C600 Pure Yang Heavenly Sword

Walking down the tunnel, a gust of cold wind blew over. The dark tunnel was flashing with green light.

Ten minutes later.

Zhao Xin followed the tunnel and walked out of the tunnel. He arrived at a huge karst cave. The size of the karst cave was shocking. The drowsy environment did not affect Zhao Xin's vision at all.

The karst cave did not look like it was naturally man-made