As for the demons below the Jindan stage, if they enter it, they will be directly refined, without exception, and the horror of the Demon Destroying Array can be seen.

"Fire Spirit, where did you get the spirit stones to buy these materials?"

Mu Chen asked incomprehensibly, the price of the materials for the Demon Destroying Array was comparable to the price of a natal supreme magic weapon, or even higher.

To put it simply, Mu Chen and the others gained a lot from their trip to the secret realm of the academy, but all of them could only be exchanged for a copy of the materials of the Demon Destroying Array.

Looking at the materials on the ground, there are at least two materials for the Demon Destroying Array here.

"Brother Muchen, don't ask so much, by the way, I can't depict this node of the Demon Slaying Array, you can help take a look. ”

The fire spirit's eyes dodged and changed the subject.

"Uh-huh, I'll take a look. ”

Mu Chen didn't ask much, and the two studied the Demon Destroying Array.

The formation attainments of the two of them had just been upgraded to the ordinary late third-order stage, and it was a little difficult to study the third-order peak demon slaying array.

When they encounter a problem, they try to solve it, and if they can't solve it, they ask the teacher directly.

Two days passed in a flash, and the wood dust and fire spirit successfully refined thirty percent of the Demon Destroying Array.

During the refining process, Mu Chen's soul strength was naturally promoted to the late stage of Jindan, becoming more condensed, and the speed of deducing the formation was even faster.

Just when the two of them wanted to continue refining, Ye Lao's voice sounded in Mu Chen's mind:

"The auction will start tonight, you sort out the lots, and I'll send them over now. ”

"Uh-huh. ”

Mu Chen also transmitted the sound, and explained to the fire spirit and walked out of the formation room, looking for Niu Er and the others.

"Brother Muchen, here's it, this is the thirteen bottles of Huiling Pill, one bottle of Explosive Spirit Pill, one bottle of Moshi Pill and a few other pills, and in this storage ring, it is the harvest of our secret realm. ”

Niu Er opened his mouth and handed the elixir and storage ring that he had refined in the past few days to Mu Chen.

"Mmmm, let's go and auction off that Fire Wood Year tonight and raise your Fire Wood Birth Bead to the early stage magic weapon. ”

"Hee-hee, okay, Brother Muchen. ”

Find Lingyun and pocket the items she has refined these days.

Looking for it in turn, Mu Chen came to the alchemy department and handed the storage ring to Ye Lao.

Ye Lao Lingzhi probed into the ring and said for a long time:

"There are a lot of things, but most of them are not of high value, and they can be sold for up to 40,000 high-grade spirit stones. ”

"Well, I'm sorry for your trouble, Ye Lao. ”

Mu Chen nodded, knowing in his heart.

Forty thousand high-grade spirit stones should be enough to raise sixteen people's natal magic weapons to the level of magic weapons.

"Three Foundation Building Secret Realm tokens should be able to sell 100,000 high-grade spirit stones, or even higher. ”

Mu Chen was startled, and immediately relieved, a year ago, more than 10,000 spirit stones were sold, and now that the foundation building secret realm is about to open, the price has tripled.

"Uh-huh. ”

Ye Lao left, and Mu Chen went to the formation division department.

Demon Extermination Array? This is the final hole card for the Muchen team to enter the Demon Secret Realm, once the refining is successful, as long as the Demon at the peak of the Cash Pill is not produced in the Xuanwu Foundation Building Secret Realm, it will definitely be safe and sound, and there will be a lot of gains.

Judging from the current progress, it shouldn't be a problem to successfully refine the Demon Slayer Array before entering the secret realm.

The wood dust returns and continues refining.

"Brother Muchen, the formation nodes here are carved here, so as to ensure the smooth and normal passage of the aura. ”

"Uh-huh, but if you shift it slightly to the left by a point, the output of the aura will be increased by one-tenth, and the overall power will be increased slightly. ”

"But if it is changed, will it affect the overall formation of the formation?"

"Try it, something goes wrong, stop immediately. ”

The wood dust and fire spirits were immersed in the refining of the Demon Slayer Array, unable to extricate themselves, ignoring all the sounds of the outside world.

It was eight o'clock in the night, and Ye Lao Chuanyin asked the sixteen people of Muchen to go to the gate of the school.

After the assembly, a group of eighteen people went to the Huanyu Auction Pavilion, and there was an extra fairy, Aunt Meng.

"See you again, Muchen and Lingyun. ”

Aunt Dream waved to greet everyone.

"Aunt Dream is good. ”

A few people walked out and saw the faces of many middle school students from Canghai Academy, and everyone's goal was to win the Huanyu Auction Pavilion.

The wide range of lots in this auction aroused the interest of students, in case they could auction a lot that they needed.

Some of the students went in groups, some went alone, and some were led by their parents.

In Xuanwu City, it was more lively than before, there were many faces from the foundation building period, and students from various universities and institutions poured into the streets one after another, and the students and monks from the foundation building period of the other nine cities had already arrived in Xuanwu City a few days ago, and they would not miss this auction either.

It was crowded and crowded.

Entering the auction pavilion, Aunt Meng led everyone into the two-person private room with her special identity, quietly waiting for the auction to open.

"Mu Chen, this is Aunt Meng specially selected for you some of the lots you may need, you can take a look, if there are not enough spirit stones in a while, you can ask me to borrow them." ”

"Thank you, Aunt Meng. ”

Sixteen people gathered together and began to watch.

The information in the Psion Tablet is very comprehensive, bringing together all the materials that the sixteen people currently need.

Thanks again to Aunt Ichibang, the auction is open.

"Welcome everyone to come and cheer, I am today's host: Lei Ling, I think you have already received the news, today's auction is an auction specifically for the foundation building period, let me reveal in advance? ”

The woman with a beautiful face took the stage and announced the start of the auction, arousing everyone's interest.

Sure enough, as soon as the nine foundation building tokens came out, the crowd below caused a slight commotion.

"Without further ado, please take a look at the first lot tonight: the second-order pinnacle material Black Feather Iron, with a reserve price of thirty spirit stones, and the bidding will begin. ”

"Black Feather Iron is extremely hard, suitable for refining defensive shields, and thirty spirit stones are too expensive to consider. ”

Muchen muttered, giving up.

The students in the foundation building period under the field were not interested, and the growth of one spirit stone and one spirit stone was finally won by a student from Canghai Academy with thirty-four spirit stones.

"The second lot: second-order pinnacle material: water amber crystal, the reserve price is thirty spirit stones, and the bidding begins. ”

Wood dust gives up.

Most of the first 20 or so lots are not of high value, and none of them were sold by Mu Chen and others.

The twenty-fifth piece of material aroused the interest of Mu Chen.

"The next lot is the third-order thunder: the thunder of Jindan, students who need to refine the thunder attribute magic weapon must not give up, the reserve price: three hundred spirit stones, start bidding. ”

The thunder formed when the Heavenly Dao was built to cross the tribulation is extremely difficult to capture, but once it is integrated into the thunder attribute magic weapon, it can make the magic weapon have the breath of the Heavenly Dao in advance, and the attribute is to a higher level, this should be the most suitable material for the promotion of the Wood Dust Thunder Spirit Bead.

"Six hundred spirit stones. "Wood Dust bids directly.

Uh, how can there be such a bid?

According to Mu Chen's estimates, the price of this golden pill thunder will not exceed six hundred.

Sure enough, after Mu Chen's bidding, no one bid, and after paying the spirit stone, the thunder of Jin Dan appeared in Mu Chen's storage bag.

"The next lot: Fire attribute third-order material: Mianyang Essence, the reserve price is three hundred and fifty spirit stones. ”

This material is suitable for raising the fire spirit bead to a magic weapon, and Mu Chen directly bid for eight hundred spirit stones and took it into his pocket.

Such a big deal has attracted the attention of many students.

In the next time, the sixteen people of Muchen bought a lot one after another, all of which were materials that were promoted to the natal magic weapon, and the prices varied, most of them wandered around more than a thousand spirit stones, and the most expensive was Niu Er's Huo Mu Nian, and two thousand spirit stones were bought.

Fire and wood are mutually restrictive, and they want to be of the same origin, which is very precious, so the value is extremely high, and Niu Er bought it with a heartache and handed it to Mu Chen.

"Brother Muchen, you must help me succeed in promotion, this price is too great. ”

"Uh-huh, okay. ”

"The next lot, a bottle of spirit essence, a total of ninety-nine drops, and a reserve price of two thousand spirit stones. ”

A drop of spiritual essence can restore the spiritual energy in the dantian of the early stage of the Heavenly Dao Jindan to full value, and there are no side effects, and its effect can be seen.

Mu Chen can release the attack for half an hour without any scruples, and the aura is not exhausted.

This bottle of spiritual essence is extremely valuable in the foundation building secret realm, and the following suddenly became hot, and they bid one after another:

"Two thousand five. ”

"Three thousand. ”

"Three thousand seven. ”

......

......

Looking at the rising price, Mu Chen gave up the bid, and this bottle of spiritual essence would definitely fetch a sky-high price. Sure enough, in the end, it was bought by the No. 10 private room at the price of 6,100 high-grade spirit stones.

Mu Chen and the others glanced at each other, expressing helplessness.

"Mu Chen, give it, a thousand spirit stones will be sold to you. ”

Aunt Meng took out a bottle of spirit essence from the storage ring again, put it in front of Mu Chen, and spoke.

"Huh?"

Mu Chen was shocked and opened, and there were a full ninety-nine drops of spiritual essence inside.

"Aunt Meng? ”

"Take it, Mu Chen, there is a spiritual eye in the City Lord's Mansion, and there is absolutely no shortage of spiritual essence. ”

"Uh-huh. ”

Mu Chen nodded, took out a thousand high-grade spirit stones and handed them to Aunt Meng.

"The transaction is complete, if you still need the spirit essence next time, remember to find me, a bottle of two thousand high-grade spirit stones. ”

"Uh-huh, okay. ”

This time, the foundation building secret realm is imminent, so Aunt Meng sold a bottle to Mu Chen and the others at half price.

With this bottle of spiritual essence, the journey to the foundation building secret realm, the safety of everyone will be raised to a higher level.

"The next lot?Complete third-order late defensive formation: Tianluo Formation, which can last for one hour under the full attack of the demons in the early stage of Jindan, the reserve price, eight hundred spirit stones. ”

This set of formations was refined by fire spirits, and it was finally sold for the price of 1,700 high-grade spirit stones.

"The next lot?Complete third-order late-stage attack formation: Fire Rain Array, which can kill the demons in the early stage of Jindan, the reserve price, 1,200 spirit stones. ”

This set of formations was still refined for the fire spirit, and it was finally sold for two thousand five high-grade spirit stones.

After a while, all the lots refined by Mu Chen and the others were sold, with a total value of more than 50,000 spirit stones, which was higher than Ye Lao's estimate.

With this batch of spirit stones, Muchen and the others had the confidence to continue to buy the lots, and bought some herbs and materials.

"The next lot: Foundation Building Secret Realm Token, with a reserve price of 10,000 high-grade spirit stones. ”

The audience was boiling, but most of the monks who shot were Jindan and Yuanying's parents, and how could the students of the "more than 10,000 spirit stones" get it?

In the end, this Foundation Building Secret Realm Token was sold for 33,000 spirit stones.