Demon Skeleton Sword Ghost! Instant Kill!

The Hidden Mysterious Realm, the core region.

After rushing out of the cave, they were not far from the core region.

Wang Ye stood on Xiao Jiu's back and looked at the distant dark sky.

The biggest difference between the core and outer regions was that the sky was even gloomier in the former.

In the distance, there was even a huge spiral-like vortex that was sweeping up the surrounding rolling dark clouds. It was as if an apocalyptic boss was about to appear. The occasional crackling lightning followed the deep vortex like a protective escort. The result of the vortex's travels was that the wind in the core region was like thunder, and the temperature dropped rapidly.

In fact, the visibility was so low that one had to light torches to even see.

Looking down from the sky, the region below was flickering with sparks like stars. It was likely that a beastmaster had entered the core region to explore.