Whooo!
A shrill howl, like the wail of ghosts and with an exceedingly bizarre frequency, suddenly burst from the mouth of Yan Chou, the eldest Soul-Howling Ghost.
As the ghostly howl rose, ring after ring of visible black ripples spread rapidly in every direction. Looking closely, one would find ghostly shadows flickering within those black ripples—who knew how many living souls had been refined within them.
The moment the ghostly howl sounded, the first ones unable to bear it were neither Ye Zhen nor the Crimson Fire Branch Hall martial artists within the protective formation below. Instead, it was the Palace Opening Realm Kings and peak Pulse Forging Realm martial artists hiding throughout the surrounding sky to watch the battle.
The martial artists below were far away, and the protective formation itself could block sound to a certain degree. Thus, those hidden around the area and spying on the battle were the first to cry out—they had been struck by the ghostly howl first.
This ghostly howl attack was called Myriad Ghosts Soul Seeking, Yan Chou's famed ultimate technique. It specifically attacked the soul, and he had used a secret art to refine a great number of living souls. It was incomparably vicious; even Palace Opening Realm Kings whose cultivation exceeded theirs would not dare provoke them lightly!
"Bastard, it's an indiscriminate attack! Move!"
"Ah, my head—my head hurts so much..."
The instant the ghostly howl rang out, several Palace Opening Realm Kings turned pale. Amid their shocked cries, they flashed out of the void and retreated rapidly. Meanwhile, a Pulse Forging Realm martial artist standing too close had already begun screaming miserably!
Yet just as that Pulse Forging Realm martial artist screamed aloud, convinced he was about to die, the sobbing ghostly howl abruptly cut off.
The expression of