Wang Chen shared this question with Zhang Hu and Liu Shitou.
After exchanging a glance, Liu Shitou replied with a wry smile, "In my memory, your grandfather's greatest skill was making the fruits from the orchard tastier than those from other families; I've never heard of him knowing medicine."
Zhang Hu pondered for a moment before saying, "But I did hear my dad mention a few times that when your grandfather was young, he worked as a laborer for a landlord, and he was on good terms with an old traditional Chinese doctor from the landlord's household."
"Could it be that the old doctor gave these to my grandfather?" Wang Chen asked.
Zhang Hu laughed and said, "Maybe, when we have some time, we can ask my dad, or inquire with the oldest folks in the village."
Wang Chen nodded, set down the two books, and then picked up the jade pendant again.
