Received from: Bulletin board beside Bad Yl [Desert] (M20:31)
You will receive this quest after completing two missions from the bulletin board.
One of the Guild members will ask you to regain his stolen family jewels. You have to search five houses, kill the mysterious occultists and find five broken crystals, which together form a whole jewel. The houses are marked on the map:
1st house (M12:29)
2nd house (M3:3)
3rd house (M20:45)
4th house (M20:46)
5th house (M20:21)
After gaining all five, head to [Hatmandor Sewers] (M20:17), where you will find the family jewel hidden in a special stash (M21:14).
After completing the mission, return to Bad Yl (M20:31) and collect you prize from the chest.