Chapter 141: The Heritage House of the Refining Institute

Spiritual Beast Sect.

Spirit Peak of the Refining Institute.

Cao Rui sat opposite Wu Qingxuan.

“I haven’t seen you for two years. You have successfully established your foundation. Not bad.”

“How many days will you stay in the Refining Institute this time?”

“Where do you plan to start?”

Cao Rui reviewed his previous achievements.

Basic Refining Technique (Level 0), Great Success.

Familiar with more than 20 Level 0 arrays.

Level 0 array engraving, entry.

After the foundation-building period, the spiritual consciousness increases greatly. Refiners can already start to learn the first-level arrays. In the late stage of foundation-building, they can even start to contact the second-level arrays.

Cao Rui has never come into contact with the first-level array.

Cao Rui’s experience in alchemy is that the foundation of Level 0 is also very important.

The knowledge of spiritual pills at the Level 0 foundation has laid a foundation for Cao Rui and is an important source of knowledge for Cao Rui to develop new pill recipes.

If you want to make innovations in refining techniques, the Level 0 foundation of refining arrays cannot be dealt with carelessly.

Cao Rui decided to take care of the 0th level foundation while learning the first-level array with Wu Qingxuan.

After Wu Qingxuan figured out Cao Rui's direction, he decided to take a few hours every day to teach Cao Rui the first-level array.

The rest of the time, Cao Rui learned to engrave the 0th level array on his own.

Of course, the Spirit Beast Sect did not have so many magic tools to refine.

But Wu Qingxuan had a way. He had a "metal plate" specifically for practicing engraving arrays.

This metal plate was an alloy made by Wu Qingxuan himself. It was cheap and could withstand the engraving of the array, but it could not exert the power of the array.

It was perfect for learning.

For Cao Rui, after discovering that engraving the array on this metal plate could also increase the experience beads engraved on the 0th level array, he decided to use this metal plate to accumulate experience in the future.

This day, in Wu Qingxuan's exclusive refining room.

Wu Qingxuan was explaining the knowledge of the first-level array to Cao Rui.

"Compared with the 0th order magic array, the first-order magic array is only half the size, but the difficulty is more than ten times higher. Without the powerful spiritual sense of the foundation-building stage, the Qi-refining stage will never be able to master it like mastering some first-order spells."

"Let me teach you the simplest first-order magic array, the 1st order [Ventilation]."

Cao Rui took the metal plate and began to engrave it with Wu Qingxuan.

Compared with the 0th order [Ventilation], the volume of the first-order [Ventilation] is reduced by nearly half, but the smaller volume carries more than twice the number of inscription lines.

Some subtle lines even need to be detected with spiritual sense, and cannot be seen with the naked eye.

Although Cao Rui has been following Wu Qingxuan's pace, and Wu Qingxuan has deliberately slowed down the engraving speed to facilitate Cao Rui's learning, even so, Cao Rui still inevitably made mistakes.

Finally, Wu Qingxuan succeeded in engraving, and Cao Rui directly threw the metal plate into the smelting pool to re-melt and eliminate the magic array and save it for the next practice.

The first-level array is not so easy to engrave.

"Hmm? Experience beads?" Cao Rui's heart moved.

Cao Rui suddenly found that the experience beads of the first-level array [Ventilation] appeared in his mind.

The first-level array no longer appears in a unified "0-level array engraving" way like the 0-level array engraving.

The more complex 1-level array than the 0-level basic array condensed an experience bead in Cao Rui's mind.

This further shows that the 1-level array is much more difficult than the 0-level array.

For ordinary cultivators, each 1-level array is extremely unique, and it takes more time to master it.

Cao Rui's heart moved: "Master Wu, how many first-level arrays have you mastered?"

Wu Qingxuan smiled slightly: "Yes, you have discovered the difficulty of the first-level array."

"In fact, because the array becomes more and more difficult to master as the level increases, the weapon refiner will helplessly concentrate the arrays he learns on the single digit in the end."

"I currently have five first-level arrays that I have fully mastered, but there are only two second-level arrays left."

"If you don't like the five first-level arrays I have mastered, forget it... Come to a place with me."

Wu Qingxuan suddenly stood up. Although Cao Rui didn't understand why, he still stood up and followed.

Wu Qingxuan took Cao Rui into the depths of the weapon refinery.

In an unnamed hall, there is a downward passage.

After entering the passage and walking down for a long time, a secret room surrounded by a simple warning array appeared.

Wu Qingxuan opened the secret room and took Cao Rui into it.

Cao Ru walked into the secret room, looked around slightly, and surprise flashed in his eyes.

The underground secret room here is more than ten meters high, and the room is brightly lit with light.

The most conspicuous thing is the magic array rune patterns that have been magnified several times on the four walls.

It evenly occupies about a quarter of the four walls, and there is still a large blank space on the wall.

Wu Qingxuan said: "There are a total of sixteen first-level magic arrays, nine second-level magic arrays, and four third-level magic arrays."

"This is the number of magic arrays passed down from generation to generation in my Spirit Beast Sect."

"Each magic array was carefully carved on the wall by the first learned weapon refiner in the sect and passed down. This room is also the inheritance house of our weapon refinery."

"If you learn a new magic array in the future, don't forget to leave your mark on the inheritance."

Cao Rui nodded vigorously: "Can I retreat here for a while and choose the magic array to learn?"

Wu Qingxuan gave a positive answer: "Of course, but if you want to learn a magic array that I don't know, without my guidance, the difficulty of learning will be greatly increased, you have to be mentally prepared."

"I understand." Cao Rui nodded in response, thinking that he had experience beads, and the difficulty of learning was not much different.

Cao Rui decided to condense the experience beads of these sixteen first-level magic arrays in one breath, and then slowly select first-level magic arrays for specialized practice based on his needs.

Wu Qingxuan saw that Cao Rui wanted to stay here to learn magic arrays, so he took the initiative to leave, giving Cao Rui time to study.

After Wu Qingxuan left, Cao Rui first looked at the names of the first-level formations on the wall.

Next to the formation runes, there are notes on the name and effect of the formation.

Cao Rui quickly found the formation rune he wanted [Remote Transmission].

The first-level formation [Remote Transmission] can transmit information over long distances.

It is a formation that most defensive formations need to be engraved to arrange the sound transmitter.

The communication software arranged by simply using the first-level array [Remote Transmission] is at least a first-level magic weapon, and the cost is too high.

In the 0-level array, there is also a similar array [Sound Transmission].

[Remote Transmission] is actually an advanced version of [Sound Transmission].

The distance of [Remote Transmission] is about 10-100 miles, while the distance of [Sound Transmission] is only 100 meters to 1,000 meters.

Cao Rui's idea is to use the first-level array [Remote Transmission] to arrange equipment similar to modern signal towers.

Then use the low-cost 0-level array [Sound Transmission] to refine 0-level magic weapon-level communication equipment and sell it to the majority of casual cultivators.

The entire southwest of Yunzhou is about 40,000 miles long and wide, about the size of three or four Chinese countries.

It is somewhat difficult to spread signal towers to the entire southwest, unless Cao Rui can develop a second-level [Remote Transmission].

But Cao Rui established a communication area with Qinglingfang City as the center and deployed signal areas in some important locations, which is still very easy.

For example, if you set up a signal area across the southwest of Yunzhou, you only need to deploy about 400 signal towers.