The whole family traveled through time and became doctors, raised children and farmed in ancient tim

Xie Wanxing nodded and said, "Master, it's like this. A while ago, my father bought a watermelon. As you know, watermelons are rare here and quite expensive. Coincidentally, I came across this dialysis frosting method in an old medical book. However, the book said that this method was originally used to make poison."

"Poison maker..." Doctor Sun's hand holding the teacup trembled when he heard this, and the tea almost spilled out. He widened his eyes and almost blurted out the word "traitor".

Xie Wanxing noticed her master's gaze and quickly explained, "Master, don't worry. This isn't poisonous. I've tasted it, so don't worry. I was thinking that watermelon is cooling and has the ability to clear away heat. Perhaps this osmotic frosting method could better utilize its cooling properties and make it into a good medicine for treating illnesses."

Doctor Sun hadn't expected this watermelon frost to have such a thing. He frowned slightly, his eyes filled with reproach and worry. He raised his voice and said, "You dare to try it first? You are so audacious! How can you try this method of making poison casually? If something goes wrong, will you still be alive?"

Xie Wanxing lowered his head and whispered, "Master, I know I was wrong. I will pay more attention next time."

Next time I will be sure to never tell you that this is a recipe for making poison.

She raised her head slightly and stole a glance at her master. Seeing that Doctor Sun's face was still gloomy, she quickly lowered her head and continued, "I was also impulsive at the time, but fortunately this attempt went smoothly and I made this watermelon frost. You just tried it, and it is indeed effective for conditions like mouth ulcers."

"You just said your father has a solution? What is it?"

"Well, my dad got all the watermelon seeds out and wanted to see if he could grow them. I have two great gardeners at home who are quite good at this. They like to study various skills and have some experience in planting. My dad wanted to see if he could grow watermelons himself."

Doctor Sun shook his head, clearly not optimistic. "Watermelons are not easy to grow. Many imperial merchants have invested far more than you, and the quality of the watermelons they grow is still unsatisfactory. If we want to be able to mass-produce medicine to benefit the people, I'm afraid we have to keep the cost of watermelons extremely low."

Xie Wanxing lowered her head slightly, her eyes flickering. Of course, she couldn't tell her master the truth! The watermelon seeds produced from the black soil of the space were of such excellent quality that she had never tasted such good ones even in modern times.

This ancient tribute is certainly incomparable.

When the fruit is really grown, we will not be selling watermelons, but gold.

However, she also knew that such a highly profitable business was doomed to fail to last long. After all, she couldn't go door to door to collect watermelon seeds. Watermelon would gradually become more popular and would no longer be a rarity.

Her goal is not limited to the immediate benefits. She wants to mass-produce watermelon frost and push it to a wider market to benefit the people. Of course, watermelon frost is just a minor medicine. If there is an opportunity in the future, she hopes to promote more medicines.

After finishing the story about watermelon frost, Doctor Sun frowned slightly, as if he had something difficult to say. He coughed uncomfortably and asked, "Axing, your teacher's birthday is coming soon, right?"

Xie Wanxing exclaimed in her heart, beaming with joy. She keenly sensed that there seemed to be a scent of gossip spreading in the air.

She asked tentatively, "Yes, my family is planning to hold a birthday party for our teacher. Master, would you like to come?"

"Who's going..." Doctor Sun looked around and asked casually, his eyes wandering around the room.

Xie Wanxing was secretly delighted, and felt that there was something fishy going on. However, he still had a sweet smile on his face and said calmly, "It's not decided yet. I need to ask the teacher about this. If you want to go to me..."

"Little girl! Who wants to go?" Doctor Sun pretended to be angry, but there was a hint of unnaturalness on his face.

Outside, Shopkeeper Qin suddenly knocked on the door: "Doctor Sun, there's a letter for you!"

"Oh, okay, just bring it in." Doctor Sun responded and looked towards the door.

Shopkeeper Qin pushed open the door and walked in briskly, holding two letters in his hands. He placed them on Doctor Sun's desk: "Doctor Sun, someone just delivered two letters outside, saying they are for you."

"Okay, thank you." Doctor Sun's eyes fell on the envelope and he muttered, "Zhao Wenli?"

"Then I'll go out first." Shopkeeper Qin turned around and went out, closing the door gently.

The room fell silent. Doctor Sun lowered his head and looked at the letter in his hand. The familiar handwriting on the cover was exactly that of Zhao Wenli. It was definitely Mr. Zhao. Doctor Sun directly opened the outer envelope.

The touch was a little strange, and he frowned slightly, and found that there was an envelope inside, with "Xie Wanxing's personal letter" written neatly on it.

"Axing, why is this for you?" Doctor Sun was a little surprised. He didn't expect that Xie Wanxing's letter would be sent to him.

"Ah? Grandpa Zhao, for me?"

Doctor Sun handed over the letter with Xie Wanxing's name on it and said, "It says it's for you. It's been sent to me, but this isn't Old Man Zhao's handwriting."

Xie Wanxing also took the letter with a look of shock. She looked at the envelope over and over again, and really couldn't think of who else would send her a letter.

This has to do with Mr. Zhao, and he also knows about her current situation.

She opened the envelope with full of doubts, took out the letter and turned to the last page anxiously. Her eyes fell directly on the name on the letter - Chen Zhifei.

When she saw the name, she was slightly startled. It turned out to be her cousin.

She began to read the letter again, silently reciting in her mind: "Cousin Ah Xing, I am glad to receive your letter. I am relieved to learn that you, Uncle Xie, and Auntie have entered Shuwei Village.

Now that we've arrived at Shuwei Village, I'm sure you've already guessed my identity. I'm indeed the Crown Prince of Chengling, and my real name is Chen Zhifei..."

Chen Zhifei briefly described the situation in the letter. Due to some unspeakable reasons, Miaozhou and Yongzhou could not be captured for a long time and were still occupied by the Huns. The court's food and grass could not sustain them for too long. The army could only leave a part of itself to garrison in Lanzhou. He would stay in Lanzhou with his father, and they probably would not see each other for a short time.

Seeing this, Xie Wanxing sighed softly, her eyes filled with worry. She knew the cruelty and difficulty of war. The current plight of Miaozhou and Yongzhou, as well as the shortage of food and grass at the imperial court, made the situation extremely serious.

As the prince of Chengling, Chen Zhifei must shoulder great responsibilities.

Xie Wanxing finished reading the letter and sighed softly. Chen Zhifei must have written this letter some time ago. He must have found out about his family's relationship with Old Master Zhao, so he sent it to him.