Nan Yu hadn't slept well that night, always waking suddenly after less than two hours of sleep.
After it happened several times, she simply stopped trying to sleep, got up from the bed, sat on the balcony, and flipped through the medical book her master had left her.
The medical book was worn and the pages were yellowed, filled with black ink scribbles; it was evident Nan Yu had read through it many times and made numerous notes.
In fact, she had long known the contents of the book by heart.
But when she felt uneasy, she would always take it out to read again, as if her master was still by her side, which could calm her down.
Nan Yu finished the last page, closed the medical book, and placed it together with the silver needle her master had left her.
Turning around, she saw Xiao Ba by the bed, staring at her movements with its round black eyes, not looking away.
