Empress' Castle, Star Dragon city.
On a floating island in the middle of the Star Dragon city, there stood a high and mighty gold and silver castle. From the ground below, it looked as if it would pierce the sky. The castle was very big and the island itself was at a very high altitude. The floating island covered an area of a million km² in the sky and the castle occupied half of it.
This castle was the resting place of the Star Dragon or more popularly, the Dragon Empress, Mayzin.
Inside the castle was a big treasury which had many gold coins, ornaments, gemstones, amethysts, high ranking magic artifacts and many more such expensive treasures. They were not placed in an organised way in the treasury and it piled up to become many treasure mountains. The biggest mountain was more than a kilometer long and it was around 700 meters wide. There were many small mountains surrounding it.