C346 Yellow halo crystal

It was a gem that looked like a crystal ball. Cheng Fei studied the gem and realised that there was a faint yellow halo around the center of the gem.

Cheng Fei had never seen such a strange gem before, but seeing Xiao Hei Zi's eager expression, he said: "If you want it, then take it as the reward for this help."

Cheng Fei handed the gem over to Xiao Hei Zi, at this moment