"It must be the Sun Spring?!" Lin Xin's brow furrowed instantly.
"Exactly," Guan Mingyue said with a smile. "Moreover, the Sun Spring also has different levels. Generally, they are divided into four grades: one-eye, two-eye, three-eye, and finally, the source of all Sun Springs—the Nether River."
"The Nether River?!" Lin Xin was shocked. The Sun Spring was apparently related to Yang energy, so how did it connect to the Nether River?
And what was the relationship or difference between this Nether River and the one from the mythologies that had long circulated on Earth in his previous life?
There was also what the Red Leaf Sword Master had mentioned before—the terms "Youfu" and "Yinfu"—which were actually collectively known as the Underworld.
The Underworld... the Nether River...
Vaguely, he felt that there must be some mysterious connection between them.
Guan Mingyue, however, did not concern herself with the turmoil in his heart but continued.