Old Man Yao glanced at the small bottle, opened it, and a rich medicinal fragrance instantly filled the Ruyi Space. He took a deep breath, then closed the lid. "It seems to contain snow lotus."
Zhu Yanyi smiled. "Not just snow lotus. It also has snow ginseng, regular ginseng, rhino horn, purple lingzhi, snow mushroom, and hundreds of other herbs, all at least a hundred years old. I used special methods to extract their essence. These three small bottles are the result. This one is for you, Grandpa Yao. Use it only in emergencies. One drop is enough for one person. I already dissolved the drop for Old Madam Ouyang into a bottle of water. I will dilute it again when making the medicinal meal. One drop lasts her a month. This way, the effect is good, but it won’t look too shocking."
Old Man Yao took the small porcelain bottle without hesitation. she did not ask how she made it. Some of her techniques had already surpassed her. Just the needle technique she used on Old Madam Ouyang earlier was better than her. "Tomorrow, take your senior brother with you. Let her watch how you use the needles. It will help her understand and master the golden needles sooner."
"Okay," Zhu Yanyi nodded and agreed.
The next day, after starting work, Zhu Yanyi told Old Man Yao and went with Gu Jingtian to inspect the wards. They prepared for the upcoming surgeries. Old Madam Ouyang’s parasite removal surgery was scheduled for tomorrow, and Elder Du’s shrapnel removal was the day after. These two days would be very busy. During the day, Zhu Yanyi, Old Man Yao, and Gu Jingtian discussed the surgical procedures. Zhu Yanyi also explained the theory and techniques of the Withered Wood Revival Needle method to Gu Jingtian. At night, Zhu Yanyi entered the Ruyi Space to organize the herbs and prepare emergency medicines for the surgeries.
After finishing, she planned to read some books. She had read many recently but hadn’t fully digested them, especially the Nine Needles of Yanluo and the Soul Return Needle method. She felt stuck, as if she had hit a bottleneck. However, she was not anxious. After all, she was only eleven years old. Perhaps she lacked enough experience to break through and gain insight. She decided to read other books to relax, hoping to find new ideas. So, she picked up a book at random.
She didn’t even look at the title. She just opened it and read for a while. Then, she froze. She sat up straight to check the cover. The title was Refinement Technique. It described how to extract essence from herbs, not just plant-based ones, but also animal-based ones, using special methods. This extraction used the power of Wood. Zhu Yanyi did not forget she had the Wood talent. She always knew her Wood talent allowed her to connect with plants and clearly see the true condition of patients. But she never imagined that her Wood talent had another unknown function: precisely extracting the essence of herbs.
Although Zhu Yanyi had used the scent of herbs to hide the Medicine Spring and claimed she could extract herbs, it was just a cover. She never thought she could really do it. The book explained clearly that the purity reached 99.99%, which was practically 100%. If an herb could be extracted this way, its efficacy was undeniable. Most importantly, herbs extracted using the Wood talent contained a mysterious vitality. This vitality came from the plants or animals themselves—the inherent life force of the herb. Integrating this life force into the medicinal effect made the extracted essence an unimaginable treasure.