Ever since Thousand-faced Human Fox activated the quest in the forbidden land at the former ruins of Dragon Gate Inn, he became the closest NPC to the questline related to the desert palace. Not only did he become the person who executed the quest, he also became the person who gave the clues for the quest.
From the moment he faced the mercury moat, Thousand-faced Human Fox changed from a follower to a quest NPC who gave off clues for the quest.
With just a few words, Happy obtained a notification from the system.
"Ding!
"Obtained information!
"Based on the experience from Thousand-faced Human Fox, you can generally be certain that the legends of the treasures in the desert palace are just rumors. The real reason behind why the desert palace exists is to suppress a catastrophic and forbidden item that caused blood to spill in the world of wanderers. That is why it appeared in the desert.