At this moment, Lin Xuan knew very well that finding any trace of the hidden existence would be extremely difficult.
But Lin Xuan did not give up. He kept searching tirelessly. After an unknown amount of time, he finally saw another wisp of black mist in the black world.
This wisp of black mist was incredibly faint, looking as though it might disappear at any moment.
When Lin Xuan's gaze fell upon the black mist, a faint smile appeared on his face.
"Finally, I found it."
Lin Xuan let out a long breath, then fixed his gaze on that wisp of black mist. After finding it, he did not hesitate at all and directly merged his soul into the black mist once again.
But this time, an accident occurred.
When Lin Xuan merged his soul into the black mist, he felt as though his soul were being pierced by needles. The pain was excruciating.
The pain was utterly terrifying.
Horror appeared on Lin Xuan's face. The pain was simply too obvious—far more intense than before.
For a moment, even Lin Xuan found it difficult to endure.
"What the hell is this power?"
Cold sweat broke out across Lin Xuan's forehead.
At this moment, Lin Xuan's soul seemed to be in hell, suffering every moment without respite.
Lin Xuan's expression was extremely grim.
He had not felt such pain in a very long time. In fact, this was probably the most painful experience he had ever endured.
For a moment, even Lin Xuan could barely withstand it.
Terrible agony kept assaulting Lin Xuan's soul from every direction, making it feel as though his soul were about to explode.
The feeling was unbearable.
If Lin Xuan's willpower had not been strong enough, the pain would have driven him insane long ago.
Even