In a short period of time, Tang Zhen had already figured out the situation.
The Oasis under his feet used to be very large and many people lived there.
The water and grass were abundant, and herds of cattle and sheep were formed.
The people of oasis lived and reproduced here, providing help to travelers in the desert and earning the wealth and living supplies they needed.
However, for some unknown reason, the Oasis shrank rapidly, and the environment became worse.
The caravans that came and went here gradually changed their routes and rarely came to this place.
The people who originally lived here were forced to move out in order to survive, and the number of residents who stayed was getting smaller and smaller.
Only a small number of people remained in the Oasis and continued to persevere.
They didn't leave because they still had hope.
