"Grudge soul threads?" Qing Chen's gaze abruptly turned cold.
He had naturally heard of such vile things.
Grudge soul threads could only be refined by having countless mortals or cultivators perish in the utmost agony, their souls torn apart and tormented until they finally condensed into strands of resentful, foul yin energy, producing something as fine as gossamer yet extraordinarily tough.
Every grudge soul thread carried towering resentment and was universally acknowledged in the cultivation world as an evil and inauspicious thing.
They were not merely physical entities, but conglomerations of the resentment of countless wronged souls.
Cultivators unfamiliar with this art who came into contact with them might risk damage to their souls, or even erosion by that resentment, reducing them to walking corpses.
"That damned Cao Banxian!" A chill abruptly rose in Qing Chen's heart!
"That old bastard put on such a sanctimonious front, looking like a respectable merchant. Who would've thought he was such a sinister old wretch, using vicious methods like these behind the scenes! Good thing I'm no greenhorn either, and kept my guard up..."
He inwardly congratulated himself on having Su Zixuan inspect it first.
Otherwise, even if he did not take part in this operation, should he accidentally damage the flag's fabric and suffer a backlash from the grudge soul threads within, the consequences would still be unthinkable.
As for the possibility that Su Zixuan might be injured as a result-Qing Chen did not even furrow his brow.
Better that than taking the risk himself.
What concerned Qing Chen was exactly what this man was plotting, and why breaking a formation required these formation flags containing grudge soul threads.
Was that old bastard really after the cave abode, or was he after lives?
"Zixuan," he said in a low voice, "can you determine