The Guyue Kingdom was a realm from a thousand years ago.
A thousand years ago, this place hadn't become a full desert yet; there were grasslands, rivers, markets, a period of prosperity. Historically known as the Guyue Wasteland.
The Guyue Kingdom was established here, becoming a wealthy small country in the desert.
With changes in Earth's climate, the Guyue Kingdom suddenly vanished overnight.
For years, scientists and archaeologists have tirelessly studied, eventually finding remnants and ruins in the desert, proving these were ancient buildings of the Guyue Kingdom.
As for how the Guyue Kingdom disappeared initially, no one can say for certain even today.
Perhaps the overnight disappearance is just an exaggeration. Unless there's a massive tectonic shift, turning fields into seas, how could a country disappear overnight?
