Gu Guotai thought for a moment, then shook his head, "I have also heard about this matter, but it has been at least five or six years since Old Madam Lu first fell ill. How old was Qiao Yin back then? She shouldn't have had the ability."
Gu Chengsong's face was full of questions, "Then who cured Old Madam Lu's illness?"
"Qiao Yin was young but had exceptional medical skills, just like her mother Shen Tang. Both of them said their skills were a family legacy. It's clear they were taught by a highly skilled elder. If I remember correctly, Qiao Yin once said that her medical skills were all taught by her grandmother."
"Could it be that it was Qiao Yin's grandmother who cured Old Madam Lu's illness?"
"That must be the case."
Gu Guotai was filled with annoyance as he cast a glance at Hou Jinhua, still aggrieved, irritation appearing in his eyes.