While the population flow was huge, it also brought about the development of trade.
At the top of the city wall, a soldier on duty looked into the distance. The barren land stretched to the end of his vision.
Suddenly, he saw the ground in the distance ripple like a wave, as if it had come alive.
He suspected that there was something wrong with his eyes. He rubbed his eyes hard and looked into the distance again. This time, there was no movement.
Suddenly, the ground moved again. This time, it was very close to the city wall, so it could be seen very clearly.
"Hey, there's something underground."
He subconsciously pressed on the spear and turned to his colleagues.
Hearing this, his colleague looked into the distance, but he didn't see anything. He complained, "
"We didn't even see a ghost, don't be so surprised."
