At this moment,
Wang Wu gained a more comprehensive understanding of the Vermilion Bird Formation Soul's power. Without doing anything at all, nothing that stirred within the entire Great Desolation Sin Prison Tower could escape his notice.
Unfortunately, such a powerful method was likely only effective within a certain range around the Great Desolation Sin Prison Tower. Beyond that distance, it would fail, much like the Hidden Origin Bell. Otherwise, if one could carry around an eternally fixed immortal artifact, wouldn't they be invincible throughout the world?
With that thought, Wang Wu separated a wisp of Divine Sense and attached it to the Vermilion Bird Formation Soul. In a single thought, he arrived at Qing Xue's side. Just as he was about to give her a surprise, he suddenly spotted an inconspicuous strand of gray qi coiling around one of Qing Xue's hairs.
After freezing for a moment, Wang Wu did not act rashly and merely watched from afar.
Qing Xue seemed completely unaware of it. Instead, she politely exchanged a few words with one of the prison guards stationed there before heading straight for the place she had agreed to meet Wang Wu. Yet clearly, there was not the slightest trace of anything there.
Qing Xue did not linger either. She passed through in a hurry and left in a hurry, as though she had merely come for a stroll.
After she left the Great Desolation Sin Prison Tower, Wang Wu waited patiently for a while longer. Only then did he see that strand of gray qi gradually take shape at the meeting place, eventually turning into a thumb-length little snake.
It looked perfectly ordinary, yet at that instant, Wang Wu's true body had a sudden premonition. A sense of danger surged forth.
What was going on?
What was