C27 Empty Space(1)

Ling Feng fell into deep thought. The rune seemed very familiar, but he could not remember where he had seen it before. At this moment, he suddenly felt a heat in his chest. He was shocked. "A diamond-shaped stone!"

"Yes, these runes are on the diamond stone!"

He quietly fished out the diamond stone in front of his chest. The stone was emitting a faint milky white light