In the void, a mass of black qi first churned into existence out of thin air. Then, as it roiled, it rapidly expanded. Within a few breaths, the surging black qi had spread across an area a thousand meters wide.
After expanding to a thousand meters, the surging black qi took on a thread of blood-red. Gradually, as that roiling aura expanded further and further, it grew so vast that the naked eye could no longer see its boundaries.
Its size was absolutely no less than several tens of thousands of miles.
The expansion of that roiling aura continued for a full quarter-hour. When it had completely transformed into dense, dark-red, blood-colored Demonic Energy, the phantom of a palace suddenly appeared within the blood-red demonic qi, flickering in and out of sight.
At that very instant, the blood-red demonic qi ceased its eruption-like churning.
But at that same instant, the Demon Soul Hall hanging from Ye Zhen's chest, shrunk tens of thousands of times over, suddenly became scorching hot.
The heat was so intense that Ye Zhen let out a pained grunt.
After that grunt, Ye Zhen immediately realized something. Instinctively, Ye Zhen's Spiritual Sense sank into the Demon Soul Hall hanging before his chest.
Within the Demon Soul Hall, which had always remained dormant, a thick layer of blood-colored Demonic Energy now permeated the place. In particular, the Demonic Spirit Ghosts Ye Zhen had sealed inside one of the great halls were roaring one after another, exceptionally active.
What surprised Ye Zhen even more was that the Battle Soul Blood Banner in the central hall of the Demon Soul Hall was also radiating bright blood-colored light. It flashed again and again, as though responding to something.
When Ye Zhen's Spiritual Sense entered the Battle Soul Blood Banner, an indescribable