C335 Underground military city

Jiang Chu thought about it carefully, and felt that this depth probably exceeded the level of the Bianzhou of the Ming Dynasty. It should still be below the surface.

Based on the thickness of the bluestone, it was very likely that it was a man-made underground space.

Jiang Chu was a bold man, without much thought, he took out his White Light Sword and stabbed it into the green stone