"A stone?"

Cheng Guang nodded, and said with a serious expression, "According to the records pa.s.sed down from our ancestors, the most indispensable thing to make the Nine Revolutions Life Continuing Ointment is a stone called the Scarlet Flame Rock. When you make the medicine, you must put the Scarlet Flame Rock in a medicine jar and cook it with the herbs, otherwise not only will the ointment not cure the disease, but it will also cause the skin to become festering and other diseases.

Cheng Guang smiled bitterly and shook his head. "Scarlet Flame Rocks are extremely rare. Our ancestors inadvertently acquired a piece of it. After we lost track of our whereabouts, our Cheng family never made the Nine Revolutions Life Continuing Ointment again."

What the heck should we do?

Qin Hai was a little dumbfounded. According to Cheng Guang, if there was no Scarlet Flame Rock, even if there was a complete formula, it would be useless. Not only that, the ointment they made was also poison.

Professor Mo now had roughly 60% of the formula. According to Cheng Guang's explanation, it was probably useless. Let alone the 10% effectiveness of the Nine Revolutions Life Continuing Ointment, perhaps it would even produce poison in the end.

Qin Hai was stunned for a moment before he continued to ask, "Uncle Cheng, what exactly does this Scarlet Flame Stone look like? Have you seen it before?"

Cheng Guang shook his head, "I have not seen it either, but according to the records pa.s.sed down from the ancestors, I have been researching this kind of stone for many years. I have gone to the Geological University countless times, looked up a lot of information, and also asked a lot of experts. In the end, several experts agreed that this kind of Scarlet Flame Stone is actually a kind of ruby."

Qin Hai's eyes lit up, "It's really a ruby?"

"Could it be that those experts were mistaken?" Qin Hai said in disappointment.

Cheng Xi interrupted him and asked, "Does every ruby mine have this kind of red jade?"

"No, the conditions for the red jade to be produced are very harsh. It can only be produced under high temperature so even if we find the ruby mine, we may not be able to find it."

"Uncle Cheng, please don't say that. It's already difficult for you to tell me this!" Qin Hai hurriedly said.

Cheng Guang nodded, then suddenly stood up and returned to his bedroom. Not long later, he brought a small white porcelain bottle back to the living room.

"Little Qin, this is the remaining Nine Revolutions Life Continuing Ointment. It's useless for me to keep it, take it."

"You can't do that!" Qin Hai quickly declined. This was his last bottle of Nine Revolving Life Continuing Ointment. Not only was it valuable, it was also the Cheng family's family heirloom. How could he have the face to steal another's love?

Seeing that Qin Hai was adamant, Cheng Guang could only take back the Nine Revolutions Life Continuing Ointment.

Professor Mo was still busy in the laboratory. When he saw Qin Hai, he hurriedly called him into the laboratory and said happily, "Little Qin, look, we just separated a new herb."

Qin Hai smiled bitterly, "Professor Mo, I found the prescription."

Upon hearing this, Professor Mo was overjoyed and hurriedly asked, "What kind of herb is it?"

"It's not a medicinal herb, but a type of stone."

After Qin Hai explained the details of Cheng Guang's introduction, Professor Mo also frowned. He paced back and forth in the laboratory and said, "The pills are boiling together, there's indeed such a way to cook them. If that's the case, things will be difficult."

Qin Hai said, "Professor Mo, no matter what, I will definitely find this kind of red jade. In terms of the formula, I ask that you spend a lot of effort."

He didn't believe it at all, that the whole world wouldn't be able to find a single piece of red jade. As long as there was one left in this world, he would definitely be able to find it.

After bidding farewell to Professor Mo, Qin Hai immediately contacted the baldie from far away in Europe, asking him to collect red jade from all over the world through Star Light. He believed that with Xing Yao's influence, he would definitely reap some rewards.

After hanging up the phone, when Qin Hai was about to drive away from the University of Chemical Technology, he suddenly saw a girl in front of the car.

The girl was wearing a white coat, blue jeans and a stack of books in her hands. She had a slim and attractive figure, but her face was still as pretty as ever without makeup. Her youthful appearance made her look like a university student.

The one standing in front of the car was naturally Mo Zixuan. Seeing her, Qin Hai could only smile wryly in his heart. Last night, he accompanied the girl to Di, but he didn't even greet her when he was halfway there.

Qin Hai quickly got out of the car and walked in front of Mo Zixuan with a smile: "Little Xuan, I'm very sorry for last night. I left early and didn't even say h.e.l.lo."

Mo Zixuan snorted, "I thought you forgot about me!"

Qin Hai sweated and quickly said, "How is that possible? I really had something to do last night. Otherwise, I wouldn't have done it!"

Qin Hai didn't know whether to laugh or cry, "You're right, I did go to find that Miss Cheng last night. But I'm not dating her, and for another reason. Right, you might not know it yet, but that bottle of ointment was pa.s.sed down from their ancestors. "

Who knew that Mo Zixuan wasn't interested in the latter half of the sentence. She stared at Qin Hai and smiled, "That Miss Cheng seems to have a good figure. It seems that you like girls with long legs? I also know a few girls with long legs, do you want me to introduce them to you? "

"No need, no need, I already have a fiancée!"

"You really don't need it?" Mo Zixuan's eyes slightly narrowed, "My grandfather's health hasn't been well recently. I think we should take him to a sanatorium to recuperate for a few months. What do you think?"

Suddenly, a thought flashed through his mind. He finally understood what Mo Zixuan meant. This little girl was warning him.

There was no need to ask. He was most likely still angry because of what had happened last night.

Qin Hai was at a loss whether to laugh or cry. He could only say, "Tonight, I'll treat you and that long-legged beauty friend of yours to a meal. You can consider it as having forgiven me for not saying anything last night!"