Qin Yuanfeng hurriedly welcomed the three medical sages into the house, a look of joyful delight on his face.
"Grandfather, Grandpa, Old Gu, you're finally back. We were worried you might have lost track of time," Qin Yuanfeng said with a smile.
Li Mubai laughed heartily and said, "Yuanfeng, the jade slip you brought back is simply wondrous. Once we started studying it, we completely lost track of time."
Chapter 154