Listening to Mu Zifeng talk about sleeping, everyone looked at the sky, and suddenly found that it was already dark outside, and the day had passed, but it was time to sleep.

Guanghui hurriedly ordered someone to find the best house in the city lord's mansion, arranged for Mu Zifeng and Shen Liu and others to live, and arranged good meals, but after a day of fighting and a few hours of thinking, everyone had no appetite, so they hurriedly went back to the room to rest.

There was nothing to say all night, early the next morning, Mu Zifeng got up as usual, and started a day's daily cultivation in the east, this Haidong City is really a treasure of feng shui, and the purple immortal yuan content in the air is also a little more than that of Shengyao Guangshan, this kind of daily cultivation, although it does not help Mu Zifeng's cultivation much better, but he still insists on it every day.

He deeply understands the truth of gathering less into more and gathering sand into a sea, so he still insists on cultivating every day and does not dare to relax for a moment.

"Whew-"

He let out a long breath of white air, although his cultivation had not changed much, but he felt comfortable all over, as if he had drunk the elixir and jade liquid.

This is the change brought to him by the combination of the Immortal Sutra and the Human Emperor Formula. Since he had cultivated the Human Emperor Technique, he felt that his cultivation speed had increased a lot, and at the same time, the capacity of the meridians was also increasing, although he was able to cross a large realm to fight, but every time he improved, the number of immortal yuan he needed was also an astronomical amount.

His dantian is like a bottomless pit, the small immortal yuan is stuffed into it, and it is useless at all, which also makes him feel a thick egg pain, although his combat power has reached the level of fearlessness below the fourth-order demon king, even if he encounters the fifth-order demon king, even if he can't beat it, he can retreat with his whole body, but this does not mean that his cultivation has reached the level of the immortal king, and it is impossible to return to the Mangchuan continent.

But he firmly believed that as long as he kept cultivating, he would one day reach the level of the Immortal King, and that was when he returned to the Mangshan Continent, when he reunited with his relatives, when he enjoyed family affection, and when he no longer had to worry about it!

Now that he has cultivated from a rookie to the peak of a fifth-order great immortal master, will he be far from seeing his relatives?

Thinking of this, he also clenched his fists, and waved three times at the air, secretly deciding, strength! or strength! He urgently needs to improve his strength!

But now he didn't have time to think about these things, because there was already a person who came to him, and that was Guanghui, the city lord of Haidong City.

"Senior Mu, I didn't disturb your cultivation, did I?" Guanghui clasped his fists and saluted respectfully.

"The city lord of Guanghui came early in the morning, is there anything urgent?" Mu Zifeng did not return the gift.

"There is nothing particularly important for the villain to come, just to see if Senior Mu has anything else that Guanghui needs to do. ”

"Not yet, and if there is, I'll tell you. Mu Zifeng said indifferently.

"Senior Mu, this is the medicinal herb you asked for yesterday, the villain has prepared it for you, please take a look. As he spoke, Guanghui also took out a storage bag and held it to Mu Zifeng with both hands.

Mu Zifeng's heart moved, he didn't expect it to be so soon, Guanghui prepared all the medicinal materials, it seems that this old boy's desire to be promoted to the demon king is very strong, he knew that he would have knocked more bamboo poles.

He stretched out his hand to take the storage bag, and as soon as his spiritual power moved, all the things in the storage bag were imprinted in his mind, and he found that although there were not many medicinal materials in the storage bag, it was only a little more than one-third of the list he had opened, but the quality of the medicinal materials was extremely high, and each spirit grass almost reached more than a thousand years.

It seems that Guanghui has been the city lord for so many years, and there are really a lot of good things that have been looted.

Mu Zifeng nodded with satisfaction, and the expression on his face eased a lot. In fact, the reason why he treats Guanghui so much is because he has a pig brain, a person who can even influence his subordinates' decision-making, his management ability can be seen, such a person to manage the entire Haidong City, I don't know if it is the sorrow of everyone in Haidong City?

But the official doesn't give gifts, since Guanghui can come up with so many good things, he doesn't bother to care about other things.

"Don't worry, the elixir that promoted to the Demon King, I can give it to you tomorrow morning. Mu Zifeng said indifferently.

"It's all up to Senior Mu. Guanghui clasped her fists again and saluted, turned to leave, and her face was full of excitement.

Mu Zifeng put away the storage bag, turned around and returned to the house, but his brows never opened, and he began to think about how to handle this missing case. After all, this is the task of the sect, and he has to work hard to complete it no matter what.

Three days passed in a blink of an eye, and in these three days, Mu Zifeng was busy non-stop, shuttling between the entire Haidong City.

After three days, although there was not much progress, he also gained something.

First, the missing people in Haidong City are all the children of nobles, and none of the children of ordinary civilians are missing;

Second, whether these noble children disappeared as a whole or individually, there was no warning or any abnormal behavior before they disappeared;

The third is that these noble children generally disappear at night, and rarely disappear during the day, and none of their belongings are missing, and they remain in place, which excludes the possibility of robbery and kidnapping;

Fourth, none of the families of these missing disciples received blackmail transmissions, which ruled out the possibility of pirate kidnapping for ransom.

Therefore, Mu Zifeng also came to two conclusions, one is what these kidnappers of noble children are looking for, especially what are they looking for in these noble children, and the other is that they want to use the blood of these noble children, or noble blood, to go to festivals or awaken something?

No matter which of these two points is analyzed, the 100,000 children of the nobles who disappeared are extremely likely to survive.

Thinking of this, Mu Zifeng brought the brothers of the Su family who saw the strange glowing object over again, and asked them to repeat the events of the day in detail, trying to connect the missing noble children with the appearance of that strange light in detail.

He also asked Guanghui to find a map of the Devil's Horn area, and compared the map, let the two brothers mark the location of the strange light on the map in detail, and also marked the reference of that place, and at the same time, he also called up the map displayed by the mysterious belt in his mind, and after the two maps overlapped, he also made an amazing discovery.

Because the map provided by the mysterious belt is at least 5,000 years old, compared with the current map, the map reflects the sea surface of the original Magic Horn area, which is an island, and the area is not small, more than twice the size of the island where Haidong City is located now, so the question is, where is that island now?

After a short period of about 5,000 years, how could that island disappear out of thin air? If something suddenly happened, then why did Haidong City exist so well?

Mu Zifeng compared it repeatedly, and was very sure that the island was not the Haidong Island where Haidong City was located now, because their shapes were not different at all, so he concluded that the Magic Horn area should have been an island before, and for some reason, that island had sunk below the sea surface, that is, there must be a piece of land below the sea.

This discovery also made him excited, if it was a land parcel before, it was likely to be inhabited, and where did those people go?

It is likely that at the bottom of the sea, or somewhere else, as long as the secrets of the bottom of the sea can be revealed, it is likely that the secrets of the disappearance of the noble children will be revealed.

In the past three days, Mu Zifeng visited various aristocratic families during the day, and practiced or alchemy at night, after failing seven times, the Fengsheng Pill was also successfully refined by him twice, once into three pills, once into five pills, two times a total of eight pieces.

Mu Zifeng's alchemy level has really upgraded to the height of an alchemy master, and he can initially try the refining of the super-grade elixir, although the success rate is still very low, but after all, there are successful examples there, he is confident that in the case of becoming more and more proficient, he can practice the super-grade elixir at one time.

In the past three days, the head of the Su family, the head of the Zhang family, and the head of the Zhao family came to see Mu Zifeng once, and saw the elixir and spiritual grass of spiritual power listed on the silk paper, all of which were collected by the three family heads, plus the city lord Guanghui gave it, which was much more than what was listed on his list, which made Mu Zifeng very pleased, and at the same time, he did not hesitate to give the wind ascending pill to the city lord and the three family heads respectively.

The four of them got the pill, and if they got the treasure, they quickly found a cultivation room and improved their cultivation respectively.

After less than half a day, the four of them had really all reached the early stage of the first-order demon king, and then looked at Mu Zifeng's eyes, and they were full of deep respect in fear.

And Shen Liu, the disciples of the Holy Heavenly Pivot Mountain, and Peng Liang, the disciples of the Holy Yao Guangshan, were not idle, they all followed their own channels and ways, shuttling among the four noble families, looking for clues that they thought were useful.

Mu Zifeng is too strong, they are not far behind, and they also want to show the value of their existence through their own real efforts.

Especially Shen Liu, after checking the clues, he almost forgot to sleep and eat, and in the past three days, he has hardly slept endlessly, which also let Mu Zifeng see the combat effectiveness and tenacity of Shengtianshu Mountain. He couldn't help but nod secretly, this disciple of the Holy Heavenly Pivot Mountain was really not in vain.

Fortunately, in the past three days, Haidong City has been calm, and there have been no more incidents of disappearance of noble children, which has made the city lords Guanghui and Mu Zifeng and others feel a lot more at ease.

Mu Zifeng also used the time of alchemy to refine a large number of spiritual pills for himself, it can be said that this addition made him no longer have to think about spiritual pills for half a year, which also made him feel very happy, and he was full of passion when he investigated the case.

It wasn't until the evening of the fourth day that tragedy struck again.