"Void remnants are the by-product of Black Crystal explosions in the Void Land. They carried void energy and were very useful to us, Evil Gods. They could help me quickly recover my origin. He was selling that piece thirty percent cheaper than market price, so it was most likely black-market goods."
"What about the currency here? What did the 50 refer to?"
"Black Crystal." Zane lowered his voice and carefully took out a small piece of black crystal the size of a fingernail. "This."
Fang Heng took the Black Crystal and examined it in his hand.
The crystal was entirely pitch black. Looking closely, he could see faint traces of a dark-blue glow hidden within the crystal.
It was some kind of energy crystal.
Fang Heng released his mental strength to sense it and found that the internal energy density was not high, and the absorption and conversion efficiency were very low.
Simply put, it was not suitable for him to absorb.
