The Great Desolate Ancient Mine was said to have been a massive mineral vein used by ancient lifeforms to extract ores 365 million epochs ago.
Now, this mineral vein had long since been abandoned. Drifting through the universe, it had transformed under the dense spiritual power of the Ancient Domain into a natural barrier stretching across 9,000 light-years.
Tens of thousands of enormous fortresses had been built atop the Great Desolate Ancient Mine. These fortresses had existed for an extremely long time; some had been completely weathered and rendered useless, while others had been rebuilt and were still in use to this day.
This was precisely the border between Beidou Nation and Immortal Queen Nation. It stretched for 6,500 light-years, with its two most winding ends plunging deeply into the Space-Time Vortex. Even those of Desolate Grade could not easily enter.
The central section of the ancient mine's mountain range was a high-incidence zone for border conflicts, and also the destination of Su Xiaobai and the others.
As the hazy spatial-temporal light mist before them dispersed, Su Xiaobai's field of vision abruptly widened. Golden Star Holy Son casually stepped down through the air, landing with an air of composure on the mountain of the Great Desolate Ancient Mine. He looked dignified and elegant—yet in the next moment, he tripped and fell flat on his face.
King Liming laughed. "I forgot to remind you. The Great Desolate Ancient Mine has suffered severe wind erosion and has been neglected for a long time. Most of its surfaces are in a state where they could collapse at any moment. This super mineral vein, stretching for several thousand light-years, is less a mountain than a gigantic piece of cosmic cotton. But crossing this piece of cotton comes at the price of blood!"
No wonder.