Start by going to Rorina's castle south of Thais, here:
Rorinamap1.PNG
First Part
Ask Rorina for a mission.
Rorinaq1.png
Player: hi
Rorina: The gods must be praised that I am finally saved.
Player: mission
Rorina: Oh, a new explorer? Well how intriguing. Would you like to embark on your first Quest?
Player: yes
Rorina: Great. It just so happens that we had a burglar not long ago that stole one of my finest crystals, and I need you to try and find it and bring it back to me. Sometimes at night I've heard what sounds like footsteps coming from beneath the castle, which is odd because as far as I know there's no basement, but be my guest to look around. Return to me if you manage to find my missing crystal and I will be sure to reward you for your efforts.
Go outside the castle and find the secret basement entrance hidden behind a bush here:
Rorinaq2.PNG
Follow this path to get to the crystal room:
Rorinamap3.PNG
Note: There's another reward at the other mark on the map, through a secret passage.
