Immortal essence,
The energy contained within an immortal stone.
This power was completely different in nature from spiritual energy!
The instant his Spiritual Sense probed inside and tried to refine and absorb it, Zhang Qingyuan felt as though he had fallen into an endless starry sky, where countless points of light glimmered!
He could neither understand it nor perceive it!
Not to mention refining it to enhance his own strength.
Before this,
Zhang Qingyuan had spent a considerable amount of time driving his vast Magic Power, using the Five Elements Power as a foundation to form a Myriad Heavens Furnace.
Within this Five Elements Furnace, there was likely nothing left in this world that could withstand its scorching refining power.
But unfortunately,
This immortal stone came from the Upper Realm,
And it involved the level of immortals.
As a result, even after remaining inside the Five Elements Furnace for half a month, the immortal stone showed not the slightest change on its surface!
There was not even the faintest sign of melting,
Nor was there a single wisp of immortal essence leaking out.
He had failed!
The fruitless refinement made Zhang Qingyuan understand one thing.
Although the immortal essence inside this immortal stone was already nearly exhausted, only enough to power the Divine Guard Puppet for around eight or ten moves,
This thing from the Upper Realm was still beyond a level he could touch at present.
However,
Even so,
Zhang Qingyuan had not abandoned his designs on this immortal stone.
Instead, the fire in his heart burned even more fiercely.
He vaguely had a premonition,
That this immortal stone
Might be the key for him to reach a higher level of power!
"Since Magic Power and spiritual energy cannot stir the immortal essence within the immortal stone, then what