Netherworld Crystal Stone?
What is that?
It was the first time Jing Yan heard of this item; he hadn't heard of Netherworld Crystal Stone even when he was in the Chaos World. Moreover, its value was astonishing - one Netherworld Crystal Stone was worth tens of millions, even hundreds of millions of Black Crystal Stones!
Jing Yan's eyes lit up.
The Yellow Spring Cave mentioned by Lord Ying Zhu indeed was a shortcut to resource acquisition; the only downside was that the opening time of the Yellow Spring Cave was unknown, and when it would open next was also uncertain.
