Peng Chenglong walked into his room, closed the door behind him, leaned against the door, touched his heart with his right hand, and let out a long breath.

Not like in the past, the occasional glance of Her Royal Highness the princess now made his heartbeat like a wild horse that had broken off, rampage through his chest, and knocked him out of breath and inches.

When Ye Feiyan's smart, cunning, naughty and helpless eyes flashed in front of him, the corners of Peng Chenglong's mouth couldn't help but bend, and she who was gentle, lovely, simple, and kind in his heart suddenly became so vivid, so vivid that he was reluctant to leave her side for a moment.

But thinking of King Yu's eyes that had been looking at him coldly like an ice blade, Peng Chenglong instantly became excited, and the rhythm of his heartbeat slowed down quickly.

Her Royal Highness the Princess is already Princess Yu, how can he forget this fact, but even if Her Royal Highness the Princess is not Princess Yu, for him, it seems that he can only hide it silently in his heart.

Peng Chenglong's heartbeat finally regained calm, and the smile on the corner of his mouth disappeared, but there was a firmness in his eyes that he had never seen before.

Although he can only hide Her Royal Highness the Princess in her heart, she is indeed his eternal Royal Highness the Princess.

Chang Yue put the burden wrapped in the medicine stove on the table, and got Junlan's order to go back to his room to cut the medicinal herbs with Chang Feng.

Jun Lan's face gradually returned to normal after Peng Chenglong left, but his heart was full of thoughts.

Gu Yifeng couldn't wait to unwrap the package, looking at a shining metal box that looked extremely similar to the box, and couldn't connect it with the word alchemy no matter what.

"Little girl, is this really a medicine refining furnace?"

Gu Yifeng stroked every corner of the metal box in front of him with his hand, including the shelves where the charcoal was placed, and the handles on the doors.

"Grandpa Feng, this is the alchemy furnace I use, and the pills that Xiang Gong is taking now are refined here."

"Little girl, are you going to use this medicine furnace to refine medicine tonight?"

Gu Yifeng felt as if his grandfather had taught him to try refining medicine for the first time, and his heart seemed to have thousands of ants crawling around, itching unbearably, and he didn't know where to put his hands.

"Grandpa Feng, the medicinal herbs collected today have not been dried yet, and it is inconvenient to boil a large amount of medicinal soup here, so I don't plan to refine the pill tonight."

Gu Yifeng's eyes were originally starry, and they lost their brilliance in an instant, "Then when are you going to refine the pill?" ”

Looking at Gu Yifeng's disappointed face, Ye Feiyan was a little unbearable, "I originally planned to go to Yundu to find another place to refine the medicine, but by that time, Xianggong had just finished taking this month's medicine, and after determining the effect of the pill I refined on removing the residual harm of the pill, I could take the pill that improved the meridians and dantian." ”

Gu Yifeng's face was completely ashen, "That should be more than ten days later." ”

"However, if Grandpa Feng is in a hurry to try this medicine furnace, why don't we stay here for another day?"

Ye Feiyan had another plan in mind, staying for one more day should be able to analyze the composition of the soul eater earlier.

"Stay for a day?" Gu Yifeng's eyes instantly lit up again, "Then let's stay for a day!" "It's okay to think about that little emperor, and it doesn't matter if it's a day late.

Jun Lan's idea is different, if they arrive in Yundu as soon as possible, then they can return to Jingdu as soon as possible, but Gu Yifeng has already made a decision, Jun Lan can only look at Ye Feiyan who came over and nod slightly.

Ye Feiyan smiled at Junlan, "Since you have decided to stay for a day tomorrow, then let Chang Feng, Lan Jiang take soybeans, Peng Chenglong and others to Qinling Mountain to pick again."

Gather some of the medicinal materials we collected today, and these medicinal materials will be used tomorrow to refine the elixir for Grandpa Feng. ”

"Little girl, the problems in my dantian should be different from those of a silly boy, why do you want to refine the same pill?" Gu Yifeng looked puzzled.

Ye Feiyan smiled and began to continue to pick up medicinal materials, "Grandpa Feng, the ten medicinal materials we collected today are auxiliary medicinal materials, and the ones that Chang Yue and the others bought back are the main medicinal materials, and tomorrow we need Chang Yue to buy some other medicinal materials back, but as long as you change four of these medicinal materials." ”

Gu Yifeng sat down at the table and began to help Ye Feiyan sort the medicinal herbs, but his furrowed brows did not stretch.

"Little girl, you told me that day, the reason why these seemingly ordinary medicinal materials can achieve the effect of improving the meridians and dantian is because you want to extract the elixir from the Flame Grass and the Breeze Grass through your distillation device, can you still use these two medicinal materials when refining the elixir for me?"

"Grandpa Feng, you are always very aware of the effects of Flame Grass and Qingfeng Grass, on the surface, they both have the effect of detoxification and detoxification, which will be of no use to you, so I will replace them with Cui Buckwood and Ling Xiu Grass, and I will also use that distillation device to extract the special ingredients through distillation."

Ye Feiyan paused in her tone, and then continued: "When refining the elixir for you, add the extracted elixir to it when boiling the decoction, so that it can also increase the medicinal effect of other medicinal materials. ”

"Little girl, there is a big difference between the elixir you want to refine for me and the one you give to a silly boy?"

Although Ye Feiyan kept the smile on the corner of her mouth, this question also stumped her.

Integrative medicine was her favorite study when she was a Ph.D., and her Western medicine supervisor was not very optimistic about her, but her TCM supervisor was very supportive.

The two of them are always sneaking around in the laboratory to make various attempts, using chemicals to change and stimulate the traits and potential of Chinese herbal medicines.

"Grandpa Feng, the difference is very complicated, I can only tell you from the efficacy, the pill refined for Xiang Gong not only has the effect of improving and strengthening the meridian dantian, but also has the function of healing, and the pill refined for you is mainly to strengthen the dantian and enhance the toughness of the dantian."

In terms of efficacy alone, Gu Yifeng seemed to understand the meaning of Ye Feiyan's words.

Looking at Ye Feiyan with a look of embarrassment, as if he didn't know how to explain it to him, Gu Yifeng smiled and said, "Little girl, why don't you write out the prescription for refining the pill for me now, let me study and study it, and see if I can see the difference between them?" ”

Ye Feiyan nodded, stopped what she was doing, took out the pen, ink, paper and inkstone used yesterday from the cabinet, and began to write on the square table.

Ye Feiyan wrote two prescriptions respectively, pointed to one of them and said, "Grandpa Feng, look, this one is a prescription for refining pills for Xianggong, let's name it Yutian Pill for the time being." ”

Then he pointed to another prescription, "This one is the prescription for refining the pill for you, we call it Qiangtian Pill, judging from the prescription alone, it is the difference between the first four medicinal materials." ”

Gu Yifeng picked up two prescriptions, "Little girl, apart from these first four medicinal materials, are there any differences?" ”

Ye Feiyan motioned for Gu Yifeng to put the prescription on the table, and then pointed to the eight medicinal materials that needed to be collected below, "When refining the elixir for Xianggong, the elixir extracted from the Flame Grass and Qingfeng Grass can only be added after the medicinal soup of other medicinal materials is boiled, and when refining the elixir for you, the elixir extracted from the emerald buckwheat wood and Ling Xiucao needs to be added when you start to boil the medicinal soup." ”

For Gu Yifeng, who has been fond of medicine since he was a child, this feeling that he can't seem to see the essence makes him scratch his heart and lungs, it seems that he not only has to learn other techniques of controlling the five elements from the little girl, but he also has to learn what kind of special substances are in the potion extracted from the medicinal herbs by the distillation device.

(. = )