The progress of the Three Emperors' Tomb had surprised Xiao Mu, and it had also enlightened him about much information that he was previously unaware of.
Firstly, the main activity area of the Five Elements Sect turned out to be the Three Emperors' Tomb. Secondly, among the enemies of the Lord of Bai's Mansion during the Ancient Great War, there was actually an ancient ancestor of the Five Elements Sect.
The power of the Lord of Bai's Mansion was even more formidable than Xiao Mu had imagined. Despite being a True God like the others, the Lord was able to suppress Immortal Divine Sovereigns, Curse Ancestors, and Five Elements' ancient ancestors, as well as the Divine Monarchs of the Five Virtues, proving to be far stronger than the average True God.
Thus this piece of information further solidified Xiao Mu's plan to find the Lord of Bai's Mansion.