C1481 Traces of holy thunder

"There is an ancient city in the Great Maha desert. It is not an ancient city built by us humans, nor is it an ancient city built by the Ahimis or by the blue moon man. It's huge, and even an ordinary house is bigger than a building we built. "

Xia Lei said excitedly: "Giant city? Could it be that the fragment is inside the ancient city? "

"I don't know