The purification barrier spread roughly two streets away before it stopped expanding. Clearly, this was its limit for now, although perhaps it would expand a little more when neighboring cleansing dew points ertr reactivated. It was the first step in their mission to take back the entirety of Russet Rock City.

Li Luo looked closely at the edge of the purification barrier. Black mist continued to press up against its borders. It not only restricted the light barrier from expanding further, but was also eating away at it.

"Seems like the purification barrier shrinks as time passes... At this rate, the barrier will be negated by the illusion formation before too long," Lu Ming said with concern.

Li Luo nodded. "A most curious illusion indeed. It almost seems alive. We have constructed a cleansed area within it, and now it is trying to remove the foreign object...