"puff!"

The Demon Order suddenly emitted a shining black light, and at the same time the volume suddenly increased, becoming as big as a table, which scared Jiang Chen.

He trembled around the bigger demon token and found that in addition to its size, there was another obvious change, that is, a piece of text with white light appeared on the plane at the top.

Jiang Chen looked closely and saw that the text turned out to be a question, which read: This Holy Ancestor is a person who pursues perfection. Even if he is a junior disciple of my Tianmo Sect, if he cannot find the fifth perfect number like me, he cannot discover the mystery of this treasure... Then let this treasure be passed on as a token of the head of my Tianmo Sect!

"It seems that this is the puzzle left by the Demon Saint Ancestor." Jiang Chen thought to himself, and then continued to look down.

I saw that there were five elements on the Tianmo Ling tablet with white text. The first four lines have been written, and I guess they would give others a hint of what a perfect number is.

The first line is 6; the second line is 28; the third line is 496, the fourth line is 8128; and the fifth line is a blank space, with many numbers with white light floating and flipping on the surface of the plate.

Jiang Chen was very excited at this time because it meant that his mathematical knowledge in his previous life had a place to be used. He knew very well what these numbers mean.

The perfect number mentioned by the Demon Saint Ancestor is the complete number called by later mathematics. The sum of each divisor of this number is exactly equal to itself. The two most typical numbers are 6 and 28. The divisors of 6 are 1, 2, 3, and the sum is exactly 6.

The divisor of 28 is: 1, 2, 4, 7, 14, and the sum is exactly 28.

The immortal world highly respects the two numbers Six and Twenty-Eight. It can be seen that Buddhism has always been rumored that there are six realms of reincarnation, and Taoism has always been rumored that there are twenty-eight constellations in the sky.

The third complete number is 496.

The fourth complete number is 8128.

The fifth complete number is very large, 33550336, which is already in the tens of millions. So no wonder the former sect leaders of the Heavenly Demon Sect have never been able to comprehend the mystery. Even mathematicians in later generations have taken thousands of years to find it.

The reason why Jiang Chen can know this knowledge of complete numbers is because he was very fascinated by mathematics when he was in high school and read a lot of interesting mathematics books, so he understands these allusions. And he can remember the complete number 33550336 because this number is exactly the same as his phone number, so he can remember a number that is not bad.

He thought to himself that before him, there must have been several former sect leaders who have reached the point of solving the problem, but they must have been unable to solve the fifth complete number, so they have never been able to understand the mystery. But by chance, this is a very difficult mathematical problem for others, but it can be easily solved.

"This Demon Saint Ancestor has a weird temper. He has a problem with his junior disciples. He is really worthy of being an old monster in the Demon Sect... I didn't expect that this would make me cheaper..."

Jiang Chen gusted in his mouth, and then he used his spiritual sense to control the numbers flashing light on the Demon Order, forming the number 33550336 in the blank space of the fifth line...

He had just sorted the numbers together, and there was only a loud "boom". The Demon Order emitted a brilliant colorful light, so bright that he didn't dare to open his eyes.

After a long time, the light gradually dimmed, and Jiang Chenfang opened his eyes tremblingly.

At this time, he discovered that there was a big opening on the tablet where the question appeared in the Demon Order.

Jiang Chen penetrated his spiritual consciousness into it, but found that it was empty inside and nothing. The material inside was the same as the outside, and it was also crystal clear, except that it had a black luster, nothing was different.

"Damn, there are no words or pictures engraved on this Demon Order, there is nothing inside, there is no mezzanine, or some regular patterns... Who can guess what its mystery is?" Jiang Chen couldn't help but say dejectedly.

He sat on the cushion and stared at the Demon Order for a moment, Fang murmured: "Or, I'll put something in and see if there is any change."

So, without stopping, Jiang Chen immediately picked up a tea bowl from the table and put it into the Demon Order from the opening at the top.

As soon as this thing was put in, it changed immediately.

I heard a sound of "guru, guru" from the Demon Order, and the tea bowl seemed to be churning and melting inside.

As the sound rang out, the black luster it emitted seemed to dim a little... After a moment, a pile of clay suddenly spit out from the opening of the top of the Demon Order.

"Huh! Clay?" Jiang Chen was so surprised when he picked up the clay.

"From the color of this clay, it seems that it is the color of the tea bowl I just put in. It seems that the Demon Order of Heaven has restored it!" Jiang Chen soon discovered the mystery.

In order to verify whether his ideas were true, he put in a rag and a cotton shoe in succession.

As expected, the result was that after the rag was put in, it was silk thread, and after the cotton shoes were put in, it was cotton and silk thread. However, every time the thing was restored, the luster of the Demon Order was dimmed a little.

"It seems that this Demon Order has a restore function for ordinary items. I don't know if it is effective for spiritual objects! I'll try this 'Yuhuang Pill' again!" Jiang Chen said excitedly.

Yuhuang Pills are a pill that can improve the cultivation of cultivators in the early stage of Qi refining. They are the most common big-way product. However, Jiang Chen has only got two pills in this year. He used one pill when refining Qi and transforming into a god and condensed the soul, but now there is only one pill.

After hesitating for a moment, he took out the remaining Yuhuang Pill from his storage bag and put it in. After all, he really had no other pills around him, so he could only use this one. Thinking of this, he was still very painful. You must know that he would have to work for a month to get the spirit stones needed to buy this Yuhuang Pill.

I heard a "gululu" rumbling sound, and the Heavenly Demon Order vibrated for a long time.

When it stopped, seven or eight herbs and some medicinal powder were sprayed out from it. It seemed that it was the ingredients for making Yuhuang Pills.

Jiang Chen carefully checked it, sniffed it with his nose, and confirmed that it was indeed a real herb and medicinal powder, he already had a bold idea in his mind.

There was also a piece of Yuhuang Pill in his pocket, which was picked up when cleaning the alchemy room this afternoon. He put it in his pocket and originally planned to throw it away together when he was taking out the trash, but he didn't expect that he was caught by the old monster in the devil next to the ravine, so he hadn't had time to throw it away yet.

After swallowing his saliva, he also put the Yuhuang Pill in his pocket in his pocket and thought to himself that if this Heavenly Demon Order could restore the elixirs to herbs and powder, it would be a real treasure.

After the use of the waste pill, the Demon Order still made a "gulp" sound of decomposition. After a moment, seven or eight herbs and several kinds of medicine powders were sprayed out from it. The Demon Order's luster became even lighter.

Jiang Chen compared these medicinal materials with the intact Yuhuang Pills that were sprayed out after decomposing these medicinal materials, and found that the two were exactly the same. It seems that the decomposition and reduction function of this Heavenly Demon Order is irrespective of the quality of the things.

This amazing discovery made Jiang Chen feel surprised. He suddenly realized that this was indeed a treasure! And it was a treasure that was so magical that it could not be more amazing.

A thought flashed through his mind: If he learned alchemy, wouldn’t he have a steady stream of elixirs to take? Anyway, he is not afraid of waste of refining.

You should know that the success rate of alchemy is very low. Even a high-level alchemist has only 20% or 30% of the success rate of alchemy. Behind each finished pill, there are several times the waste pill and waste medicinal materials that are several times more than it.

If I use this Heavenly Demon Order to replace all the waste elixirs with materials and refine them again, wouldn’t I have a 100% chance of alchemy success? This is a height that no matter how advanced alchemist is, it cannot reach!

Jiang Chen was so excited that he couldn't wait to try it in the sect's alchemy room. But when he was about to open the door, he suddenly calmed down.

He thought to himself that he is now a typical three-no-person: one without alchemy cauldron, two without alchemy recipes, three without alchemy techniques, and there is no way to refine alchemy.

It seems that you can't be too hasty, so you should find a way to earn some spirit stones first! Jiang Chen knew in his heart that in the world of immortal cultivation, it was as realistic as on earth. Without spirit stones, it was hard to move forward without spirit stones. Alchemy cauldrons, alchemy recipes, alchemy materials, and renting sect's alchemy houses all require spirit stones. He is now poor and idle. Since he is just a registered disciple, the sect will not send spirit stones. The ten spirit stones he had finally saved were also replaced by a year of servitude.

"Here! Since this Heavenly Demon Order can restore the waste pills, then go to the valley where the garbage is thrown out and find some precious pills to restore. Wouldn't you get rich? You should know that like those pills suitable for the foundation-building cultivators, the medicinal materials needed for refining can sell a lot of spirit stones!" Jiang Chen was immediately excited when he thought of this.

He then quickly rushed to the valley where the garbage was dumped, and found waste pills such as Ru Jingqi Dispersion, Condensation Dispersion and other waste pills suitable for the foundation-building cultivators to take, and then took them back and used the Heavenly Demon Order to restore and decompose them. However, he was surprised to find that there was no change in what these waste pills would look like when they were put in and what they would still look like after they were vomited out.

"How could this happen?" In amazement, Jiang Chen was thinking about why this situation happened.

"It seems that there are only two reasons. Either the level of this pill is high and the Demon Order cannot be restored, or the useless pills have been discarded for too long and cannot be restored!" Jiang Chen secretly guessed.

In order to confirm his thoughts, he went to the valley again and collected dozens of waste pills to return to the room. There are six types of pills, suitable for cultivators from the early stage of Qi refining to the late stage of foundation building to take when they improve their cultivation. Moreover, there are those that were refined today, and those that were refined yesterday or even a week ago, a month ago.

After a long test process, Jiang Chen ran to the valley where the garbage dumped more than ten times, and he finally got the function of the Demon Order almost thoroughly.

Jiang Chen discovered that it has the following features and functions:

First of all, this Demon Order does have the function of restoration, that is, restore the refined and synthesized items to their previous state. For example, the waste pill is restored to medicinal materials, and the tea bowl is restored to clay.

However, this restore is not without restrictions, it can be restored infinitely. It can only be restored once, but cannot be restored continuously.

For example, it can reduce the waste elixir into medicinal materials and medicinal powder, but it cannot restore the reduced medicinal powder into a living herb; it can reduce cotton shoes into cotton thread, but it cannot restore the reduced medicinal thread into cotton.

Secondly, the restoration of the Demon Order also consumes energy. He found that after each item is restored, the luster of the Demon Order will be dimmer. Ordinary items like cotton shoes and tea bowls consume very little energy, which can be ignored. However, spiritual objects like elixirs consume a lot, and the higher the level of the elixir, the more energy it consumes.

For example, the most basic Yuhuang Pills need to be restored to more than a hundred pieces before the Demon Order will lose all its luster and energy will be eliminated. However, if it is a more advanced Qi Yang Pill, it is only enough to restore dozens of pieces. As for the elixirs such as Qi Gathering and Qi Condensing and Qi Condensing that are suitable for the monks in the Foundation Establishment stage, it cannot be restored at all. Jiang Chen estimated that this should be caused by the insufficient energy in the Demon Order.

Jiang Chen has never discovered a way to recover the energy in this Demon Order so that it can quickly restore its luster.

The current situation is: every time the energy contained in the Heavenly Demon Order is exhausted, it will have to wait a whole week before it will automatically recover its energy.

"Now it seems that the recovery of energy from the Demon Order depends on his own slow absorption of spiritual energy from heaven and earth. If I could find a way to replenish the energy of the Demon Order, it might be able to play a greater role!" Jiang Chen naturally would not believe that the Demon Order could only restore low-level items such as Yuhuang Pills and Yangqi Pills. If this is true, the founder of the Demon Sect, the Demon Saint Ancestor, would not have regarded it as a treasure and passed it down as a token of the leader.

However, now he has a low cultivation level and knows very little about the knowledge of immortal cultivation. If he wants to study the secret of the Heavenly Demon Order, he can't find out in a hurry.

"Forget it! I'm still early to build the foundation anyway, and I've just entered the ranks of immortal cultivators. Let's talk about it until then!" Jiang Chen sighed, put the decomposed materials and the Demon Order into the storage bag, and put them away.

"Go and earn some spirit stones first! Otherwise, there will be no alchemy cauldron or pill recipe, and you can't afford the cost of renting an alchemy house. You can't even refine a lot of pills!" he thought to himself.

Although he now has some medicinal materials that decompose waste pills, he still dare not sell them. Because he wants to keep these medicinal materials for future alchemy use, he can only find another way.

Jiang Chen thought about it and had already broken through to the first level of the Qi Refining Stage. Not only did he have magic power in his body, he could also use some basic ghost magic such as soul control and corpse control techniques. Then he could catch some ghosts and hand them over to the sect in exchange for spirit stones. This was much faster than being a serious man.

He has only learned one spell - soul control technique. This is still the benefit of the sect to each new disciple when he was in the beginning. In the future, if he wants to learn new spells, he has to use the spirit stone to buy the copied jade slips at the Sutra Pavilion. Although the cost is not much, it is also a big deal for a poor and innocent registered disciple like Jiang Chen.

"It seems that I need to go to Tianmo Valley!" Jiang Chen thought to himself.

The place where he planned to catch the ghost was within a radius of thousands of miles, located on the west side of the mountain gate of the Heavenly Demon Sect, and was famous for its ferocity and danger.

According to legend, more than ten thousand years ago, this place was a decisive battle in the battle between the righteous and the demons. The two sides of the war invested millions of monks and hundreds of millions of mortal troops. That battle was so dark that the sky was dark, the sun and the moon were gone, the corpses were everywhere, and blood was flowing into a river. From then on, there were often ghosts and wolves howling here, and ghosts and evil spirits could be seen everywhere at night, and zombies and skeletons wandered around.

The levels of ghosts and zombies are divided into ghost soldiers, ghost generals, ghost generals, ghost commanders, ghost kings and ghost emperors, which correspond to the Qi Refining Period, Foundation Building Period, Golden Elixir Period, Nascent Soul Period and God Transformation Period of the Immortal Cultivator respectively. It is said that in the deepest part of the Heavenly Demon Valley, there are even ghost commanders and ghost kings, but few people have seen it because everyone they see is dead.

Therefore, Jiang Chen did not dare to enter the depths of the Heavenly Demon Valley, so he could only go to the outermost place called the Crow Ridge Cemetery, which was a rare place to gather low-level ghosts. Although there were many ghosts, there was not even a ghost of a high-level ghost soldier. Most of them were primary ghost soldiers in the first to third levels of the Qi Refining Period.

Those disciples of the Heavenly Demon Sect with low cultivation and some qi-refining cultivators in the Han Dynasty who practice ghosts in the ghost realm will mostly go there if they want to capture ghosts.

After Jiang Chen learned about this situation from others, he was very suspicious whether the Crow Ridge cemetery was deliberately set up by the Demon Sect, which was specially used to hone the ghost-catching place for disciples of the Qi Refining Stage of this sect.

He was cautious and asked people in detail before going to find out the essential props needed to catch ghosts, such as ghost ropes, ghost hunting nets, raw meat to attract ghosts, etc., all of which were available.
Chapter completed!