Tianyun Mountain.
1,000 meters to the west.
Originally, this was a very lively and huge mine.
It was one of the three major mining areas in Fallen Star Lake.
What they harvested were all extremely hard amethyst profound iron.
Now, after hundreds of years of harvesting, the amethyst meteoric iron on the surface was almost exhausted.
All of them began to dig deeper into the Tianyun Mountain.
There were many mines scattered around.
If one were to look down from the sky, they would look like a dense beehive.
And today.
Near a mine on the left side of the beehive.
A dense horde of demons had gathered.
Many demon hordes were arranged in a fan-shaped formation, sitting on the huge stone steps that led up layer by layer.
At the center of the fan was a huge arena that was shining with a mysterious purple light.
