C616 Rapid Progress in Alchemy

A joyful expression emerged on Chu Kuangsheng's face. He focused his mind and approached the subtle fluctuation.

Weng!

Just as he was about to approach it, his heart trembled. Immediately after, a tiny speck of light that was as tiny as a speck of dust appeared in front of his mind.

The glow on the surface of the speck of light was flickering