By the time Zelda is done restoring Goron City and Eldin Volcano in The Legend of Zelda: Echoes of Wisdom, there are still many more quests to do and people to help. The Mountainous Mystery side quest is a fun mission where the player has to solve puzzles to avoid a lava-filled death. These puzzles can be fairly difficult, and acquiring the quest can be confusing. However, it’s well worth the time and effort it takes to find and complete this quest.