C335 Eight Desolation Heart Refining.

Yuh Han's expression was solemn, and he did not dare to be careless.

The danger of tempering the Primordial Spirit was a hundred times more dangerous than simply increasing one's cultivation. If he was not careful, he would be annihilated.

Especially at this moment, he did not know what kind of terrifying danger was hidden under the Essence Transforming Pool.

However