It's Hei Jiang
The dark passage was like a huge mouth of the abyss, and the three of them were falling rapidly.
This process had been going on for some time.
The depth of the cave was far beyond Kant's imagination.
As they continued to venture deeper, a large number of forks and branches appeared. However, they could still determine the origin of the nameless monster from its crawling tracks. Kant kept making marks along the way, and the air became cold and gloomy. Occasionally, they would pass through dark and deep passages, but the challenges of the environment were nothing.
There were a large number of concave surfaces and small waterfalls, and the path leading down was winding. It could be judged that this was an extremely deep natural cave. It was strange and jagged, and the scenery was strange and endless.