The Magic Rock

Griswold will initiate this quest by telling you about a caravan that passed through the town some time ago. There's not much to this quest. You'll find the Magic Rock on a pedestal on level five. Take your time getting to it, as it is usually surrounded by a fair number of monsters. Return it to Griswold, who will give you the Embryean Band. If you find the rock before you've talked to Griswold, take it anyway, but drop it in town before you talk to him, then pick it up again and complete the quest (this strategy also works for the Tavern Sign quest above).