The void is always connected with astronomy.
In the corridor on the fourth floor of the library, there were incredibly luxurious decorative pieces, such as the complex alchemy astronomical telescope, the "Antikythera mechanism" made of pure golden gears, the intricate and artistic "Edmonds planetarium," and some gold-crafted instruments whose functions were obscure.
Many of these are classic astronomical devices still in use today, and their designs have hardly changed over the countless years.
As Su Lun walked down the corridor, he could see the treasures displayed in the glass cabinets that one would feel the urge to pilfer.
