Lu Yao always had a lot of puzzles in his heart, wanting to find out what the relationship between Huo Ying and this female officer was, but after all, he still couldn't resist the temptation of the thousand-year-old medicinal herb on him, and followed Huo Ying to the most heavily guarded secret room of the Yimeng.

Walking into the secret room, feeling the kind of relaxation and joy in the surrounding air, Lu Yao felt that this place was more like a fairy family's medicine garden, overflowing with aura, and the body was indescribably comfortable, although there was no sunlight, but it seemed to be standing in a wonderful world of sunshine and birds singing and flowers.

"This is my favorite place, and it is also a place that I have spent almost my whole life creating, how does Lu Gongzi feel?" Huo Ying watched Lu Yao look at the place several times, and then asked with a smile.

"Away from the hustle and bustle of the city, every carving is just right, whether it is temperature or humidity, it is the most suitable place for the growth of elixir, it is not an exaggeration to say that it is the Immortal Cave Mansion!" Lu Yao couldn't help but admire.

"Oh, Lu Gongzi knows the elixir?" Huo Ying keenly caught the word "elixir" that Lu Yao said, and asked in surprise.

"Study the classics and know a little bit about them." Lu Yao knew that he couldn't help but say that he had lost his mouth for a while, and wanted to cleverly bypass this topic.

"The history of China is 5,000 years, from Pangu to the opening of the world, to the Yanhuang Chiyou War, to the Qin Emperor and Han Wu, until today, I have checked almost all the historical classics, but I have never seen any original medical classics mention the word elixir, Lu Gongzi is trying to deceive my old man, right?" Huo Ying's face could not see joy, anger and sorrow, and he said lightly.

"This old man is not simple, you can't hide it from him, you might as well take advantage of the situation to test him." The sound of leaving Xinjiang suddenly sounded in Lu Yao's sea of knowledge.

The judgment of leaving Xinjiang is always so accurate, not to mention that even if there is no reminder to leave Xinjiang, Lu Yao has already realized the seriousness of the problem, Huo Ying tried his best to bring himself here outside, maybe he has found some clues, if he blindly uses false words and clichés to go to the round at this time, maybe it will only be a snake to add to the picture, and he wants to cover up.

Lu Yao made up his mind, so he asked tentatively, "Uncle Ying has probably heard of the legend about the elixir, right?" ”

"Legend, haha, you say it's legend?" Huo Ying suddenly laughed twice, stared at Lu Yao and said: "I thought that Lu Gongzi was a fellow Taoist and a temperamental person, but I didn't want me to see the wrong person, in this case, you and I don't speculate, let's leave!" ”

Huo Ying had some accusations on his lips, saying that he wanted to leave without speculation, but his feet seemed to have roots, and he didn't move a single step, and he always stood there.

"Uncle Ying, what do you think if I say that I not only know the elixir, but also can refine the elixir?" Lu Yao was instructed to leave Xinjiang and said cautiously.

"I really want to believe you, but before I believe it, shouldn't you show some real skills, it's not a good quality for young people to like to brag about themselves." Huo Ying asked rhetorically without answering.

Diao Wengui said that Huo Ying, the chief appraiser of Yimeng, only identified the year of this medicinal material, but he didn't know what this medicine was, although Lu Yao didn't know it, but he had already seen it when he left Xinjiang.

Since Huo Ying wanted to test whether Lu Yao really had the ability, and the matter had reached such a point, Lu Yao could only give it a go, slowly walked two steps forward, walked to the side of the medicinal herb that was full of strange fragrance and grew luxuriantly like a small tree, leaned over and sniffed it with his nose, and then gently stroked it with his fingers, squinting his eyes in contemplation.

Lu Yao seemed very calm and calm, but Huo Ying's heart was turbulent, carefully observing Lu Yao's every move, wanting to find some clues from it.

After a long time, Huo Ying found nothing, but the expression on Lu Yao's face changed and changed, and after half an hour, Lu Yao suddenly opened his eyes, looked at Huo Ying and said, "Uncle Ying, what do you say is the age of this medicinal herb?" ”

"At least a thousand years or more." Huo Ying did not hide it and blurted out.

"Wrong, wrong, wrong, I said it was at least three thousand years." Lu Yao said three "wrong" words in a row, and then said his judgment in one mouth.

"Impossible, this thing looks like a small tree, and it also has the pattern of annual rings, you see here." Huo Ying took a step forward, pointed to a location on the root that was almost buried by the soil, and said: "The annual rings of the tree are a circle of a year, but the annual rings of medicinal materials are different, a circle is at least a hundred years, this medicinal tree has ten circles of very obvious lines, and a circle of very vague lines, according to this reason, at least more than a thousand years, as for the vague circle of lines is the annual rings that have not yet grown, since I found him more than thirty years now, the lines have also changed a little, I conclude that it is just over a thousand years, It is about to reach the year 1100. ”

"Uncle Ying, what you said sounds very reasonable, if it was a year ago, maybe I would have thought so, but now, I can't agree with your opinion." Lu Yao overturned Huo Ying's theory with a smile, and continued with a stunned look on the other party's face: "People are divided into three sects and nine streams, and medicine is also divided into three, six, nine and so on, if it is an ordinary medicinal material, your theory is completely correct, but don't forget, it is an elixir-level medicinal material. ”

"What do you mean by that?" Huo Ying asked puzzled.

"Take a closer look at the lines." Lu Yao pointed to the lines that could be seen with the naked eye and said, "Did you find anything?" ”

Huo Ying did not doubt him, and according to what Lu Yao said, he once again approached to take a closer look.

A little, Huo Ying was still at a loss, looked at Lu Yao and said, "Master Lu, forgive me for being clumsy, I didn't find anything. ”

Lu Yao smiled and didn't speak, but stretched the middle finger of his right hand into his mouth, bit it gently, and two drops of red blood oozed from his fingertips, and then gently smeared the blood from these two places on the fracture, and said, "Uncle Ying, take a look again, is there any change?" ”

"How so, how so?" Uncle Ying took a look and found that those lines had changed with the naked eye, but he still couldn't believe it in his heart, he rubbed his eyes vigorously, and then looked, it was still the same use, his body shook violently, if it wasn't for Lu Yao's quick hand to hold it, maybe he would have fallen over one of them, and he muttered in his mouth: "This is impossible, how can this be?" ”

"Uncle Ying, if my judgment is correct, this is a three-thousand-year-old blood crying tree." Lu Yao slowly explained: "The Blood Cry Tree, a kind of elixir that can live the dead, flesh and bones, and improve cultivation, what you said before is not wrong, the medicinal herbs also have annual rings, and a pattern is a hundred years, but you ignore that the lines of the elixir are bright and dark, and the year of the Blood Cry Tree can generally only be clearly judged by people when it reaches more than five thousand years." ”

"Five thousand years?" Huo Ying asked puzzledly: "Didn't you say that he was three thousand years, so how did you judge its vintage?" ”

"Come and see." Lu Yao pointed to the lines that had been soaked in blood, and said, "The lines you see are those that have gradually taken shape and can be detected by the naked eye, and these lines are not easy to detect, unless they are treated by special means......

Lu Yao explained to Huo Ying in detail, it turned out that Huo Ying only saw those lines that appeared, but could not see those lines that were very hidden and even imperceptible, that was because these lines had not yet reached the age of appearance.

There are two extremely fine lines in the middle of the circles of lines that Huo Ying saw before, and those small lines represent a hundred years, and they are only gradually revealed after being soaked in Lu Yao's essence and blood, these lines that were not discovered are also heavy, light, and the heavy one is almost fused with the lines that can be seen by the naked eye, and the light one is completely invisible, and at this time it is soaked in blood, and all of them are revealed.

According to Lu Yao's explanation, each one is a hundred years, Huo Ying saw ten clear lines and one vague line, so he concluded that it was just over a thousand years, but at this time, according to Lu Yao's theory, after the blood was soaked, there were twenty lines, that is to say, this blood cry tree has thirty lines of different shades, that is, it is consistent with the previous statement of three thousand years.

After Lu Yao said this, he stood there quietly, not bothering Huo Ying, he knew that Huo Ying at this time needed enough time to think and understand, although he was not proficient, but he had already entered the door, only if he figured it out, he really understood, and he would not easily accept things forcibly instilled in him by others.

……

"Master, what is the effect of this blood cry tree?" Lu Yao took advantage of Huo Ying's own comprehension to quickly communicate with Lijiang and asked.

Lu Yao actually didn't know these things, a year ago he was still an ordinary person, he didn't know what immortal cultivation was, and he didn't know what elixir was, and he only knew the concept of elixir not long ago, the reason why he said this was because he was told by Lijiang to him, although he told Huo Ying to listen, but in fact, he didn't understand it very well.

"The Phantom Dragon Pill can allow you to have the magical power of the Divine Dragon for a short time, it is a semi-elixir, but the Blood Cry Tree is different, it is a real God-given elixir, and its effect is far from being comparable to the Phantom Dragon Pill." Lijiang explained carefully: "The Phantom Dragon Pill can temporarily allow you to have the skill of flying the dragon, which is a consumable, the time is limited, and it will be gone after use, but the Blood Cry Tree is different, he can complete the process of exchanging blood for you, allowing you to step from a mortal to the ranks of immortals......"

Through Lijiang's explanation, Lu Yao finally understood that the strength of the Blood Cry Tree, if the Phantom Dragon Pill is a cheating elixir, allowing you to have a breath of time for the speed of the Divine Dragon to soar, then the Blood Cry Tree can allow you to complete the blood exchange, and advance from a mortal to a god, which is a rare elixir.