The great desert of Chali is more a region then a settlement. It starts near the rock archipelago and spreads all the way to the Great plain. Sand dunes are constantly shifting. A huge sand “mountain” can crumble in a week. And a vast valley of bedrock can open in a few days. Rubian geologists are still trying to understand this phenomena, but no one answer is for sure. This was the reason that the ancient ex-capital city of Ruby was lost. This buried city is the holy grail for any local archaeologist.