Outside the formation, Blackstone Master frowned.
"What a powerful divine artifact!"
He had not expected the fortuitous opportunity protecting Jiang Feng to be so formidable.
With his discernment, how could he fail to see that this was not a treasure of the Immortal Sacred Realm?
Judging from its power, it should be something from the Divine Realm.
Beside him, Black Bird's heart tightened. Then, in a somewhat mocking tone, he asked, "What, even you can't shake it?"
Blackstone Master gave a cold laugh. "Hmph, how could that be?"
"It will merely take some time."
Blackstone Master naturally understood that once spiritual artifacts like this from the Divine Realm fell into the lower realm, they lost their source of power.
In other words, every bit of their power used was one bit less.
Once their power was exhausted, such spiritual artifacts would fall into slumber. They would not exactly be at others' mercy, but it would be close enough.
His own power, however, was sustained by the Immortal Domain's origin and could be said to flow without end.
Using his inexhaustible power to drain this artifact's reserves would not be difficult.
Black Bird asked with concern, "How long?"
What he truly cared about, of course, was when he could obtain Jiang Feng's divine soul.
After making an estimate, Blackstone Master said, "One thousand years."
Black Bird breathed a sigh of relief. One thousand years was exceedingly brief to them.
However, throughout these thousand years, Blackstone Master did not dare relax in the slightest.
His power was already weaker than that divine artifact's. Only with the aid of the formation could he continuously deplete the artifact's power while ensuring his own safety.
Now, lingering fear still stirred in his heart. Fortunately, he had not rashly attacked Jiang Feng directly just now, but