On this day, Yuan Fei was meditating as before, and suddenly his expression moved, as if he had discovered something, and then disappeared from the cave with a flick of his shoulder.

At this time, above a certain mountain peak of the Nine Swords Sect, there were seven or eight monks floating in the void.

The leader is a burly bearded man, wearing a golden crown and a golden robe, and he is the Lord of the Demon Clan, the Demon Dragon Emperor.

The two monks beside the Demon Dragon Emperor were the Ice Jiao King and the short old man.

And more than ten zhang away from the Demon Dragon Emperor, Wan Hailei, Chen Qianyun, and Cang Jiuweng had already appeared in the void for the first time after discovering the abnormality, and confronted the Demon Dragon Emperor.

As soon as the sound of breaking the air sounded, two rays of light, one black and one white, suddenly burst in, and in a flash, the figures of Yuan Fei and Fu Lingshan emerged from it.

"Senior Brother Wan, what's going on?" Yuan Fei glanced at the Demon Dragon Emperor and frowned slightly.

"The old man doesn't know. It's just that the Demon Dragon Emperor and others suddenly came to this sect and said that our Terran monk infiltrated the demon clan area and killed one of its princes, so they specially came here to ask the teacher for their crimes. Wan Hailei said with a solemn expression.

"Is there such a thing?" Yuan Fei couldn't help but look stunned when he heard this.

"You've finally shown up. The Demon Dragon Emperor's eyes flashed with a cold light.

"I've seen the Demon Dragon Emperor. Have you forgotten the gambling agreement between us and us before, and the demon clan will not invade the Yuanxia Kingdom again for a thousand years. Yuan Fei hugged his fists.

"This emperor naturally remembers, otherwise it would not be the emperor who came today, but the army of my demon clan. The Demon Dragon Emperor said with an angry face.

"Just now, Senior Brother Wan has already said something to Zaixia. However, the noble dragon son was killed, and Your Excellency didn't go to find the murderer, why did you come to this sect?" Yuan Fei's heart moved, and he asked suspiciously.

"Hmph, my demon clan's territory is extremely tightly arranged, and although my princes are not highly cultivated, it is extremely difficult to deal with the existence of the general god refining period. Therefore, the person who started it must be a monk who is proficient in the art of concealment or the magic of change.

This emperor heard that you turned into a monk of my demon clan back then, and you can almost confuse the real with the fake, and your strength is far beyond the same level, plus you have many grudges with your own clan, besides you, who else will be the murderer?" said the Demon Dragon Emperor's face was cold.

"It's not a secret, I did turn into a demon clan monk in Xia, but I was forced to do so at that time. However, since the gambling contract, Zai Xia has been traveling in the nearby immortal cultivation world, and this time he has always stayed in the sect to cultivate, but he has never been to the demon clan area. Besides, the grievances between you and me have been resolved, and I will not be stupid enough to provoke the nobles again, let alone kill Your Excellency's prince. Yuan Fei's expression was right.

"Could it really not be that you did this?" After the Demon Dragon Emperor glanced at Yuan Fei a few times with a slight narrowing of his eyes, he was also a little less suspicious.

"If you still have doubts, make a vow to make a demon oath, and if this matter really has anything to do with it, you will not be able to make an inch of cultivation for the rest of your life. Yuan Fei said with a solemn expression.

"Okay, since Daoyou dares to make this oath, I think it has nothing to do with Daoyou. However, even so, it cannot be ruled out that it was done by other monks of the human race. But if the emperor can't find the murderer, he will inevitably spill his anger on your Yuanxia Kingdom. The Demon Dragon Emperor thought about it, but still had no intention of reconciling.

"Don't you think it's too much of a deception? Why don't you suspect the Underworld, and you have to think that it's my Yuanxia Kingdom monk? Now that the Underworld has been suppressed by my Yuanxia Kingdom, maybe it wants to use the hands of the demon clan to start a big war with us again. At this time, Fu Lingshan suddenly spoke.

"The fairy also knows that now the meditation has returned to the underworld. Even if he still has other ideas, he will definitely not dare to run to my demon clan to spread wild. Moreover, the aura left by the place where the accident occurred was not owned by the cultivators of the Underworld, but was somewhat similar to Yuan Daoyou's magic sword aura, so the emperor was suspicious. The Demon Dragon Emperor said.

"Demon Sword, could it be his ......" Hearing this, Yuan Fei couldn't help but be shocked in his heart.

"I don't know who Yuan Daoyou is referring to?" said the Demon Dragon Emperor's eyes flashed.

"If it is really as your Excellency said, it is very likely that the person who killed your prince is 'Xia Longyao'. Yuan Fei thought about it.

The Fire Devouring True Demon Sword was originally obtained from the Demon Cave back then, and that Demon Cave happened to be where Xia Longyao lived. In this way, it is not impossible for Xia Longyao to refine another treasure similar to the magic sword. In addition, Yuan Fei remembered that when he was in the cave, Xia Longyao had robbed a lot of materials, thinking that the purpose was to refine magic weapons.

"Is it him?, I wonder if you have any evidence?" the Demon Dragon Emperor muttered.

"It's just speculation, but I can't come up with evidence. However, since he killed several Jiaolong descendants of the demon clan one after another, he thought that it must be of any use. And according to the guess, it is very likely that it will shoot again. Yuan Fei touched his chin and said thoughtfully.

"What you said is true?" said the Demon Dragon Emperor angrily.

"It's just speculation below, whether this is really the case, and we can only wait and see what happens. Yuan Fei smiled bitterly.

"Hmph, if it's really like what you said, the emperor will definitely let it come and go. However, I still have to trouble Daoyou to go on a trip with the emperor. After the Demon Dragon Emperor snorted coldly, his gaze suddenly fell on Yuan Fei.

"What do you mean by this, Your Excellency?" said Yuan Fei with a frown.

"Don't worry, as the emperor, I will never embarrass you. It's just that the emperor has only heard of the person he said, and he has not seen it with his own eyes, so he still needs to be testified by the Taoist. Of course, in this way, you can also clear the suspicion of Daoyou, if it is really not the Daoyou's doing, I think Daoyou will not refuse, right?"

"Although I have a heart to help, if I go to the land of nobility, to be honest, I do have some worries. Yuan Fei smiled awkwardly.

It's no wonder that the land of the demon clan is the territory of the Demon Dragon Emperor, with his violent temper, who knows what the consequences will be.

"My demon clan is not like you, and the Terran monks don't keep their promises. Since Daoist friends are not at ease, then this king will stay in Guizong, and after Daoist friends return safely, how about this king leave Guizong again?" At this time, King Bingjiao suddenly stepped forward and said.

Seeing this, Yuan Fei couldn't help but glance at Wan Hailei.

"Okay, then Yuan will go on a trip with Your Excellency. Yuan Fei hesitated for a moment, and finally nodded in agreement.

"Brother Yuan, the land of the demon clan is full of dangers, and your going this time is tantamount to entering the Longtan Tiger's Den. Fu Lingshan worriedly dissuaded.

"There are Bingjiao Daoists who stay in this sect, and I believe that the Demon Dragon Emperor will not really do anything to me. And even if something happens, I have a way to get out of it. Yuan Fei smiled slightly.

As soon as she heard this, even if Fu Lingshan had the heart to stop her, she couldn't say anything.

"Happy, in that case, I'll leave as soon as possible. The Demon Dragon Emperor appreciated.

"I also hope that Senior Brother Wan must keep an eye on the Ice Jiao King during this time. Yuan Fei's lips moved slightly and he said to Wan Hailei.

Wan Hailei naturally understood what Yuan Fei meant, and nodded solemnly.

Then Yuan Fei told a few more words, and then he shot away with the Demon Dragon Emperor and the short old man in the distance.

And the Ice Jiao King looked relaxed, and after glancing at the back of the Demon Dragon Emperor and the others leaving, he swaggered into the Nine Swords Sect.

After Wan Hailei and the others glanced at each other, they immediately "hula" and surrounded them, not daring to monitor them in the slightest.

......

And from the Yuanxia Kingdom to the land of the demon clan, it is extremely far away, and while flying, Yuan Fei, the Demon Dragon Emperor, and the short old man will also talk a few words from time to time.

From the conversation, Yuan Fei also knew the origin of the short old man, whose name was 'East Fox', and he was the head of the demon fox clan. And when the demon clan invaded Fengyuan Kingdom, he had participated in the Great War at that time, and he happened to be responsible for attacking the Beiyue Shang Alliance.

However, at that time, Yuan Fei's cultivation was still shallow, and Donghu was only dealing with those high-level monks of the Beiyue Business Alliance, so the two naturally had no intersection.

A month later, Yuan Fei and the three of them entered the demon clan area, and under the leadership of the Demon Dragon Emperor and the Eastern Fox Old Monster, they came to a desolate valley.

"This is the place where Your Excellency's prince died?" Yuan Fei couldn't help frowning after taking a look at the surrounding environment that had been ruined by the fierce battle, and when he stared at a certain place in the valley, he was even more startled.

As far as the eye could see, there was a huge crater.

This pit is in a square shape, more than ten zhang deep, and it is obviously forced by some powerful magic weapon. And with such a huge destructive power, Yuan Fei thinks that with his current strength, he is far from reaching this level.

"Yes, the son of this emperor was killed by some powerful magic weapon. Speaking of which, this kind of terrifying strength is definitely the work of a monk above the later stage. Although your strength is far superior to that of your peers, you are not yet at this level. Therefore, the emperor does not really think that this matter is the work of Taoist friends. It's just that because of the bet, the emperor has lost some face. And now the emperor's son has been killed inexplicably, if the emperor can't find the murderer, his prestige in the clan will naturally be affected a lot, so he can only grieve his friends for a while. The Demon Dragon Emperor suddenly said with a soothing tone.

"It turns out that Your Excellency wants to make a scapegoat. However, since I have come here, I will help you find the murderer. However, I want to know, in addition to the prince, has this person also done anything to other demon clans?" Yuan Fei smiled bitterly, and his expression was right.

"In the past year, he has killed three Jiao juniors of the emperor one after another. Now he is even more bold to attack the son of the emperor, and he does not take the emperor in his eyes at all. Hmph, once the emperor encounters it, it is absolutely necessary to break it into pieces. The Jiaolong Emperor said ruthlessly.

"Your Excellency is saying that all the victimized demon clans are all Jiaolong clans?" Yuan Fei said in surprise.

The Dragon Emperor nodded silently.

"If that's the case, you'd better let the Jiaolong clan not go out alone in the near future, and then arrange for the later existence to protect them at any time. Yuan Fei said thoughtfully.

"The emperor has already decreed, and most of the later existences have their own arrangements. By the way, Donghu, there are the emperor and Yuan Daoyou here, and you can also return to the clan in case of accidents. After thinking about it, the Jiaolong Emperor commanded the short old man.

Donghu glanced at Yuan Fei, nodded, and flew away.

Only Yuan Fei and the Demon Dragon Emperor were left.