Xuan's words—"All of them will do, but they are not enough"—made the atmosphere, which had only just eased a little, tense once more.
The four powerhouses all looked displeased. The items they had brought out were their most treasured possessions, yet they were being told they were "not enough"?
The Demon Saint had the fiercest temper and roared, "Not enough? Do you know that this Golden Crow Feather was bestowed by my clan's crown prince? It contains a trace of the sun's origin!"
The Demon Lord added darkly, "The Soul Devouring Pearl has devoured countless living souls. Its energy is boundless!"
Although the Azure Dragon and the Sword Immortal said nothing, dissatisfaction showed in their eyes as well.
Faced with their doubts, Xuan's expression did not change. He merely raised a hand and pointed at the enormous Pool of Sacrifice atop the altar. His cool voice flowed like an icy spring. "This pool is called 'Returning to Origin.' What it requires is not energy of a single attribute, but... chaos."
"Chaos?" Everyone was stunned.
"That's right." Xuan continued, "Your treasures may contain pure energy, but their attributes are too extreme. The Golden Crow Feather is purely yang, the Profound Nether Pearl purely yin, the Soul Devouring Pearl specializes in souls, and sword blood specializes in slaughter. If the power of such single attributes is poured into it, not only will it fail to activate the altar, it may trigger the backlash of the Chaos Laws lingering in the pool, causing the altar to collapse and space itself to be annihilated."
His words were like a bucket of cold water over their heads, instantly sobering the four powerhouses. They carefully sensed the Pool of Sacrifice. Sure enough, an ancient aura that seemed to embrace all things yet remained chaotic and disorderly