Master of Earth

 is a quest in the Undermountain Campaign which takes adventurers further into the Twisted Caverns. This quest becomes available upon completion of the previous quests, Legendary Artifacts and Heroes of Yore.

Steps

 * Talk to Poolpuldopple
 * Gather Clay Sand (0/7)
 * Return to Poolpuldopple
 * Build a Sand Castle
 * Return to Poolpuldopple