The book didn't mention anything about it either.
Tang Xian thought it might be worth checking out the metro station; perhaps, there could be some clues found there.
Although the city had died, it seemed that fresh worlds always had something interesting to discover.
...
...
Department stores, Toy City.
Tang Feiji precisely located the Rubik's cube stall.
He really went out of his way to get the treasure.
Aside from Rubik's cubes, there were also some metal music boxes on the display shelves.
The operating principle was actually spring-driven; by twisting the music box in different ways, the trajectory of the spring's rotation would change, and so would the music it played.
Although the principle was simple and ancient, the benefit was that children could easily play with it without needing a power source.
As early as 1950, this type of wind-up box had become widespread in Hong Kong.
The music box was metal and appeared to be somewhat rusty.
