C934 Visiting

Unless someone from the Dark Group betrayed their solution, even if they read this letter a hundred or a thousand times, they still wouldn't be able to figure out the hidden secrets behind it.

Although Bai Yutang didn't know how to read this letter, she could roughly guess the reason why Zheng Yu was so calm. Bai Yutang smiled as she glanced at the smiling shopkeeper.

After writing the letter