Location Burnt Chapel
From Naberius (Old Cave)
Rewards XP & gold
1 additional option

You can find the Old Cave up the hill from the Burnt Chapel. Inside you have to fight some Lesser Skeleton Mages (level 5). There is a key in the bathtub that opens the small chest on the pedestal. You will meet Naberius and he will tell you about his creatures that ran off.

Go to the New Miner's Dig in West Valley. Talk to Kagar and then enter the mines that is roaming with a bunch of Lesser Creatures (level 11). One of the creatures will drop the Crystal Skull and a key needed to unlock a chest with some random items. Go back to Naberius to finish the quest. You can now build your creature.