In the Hongdu Ling Mansion, Ye Xiao and Hua Xinxian were busy planting bluestone grass and green jade grass, and at the same time, the two of them carried out various experiments. The growth experiments of bluestone grass and green jade grass, the comparative experiment of the effect of bluestone grass on leaf tail insects and the effect of green jade grass on leaf tail insects, the characteristics of green jade grass, etc., have a tendency to become botanists. In the course of these experiments, Hua Xinxian also guessed some clues about the origin of this insect plague, and the problem really lay in the green jade grass.

"Two adults, this is the legend collected today, this time we met a centenarian, he remembers it clearly, and asked the two adults to look at it. Li Tie took the recorded book and found the two.

Ye Xiao hurriedly opened the notes with Hua Xinxian and looked at them, it turned out that thousands of years ago, there was a folk festival in the north of Dizhou called the Qingyu Festival, on that day, everyone had to go out to collect the green jade grass, the more green jade grass collected, the luckier it was, and the collected green jade grass was generally hung on both sides of the door to ward off evil spirits and avoid harm. However, with the passage of time, this festival slowly disappeared into the long river of history, because people found that even if it was not the Qingyu Festival, it had no effect, and the green jade grass could not be alchemized, and the value of the refining instrument was extremely low, as for why there was such a festival, people have long forgotten it.

"Brother Hua, it seems that your title of knowing the world does not live up to the truth, but now you don't know anything. Ye Xiao teased.

Hua Xinxian's face turned red, "It's not that you don't know about me." Don't make fun of me, it's not like you don't know the origin of this Qingyu Festival. ”

"I don't know, but I have helpers. Ye Xiao smiled slightly, calculating the time, his master should also reply to the letter.

Sure enough, not long after, Ye Xiao received a letter from Mu Chengshu, Mu Chengshu never forgot it, he stayed on the first floor of the Spring and Autumn Temple alone and read the book for decades, how extensive his knowledge was, Ye Xiao immediately thought of asking Mu Chengshu for help.

"If it was Mr. Mu, maybe he really knew, what did Mr. Mu say in reply?" Hua Xinxian asked curiously.

Ye Xiao finally breathed a sigh of relief after reading the letter, and his conjecture was indeed not wrong.

"Master said that a long, long time ago, before the founding of the Xuanling Empire or even before Emperor Xuan was born, there was an insect plague on the Imperial Continent, but that insect plague mysteriously died out on its own. Later, a capable man and wise man studied this matter, and the climate of the emperor changed at the time of the insect disaster, and it rained for three consecutive months, and then the green jade grass grew in large quantities, and people also recognized this problem, so they regarded the green jade grass as a symbol of auspiciousness, and also established the green jade festival to commemorate. Ye Xiao explained.

"I see, but people in ancient times got the cause and effect wrong, not because of the end of the insect plague Qingyu grass multiplied in large quantities, but because of the large number of green jade grass multiplied that led to the end of the insect plague, people only regarded Qingyu grass as auspicious, but did not realize that it was the greatest hero to resist the insect plague. Hua Xinxian said.

"That's right, based on the experiments of these days, you should know the truth about this insect plague. Ye Xiao suddenly asked.

Hua Xinxian's brow furrowed, "I have some ideas, but I lack a thread that connects everything. ”

"The reason why the insect plague was quelled a long time ago was because of three months of rain, and the bluestone grass was drowned in large quantities, and the bluestone grass thrived because it was more resistant to moisture, but now there is no such good luck. Ye Xiao prompted.

Hua Xinxian's eyes widened when she remembered what had happened before, and she finally figured out the crux of the problem, "It's a big cow eater!"

"Yes, anyone who has ever planted crops knows that a very important step when planting crops is weeding, because weeds are much more vital than ordinary vegetables, so they will compete for more nutrients and water, which will prevent vegetables from growing well. This green jade grass and this blue stone grass are the relationship between vegetables and wild grasses, and the weeding cattle were driven out. Ye Xiao added.

Hua Xinxian finally figured out the key to everything, "According to our research these days, in a normal environment, Qingyu Grass can't compete with Qingshi Grass, if you don't interfere with Qingyu Grass, Qingshi Grass will completely squeeze out the living space, and the big cattle, a low-level spirit beast that is widely distributed in Emperor Continent, is the key, they only eat Qingshi Grass and not Qingyu Grass, which greatly reduces the survival pressure of Qingyu Grass." According to the results of our previous experiments, the green jade grass will emit a kind of breath that people can't smell, this breath can inhibit the reproductive ability of leaf tail insects, and the roots of green jade grass also have the effect of consolidating the leyline aura, so that the earth vein aura cannot penetrate the ground on a large scale, so the green jade grass is like a seal specifically for leaf tail insects. However, some people spent a lot of money to buy the tongue of the big eating cow, which led to a large number of mortals and monks participating in the killing of the big eating cow, and those who raised the big eating cattle did not hesitate to slaughter the big eating cattle in the circle in advance, after all, if you miss this village, you may not have this shop. Because the big cattle-eating cattle were killed and killed, the crazy growth of the bluestone grass squeezed the space of the green jade grass, which led to the large-scale reproduction of the leaf tail insects in a short period of time, causing this insect plague. ”

"That's true, so the people who bought a large number of big cattlemen are the culprits of this insect plague, not some Five Elements Sect. Ye Xiao laughed.

However, just as the two of them were about to take further action, they felt that the sky suddenly darkened, and then they mysteriously disappeared from the elixir garden.

"Trapped in my Yin and Yang Pure Bottle, it is impossible for you to escape with your superior skills, and you can't even ask for help. Mr. Xue, who was wearing the golden mask, said, "Hey, this is how this karma was repaid on my disciple. ”

The biggest headache after Ye Xiao and Hua Xinxian disappeared was Li Yongle, he had searched all possible places but still couldn't find any trace of the two, the disaster was so serious, but these two adults said goodbye without saying goodbye, which made Li Yongle angry, and he had to write a letter to report to the court.

Soon after, Ying Zisheng really sent Qin Cha again, Mo Benchu, a true immortal ninth-order master from the Legalist family. As soon as he took office, the direction of investigation turned to the investigation of the Five Elements Sect. Ye Xiao and Hua Xinxian's abduction was not known.

These days, the life of the Five Elements Sect can be described as very difficult, whether it is the people of the Buddhist family, the people of the Natural God Sect, and the people of the Xuanling Empire, they have all launched a siege and interception of them, on the grounds that they destroyed the Eye of the Spirit Spring and deliberately cultivated leaf tail insects with the leyline aura, which led to this insect disaster. The people of the Five Elements Sect had a bitter face, even if they wanted to, they didn't have the strength, not to mention that they hadn't done these things at all.

Ye Xiao and Hua Xinxian in the Yin and Yang Pure Bottle were ignorant of everything that was happening in the outside world, and this treasure exuded red and blue light, becoming a space of its own. Ye Xiao activated the spatial teleportation charm, but he could only shuttle in the bottle, and no move could shatter the surrounding bottle walls.

"Where are we trapped?" Ye Xiao wondered.

"That's right, it should be within any magic weapon, just like Ye Xiao's Feiyulou, but Feiyulou is used to hold people, and this treasure is used to kill people. As soon as Hua Xinxian's words fell, a gust of red wind blew and made her tremble and lose her spirit, and a gust of blue wind blew over Ye Xiao was also heavy.

"This treasure seems to be refining us into a yin and yang qi .....," Hua Xinxian reminded.

Ye Xiao hurriedly took her into the Feiyu Building, but the red and blue wind also blew in, and the Feiyu Building couldn't stop it at all.

"What a powerful treasure! This horror is not an ordinary immortal weapon, who is harming us. Ye Xiao frowned.

"I don't know, but we just found out the truth and encountered this difficulty, this matter should be related to the insect plague, someone doesn't want us to disclose the truth, he doesn't even dare to sneak attack, afraid that we have any means of survival, so I directly used this treasure to arrest you and me, but use this yin and yang two qi to refine. Hua Xinxian analyzed.

Ye Xiao nodded, this is the cleverness of that person, he didn't give him a little time to react at all, otherwise Ye Xiao would be able to crush the jade pendant and ask the martial god for help, now that he is locked up in this magical treasure, Ye Xiao doesn't dare to crush the jade pendant easily, if the news can't be transmitted, wouldn't he waste the precious opportunity for help?

At this time, the two-colored breeze blew again, making the two even more uncomfortable, and this treasure could completely decompose them into yin and yang qi.

"What should I do? I just tried with my domineering sword intent and couldn't break this treasure. Ye Xiao frowned, the domineering sword intent was enough to destroy an ordinary immortal weapon, but there was no way to take this immortal weapon, this immortal weapon was probably the best immortal weapon.

"Even if you can't break me, I can't do anything. Hua Xinxian's face also had despair written on her face.

At the critical moment, Ye Xiao gave full play to his advantages and was not chaotic in the face of danger, but he observed this yin and yang qi.

"Sure enough, the two qi of yin and yang are only useful for things that are out of balance between yin and yang, which means that if you and I reach a state of yin and yang balance, we will not be disturbed by them. Ye Xiao said suddenly.

"But how can we two big men achieve a balance between yin and yang. Hua Xinxian asked puzzled.

Ye Xiao looked at Hua Xinxian and shook his head, "This girl has deceived herself with her psychological hints, what is it that makes her care so much about her gender? So much so that she even lied to herself? But that mysterious person probably didn't expect Hua Xinxian to be a woman in the first place, otherwise he would not have been able to send us into this treasure at the same time." ”

"Brother Hua, I won't sell you and my life, you are a daughter. Ye Xiao suddenly stared at Hua Xinxian and asked.

Hua Xinxian was slightly stunned, and then his eyes showed murderous intentions, as if he wanted to kill people, and then forcibly suppressed his killing intent. "How do you know?"

"I've known this for a long time, but if I want to leak it, why keep it a secret until now. Ye Xiao saw that Hua Xinxian suppressed his murderous intent, and only then did he know that Hua Xinxian still trusted him.

"Impossible, this treasure of disguised gender on my body can't even detect the divine realm, how do you know?" Hua Xinxian was puzzled, she had been pretending for so many years and no one had ever seen through it.

"It's not that I see who you are, it's it. Ye Xiao took out the Tianyan Bead, and as soon as the Tianyan Bead sensed the existence of the Dao Flower String, the light bloomed, and it automatically flew towards the Flower String.