Infrasound!
Zhou Yuanjue understood instantly when he saw Wells's neck bulge and vibrate intensely in small, rapid movements.
Infrasound has incredible penetrative power. When its frequency matches the subtle vibrations of human organs, it creates a resonance phenomenon, causing immense damage to the internal organs.
He had heard that in ancient Donghua Country, certain supreme Martial Dao techniques, when practiced to the extreme, could emit faint infrasound. In a duel, this could damage an opponent's organs and have a massive impact on their bodily functions.
However, those Martial Dao techniques shouldn't have had such a terrifying range or duration. It felt as if the man before him had grown an organ specifically for emitting infrasound.
Although the Martial Dao could alter the body's tissue structure to some degree through training and Secret Techniques, he had never seen such an exaggerated case.
Clearly, this was no longer purely the Martial Dao.
