be prepared. You will get quest item, Lizardman Captains orders.
3)Then talk to Allana again and receieve Half of Diary. She wants you to speak with Perrin, he's not too far off on another hill.
4) Talk to Perrin.I chose go to hell but I imagine either does the same thing (update, it does). He spawns quest monster Tamil. kill him.
5) Talk to Perrin again. He gives you Swindler's Money.
6)Return to Allana. She tells you it is too late for her brother and tells you to keep the money. Half of Diary is replaced with Allana's Diary.
7) Return to Priest Manuel at the church in Gludio. Allana's Diary, Lizardman Captain's Orders, and Swindler's Money are replaced with Leaf of Oracle.
8)When you reach level 20, talk to High Priest Raymond at the church in Gludio. He will take the Leaf of Oracle and you are now an Oracle.Congratulations!!!!