Ling Zhao couldn't stop his face from grinning ear to ear while the Spirit Stone on his hand emit vibrant cerulean blue from it.
The shape was oval, polished smooth surface gave them a hint that the Spirit Stone was indeed treasured by its previous owners as a invaluable jewelry.
However, the Qi energy that stored inside the stone was still intact, no trace of being used or absorbed by someone. Too bad, the people from this era were practically illiterate about cultivation. Judging from their weaponry during the battle against the demon army, Ling Zhao could tell their technology also was still medieval at best. Had them acknowledge how to use the Spirit Stone, their civilization must have been advanced by leap and bound.
