Aside from three bedrooms, the second floor also had a small study room.
Despite the room's small size, there was no shortage of books. Even if one were to skim through each book, it would take more than 24 hours, or even 24 days to go through them all.
Ever since they began searching the room, Professor Cheng had already busted through dozens of books.
The books in the study room were diverse, in Chinese, English, and even in Latin, which they couldn't understand. They could only skim through them roughly.
While they were flipping through books on the second floor, those in the attic were still pondering over the weird nursery rhyme: Summer rain patters loud, the darkness veils where the treasure could be found...
Li Li voiced his weak suggestion, "Could there be a chance it's on the first floor... all the lights are off down there, which fits the 'pitch-dark' environment."
