Everyone in the Heavenly Soul Sect agreed that what happened at the Coronation Grounds had been done by the Death Soul Sect. However, the Death Soul Sect had never produced any particularly powerful experts, nor had anyone with formidable soul power appeared.
Thus, in the end, the Heavenly Soul Sect's upper ranks unanimously concluded that the Death Soul Sect's experts were not cultivating according to the Soul-Body Tempering Method. It made sense—the Soul-Body Tempering Method greatly benefited members of the Heavenly Soul Sect, but it was useless to those of the Death Soul Sect.
These people had surely guided the soul power within the Coronation Grounds elsewhere and used it for some other purpose. This only enraged the Heavenly Soul Sect's experts even more. To deal with the Death Soul Sect, and fearing that it might have developed some special methods through that soul power, the Heavenly Soul Sect spent the next two years pretending to know nothing.
Yet in secret, the Heavenly Soul Sect had already ordered a great number of experts to begin cultivating through the Rapid Advancement Method. With a way to convert Mental Power Crystals, they naturally made full use of it. However, these people did not possess Huo Hai's masterful means of utilizing them.
The method Huo Hai had given them had originally been an imperfect fusion method. It could use very few Mental Power Crystals to achieve rapid advancement in the shortest time possible, but because it contained too many impurities, once one reached Seventh-Level Spirit Emperor, further advancement was nearly impossible.
But the Heavenly Soul Sect no longer cared about such things. Without a top-tier secret Sect art, reaching Seventh-Level Spirit Emperor was already immensely powerful. Besides, the current Heavenly Soul Sect was no longer the Primordial Heavenly Soul Sect of ancient times.