The Yin Spirit Evil Energy reacted to the Nine Heavens Sword Intent as though it had seen a ghost. This proved just how terrifying the Nine Heavens Emperor had been.
Sikong Jing spoke softly. "The living Nine Heavens Emperor must have far surpassed the Five Heavenly Emperors."
Even the dead Nine Heavens Emperor had been able to cleave his way to Green Leaf Palace with a single sword strike. Of course, he had been vastly stronger.
"Perhaps the Nine Heavens Emperor once entered the Burial Emperor Tomb and left some terrifying shadow upon the Yin Spirit Evil Energy. Or perhaps the Nine Heavens Emperor and the bones of his Blood Devour Magic Beast are buried deep within the Burial Emperor Tomb."
"In the past, the Yin Spirit Evil Energy of the Burial Emperor Tomb was all concentrated at its very center and rarely appeared."
"Yet now, great quantities of it have poured out. Perhaps the Nine Heavens Emperor's remains, or some force of his, drove them out."
"Perhaps the Burial Emperor Tomb's invasion of worlds such as the Vast Sea is related to the Nine Heavens Emperor."
As he spoke softly, Sikong Jing immediately shook his head. These were all baseless speculations. It was only because he desperately wanted to find the remains of the Nine Heavens Emperor and his Blood Devour Magic Beast that he had made such guesses...
"In any case, Father, since the Yin Spirit Evil Energy fears the Nine Heavens Sword Intent, return to the Desolate Sea Forbidden Land at once."
"Begin teaching the people of the Desolate Sea Forbidden Land the Nine Heavens Sword Dao."
"That way, we can be prepared for any eventuality, in case the Desolate Sea Forbidden Land is invaded by the Yin Spirit Evil Energy in the future."
Sikong Ding nodded