Shangguan Yi roasted the silver needle over the fire and threw it away. Then he asked Cheng Feng to clean up a room and let Cheng Feng go to rest first.

"Senior brother, I believe tomorrow you will know what kind of Gu worm is in his body. You go back and rest first, I'm going to the pharmacy to get some preparations. Shangguan Yi said slowly.

Yun Feng thought for a while and said, "You also rested earlier, today can be regarded as a busy day." ”

Shangguan Yi waited until Yun Feng left, and then plunged into the medicine room.

Shangguan Yi knew that since Cheng Feng's body had become a container, there must be Gu worm eggs in his blood, so he extracted some of Cheng Feng's blood, and he planned to feed these Gu eggs with other Gu worms to see what kind of Gu worms they were. So, he took the Gu worms he raised and put them in a bottle. Then he noticed that the blood was starting to bubble, so he hurriedly sealed the bottle and returned to his yard.

Early the next morning, Shangguan Yi came to the pharmacy. He moved a small jar and gently opened the bottle. Shangguan Yi's brows furrowed, the Gu worms he put in really didn't even have a corpse devoured by these eggs. However, when he opened the bottle, he saw black writhing threads. Could this be a nematode that can control the human body?

Shangguan Yi looked at these black nematodes and thought of the Gu worms that were put in yesterday. After the Gu worm was put in, the blood in the bottle began to churn. He sensed that the Gu worms he threw in yesterday didn't seem to be the match for these nematodes. Shangguan Yi took out another green shiny Gu worm with a carapace and threw it in. This Gu worm is considered a top-grade Gu worm, under normal circumstances, Shangguan Yi would not waste this Gu worm, you must know that he has only refined ten Gu worms in total. If this Gu worm was the nemesis of these nematodes, then he would have a way to prepare an antidote for Ah Zi.

Shangguan Yi hurriedly closed the bottle, and heard the sound of sizzling inside, Shangguan Yi calculated the time, and did not dare to open the bottle. Who knew that it would only be a quarter of an hour, and no sound would come from inside.

Shangguan Yi thought about it and opened the bottle, and in an instant those nematodes gushed out, and Shangguan Yi hurriedly threw the bottle into the prepared jar. He found that the green Gu worm was gone, but the nematodes had really grown up. Originally, the nematode was as thick as a silk thread, but now it is as thick as the large silver needle in Shangguan Yi's hand. Yesterday, Shangguan Yi couldn't count how many insects there were, but now it's clear at a glance.

Shangguan Yi watched his Gu worms being digested by these nematodes like this, and obviously felt that he was a little painful. It seems that these Gu worms are really powerful, Shangguan Yi doesn't plan to waste his Gu worms, he wants to see what these larvae will become when they mature.

So, after Shangguan Yi covered the jar, he came out of the medicine room.

In the evening, Shangguan Yi went into the medicine room again. When he opened the jar, he almost threw the lid away. Because there was only one nematode left, and all of them turned into a pool of blood. Shangguan Yi observed carefully, and the size of the nematode did not change, but the color changed from black to black and red. It turns out that these nematodes are killing each other, and it seems that this one left is the most powerful one.

It's just that, what is the nemesis of this Gu worm? This is the first time that Shangguan Yi has no idea where to start, after all, he has never seen this kind of nematode.

Shangguan Yi studied in the medicine room for an hour, but in the end there was nothing he could do, and then he closed the lid and left the medicine room, and went to the Medicine King Valley to find Yunfeng.

"You're here? Have you researched the Gu poison? Yunfeng asked.

"Originally, I wanted to bring it, but I didn't have a clue yet, and I was worried that it would startle the snake, so I didn't bring it. Besides, it's not very convenient to bring it out now, so if you have time, you can go with me to see it. Shangguan Yi said with a frown.

"Okay, let's go to you first, and then we'll go to the Great Elder together. Staring at him, there will always be some clues. Yunfeng said softly.

"When the time comes, I want to go to Elder Zheng. After all, he doesn't know how to refine medicine in the middle of the night, so I want to see if I can steal one pill. Shangguan Yi said.

"Hmm."

Yun Feng instructed the disciples at the door that no matter who came here to look for him, they would say that he had already fallen asleep. After he changed his clothes, he blew out the candle flame and went to the Poison Doctor Valley with Shangguan Yi.

After Shangguan Yi and Yun Feng arrived at the courtyard, they went directly into the medicine room. Shangguan Yi brought the jar to Yunfeng, and then said, "Take a look." ”

Yun Feng frowned, and then said, "Didn't you still hold a small bottle yesterday?" How did it grow so fast? ”

"Well, after I came back yesterday, I first put a Gu worm in, who knew that after my Gu worm was devoured by them, they grew up. Later, I didn't release any more Gu worms, they killed each other, and in the end they only became one. By the way, be careful when you open it, I'm worried that this Gu worm will suddenly come out. Shangguan Yi said slowly.

Yunfeng nodded, then carefully opened the lid and found that the insects inside had grown and looked about the size of an earthworm. Shangguan Yi also looked over, and then said softly: "Chengfeng's blood has been completely absorbed, and this insect is raising itself." Senior brother, this Gu worm doesn't seem to have any lethal power, but it has devoured my green-headed Gu. So, I want to know who its nemesis is, so I can only continue experimenting. However, my Gu worm looks like it's going to suffer. ”

"I didn't expect this Gu worm to be so powerful. Isn't there a direct way to deal with him? For example, kill it directly with a silver needle? That's right...... Do you think that Ten Thousand Gu King will be the opponent of this Gu worm? Yun Feng asked with some confusion.

"Senior brother, before it enters the human body, you can kill him with a silver needle. However, if you want to give Ah Zi a Gu solution, you can't kill the Gu worm with one needle. You are not sure about the Gu worm on Ah Zi's body at all, you know from the pulse diagnosis of Cheng Feng, I did not directly solve the Gu for Cheng Feng, but only extracted the blood from his body. Because, we can only sense the Gu worm in his body, but we can't determine the location. In particular, this Gu worm would not be tempted by the outside world at all. Therefore, the only thing that can solve the Gu for Ah Zi and Cheng Feng without harming them is to find the nematode's nemesis. Shangguan Yi sighed and said helplessly.

"You're good at solving Gu, even you say that, it seems that there is really no way." Yun Feng also said helplessly.

Yun Feng was just about to close the lid, when suddenly the Gu worm inside moved. He hurriedly said, "Senior brother, look at it." ”

Only then did Shangguan Yi step forward and notice that the Gu worms in the jar seemed to be changing again. It's that the nematode has become as thick as a thumb, and the worm no longer wants a thread, and a pair of antennae have grown on its head, and many feet have grown under its body.

Shangguan Yi thought about it, and hurriedly took out another Gu worm from a container, which looked colorful and very bright. However, Yun Feng knew that this Gu worm was very poisonous. Generally, people who fall for this Gu would rather commit suicide than survive. And Shangguan Yi gave his Gu worm a nice name, Nightmare. Many people don't recognize this kind of Gu worm, because it was refined by Shangguan Yi when he was inadvertent.

Shangguan Yi directly threw the Gu worm into the jar, and then left a gap in the jar so that he and Yun Feng could observe it.

Because the nematode smelled the nightmare, and the nightmare seemed to sense the danger, and when it entered the jar, it hid in a corner. The nematodes are not afraid of nightmares at all, and rush directly towards the nightmare.

The nightmare should have felt that the nematode was getting closer and closer to it, and it should have known that the nematode in front of it was very dangerous, so it had to raise its colorful wings.

But something strange happened, the nematode didn't seem to move, just watched the nightmare from the other side. Nightmare suddenly snapped off two of its wings and slammed headfirst into the jar. The nematode only moved at this time, and it twisted its body to step forward and devour the nightmare one by one. Shangguan Yi swallowed his saliva, he never thought that Nightmare would actually do this. What surprised him the most was that this nematode didn't do anything, just staring at the nightmare, could it be that this nematode was controlling the nightmare's thoughts? This is also too absurd, Gu worms can actually control Gu worms? He ignored what would happen to the nematode and quickly closed the lid. Then he said slowly: "You see, this nematode is very weird. I really didn't think that Nightmare was no match for it. If it goes on like this, my Gu worms will be wiped out by this guy. ”

"Let's go to Elder Zheng's place. Perhaps, his pharmacy will have the answer? Yunfeng said.

"Let's go."

After the two of them left the medicine room, they quickly went to the courtyard of the elder. The courtyard was quiet, but who knew that the medicine room was lit by candles. The two of them glanced at each other but didn't dare to approach the medicine room easily, after all, since Elder Zheng was able to develop this kind of Yin Yang Gu, it proved that his Gu technique should not be weak. If you want to get close to the medicine room, you must first get rid of the Gu worms in the courtyard, otherwise it will be easy to be discovered by the Elder Zheng.

So, Shangguan Yi took out a bottle and sprinkled the Gu worms inside in the courtyard. After about a quarter of an hour, Shangguan Yi spoke, "Go." ”

Only then did the two of them fall to the top of the medicine room, Shangguan Yi removed a tile, and then carefully observed the bottom.

It turned out that Elder Zheng was not refining medicine in the medicine room, and when he looked closely, Elder Zheng was holding an altar and dripping blood into the jar.

They looked in the direction of the jar, and it turned out that there was a turquoise Gu worm inside. Among the five elders in the past, only one Elder Qu was from the Poison Medicine Valley, so only Elder Qu could refine Gu techniques. So, who did Elder Zheng learn the Gu cultivation technique from? You must know that the Gu he raised seems to be also a Gu King, but it is not a Ten Thousand Gu King. However, if you want to deal with this Gu King, only the Ten Thousand Gu King can deal with it. After the elder was dripping blood, his face looked a little pale, it seemed that this Gu King had already absorbed a lot of his blood. There are not a few people who raise Gu with blood, but if the Gu King is not well controlled, it is easy to be counter-controlled, and the Gu people will be counterattacked. It can be said that it is very dangerous, why would the elders do this? So, was this Gu King really refined by Elder Zheng himself?