I can gather experience beads

After Cao Rui completed the 0th-order magic array, he had already completely imprinted the details and engraving techniques of these basic magic arrays in his mind.

What is lacking is only the spiritual power which is the main source of power for engraving.

If Cao Rui is currently in the Golden Core realm, the power of his spiritual consciousness will skyrocket.

Cao Rui had no doubt that he could complete the engraving of a Lingyin jade pendant in just a few moments.

"Seven minutes is not the upper limit. After adapting to the newly increased spiritual power, it should be able to be compressed to about five minutes."

After thinking about the large number of pre-sale orders of Lingyin jade pendants that had yet to be delivered, Cao Rui continued to bury his head in seclusion.

In this way, a few days later, Cao Rui successfully increased the engraving speed of another jade pendant to one every five minutes.

If you carve Lingyin Jade Pendants for six hours a day, you can carve out 144 Lingyin Jade Pendants.

At this rate, the day when Cao Rui delivers all the pre-sold Lingyin jade pendants won’t be long.

This day.

Ye Yunyin returned to the training tower in Qinglingfang City with the purchased materials for the Lingyin jade pendant.

"This time, a total of 17,000 pieces of Lingyin Jade Pendant materials were purchased." Ye Yunyin said.

Fifty thousand spirit stones were used to purchase seventeen thousand pieces of materials, and the average price was less than three spirit stones. Ye Yunyin did a good job indeed.

With this batch of materials plus the previous batch, Cao Rui can refine about 40,000 Lingyin Jade Pendants, so he doesn't need to purchase materials for Lingyin Jade Pendants in the short term.

However, Cao Rui remembered Wu Qingxuan's words. Setting up signal towers in the future would consume a huge amount of spiritual pattern crystals.

For Lingwen Xuanjing, it is better to find a suitable purchasing channel as soon as possible to feel at ease.

"Elder Ye, thank you for your hard work this time. You helped me a lot."

"You are going to the central part of Yunzhou this time. Do you know the storage amount of Lingwen Xuanjing in the central part of Yunzhou?" Cao Rui asked.

Upon hearing this, Ye Yunyin took a sip of the spiritual tea that Cao Rui had just brewed.

Then he said, "In the central part of Yunzhou, the number of materials books on spiritual pattern black crystals on the market is not much more than that in the southwest of Yunzhou."

"I almost ran into trouble when I made my first purchase."

"I was also lucky. I found a cultivation family in the eastern part of Yunzhou."

"This family is holding a spiritual pattern black crystal mine."

"But although the Spiritual Pattern Mysterious Crystal is rare, it is rarely used in the world of immortal cultivation."

"So that immortal cultivation family didn't take it seriously."

"After knowing that I purchased the Spirit Pattern Black Crystal and had a sales channel, they took the initiative to find me and completed the transaction. The price they gave was fair."

After hearing Ye Yunyin's words, Cao Rui realized that the spiritual pattern crystals purchased by Ye Yunyin came from the eastern part of Yunzhou.

Yunzhou can be roughly divided into four areas: northern Yunzhou, central Yunzhou, eastern Yunzhou and southwestern Yunzhou.

Among them, the central part of Yunzhou is undoubtedly the richest area. In ancient times, it was also a place with numerous spiritual veins.

The eastern part of Yunzhou ranks second among the four regions of Yunzhou.

In the Endless Sea in the east of Yunzhou, there is a Ten Thousand Islands area with tens of thousands of islands of various sizes. The islands absorb spiritual energy from the depths of the Endless Sea, and the spiritual energy is relatively abundant.

These islands are important resources for the immortal cultivation world in the eastern part of Yunzhou.

"How powerful is this immortal cultivation family? How is the mining situation of the Lingwen Xuanjing Mine that they control?" Cao Rui asked.

Ye Yunyin replied: "I have done some research. There is a foundation-building cultivator in this immortal cultivation family, and this family is related to the Xuantian Zhenzong, a sect in the eastern part of Yunzhou."

"From the tone of the young man I met, the Lingwen Xuanjing Mine should not have been officially mined yet."

"Of course, all transactions between them and me were conducted at a base they set up in the central part of Yunzhou."

"For the specific situation, we have to go to the eastern part of Yunzhou to understand it more clearly."

Cao Rui nodded slightly.

Although it is a bit far, at least we know the origin of the spiritual pattern crystal.

After thinking about it, Cao Rui asked Ye Yunyin for the contact information of this immortal cultivation family.

I plan to go there in person when I have some free time in a few days to discuss the business of Lingwen Xuanjing with this family.

If one wants to promote the Lingyin Jade Pendant throughout Yunzhou, the consumption of Lingwen Xuanjing will be enormous.

in this way.

In the blink of an eye.

Three months have passed.

During this period, another year passed in the outside world, and Cao Rui was already 29 years old.

It took Cao Rui more than forty days to finally upgrade the Bailu Pill to perfection, and he also perfected the Yimu True Fire Alchemy Technique.

The perfect level of Bailudan has a 70% success rate in alchemy.

Coupled with the bonus of the perfect level Yimu True Fire Alchemy Technique and the third-level alchemy furnace, Cao Rui has been able to achieve a 100% success rate in Bailu Dan.

All the materials for the seven hundred Bailu Pills were refined, and about one thousand seven hundred Bailu Pills were obtained, which supported Cao Rui's advancement to the third level of foundation building.

After advancing to the third level of foundation building, the Divine Yuan Jue showed its power again, and Cao Rui's spiritual awareness increased by a full three miles, reaching a range of eight miles.

The strength of his spiritual awareness is already comparable to that of an ordinary cultivator at the eighth level of the Foundation Establishment Stage.

With the support of this powerful spiritual consciousness, Cao Rui was able to engrave one spiritual sound jade pendant every three minutes.

This time when he went out of seclusion, Cao Rui used all eleven hours every day to engrave the Lingyin jade pendant.

Finally, today I have completed engraving the remaining 30,000 or so Lingyin jade pendants. The materials for alchemy and refining on hand have been used up, so I can relax for a while.

"Promoting to the fourth level of the foundation-building period, a huge leap forward, the consumption of Bailu Dan has increased even more dramatically, a full five thousand pills are needed."

"However, I have 4,000 doses of Bailu Pills in my Palm of Heaven Bottle. In a year or so, the pills will reach the age I need. It won't be a problem if I have more pills."

"However, we still need to pay more attention to the seeds of the Fiery Sun Pill and other higher-level elixirs."

"The effect of Bailu Dan can only support me to the middle stage of foundation building at most."

Cao Rui thought about it, and when the time was right, he asked Danlingbao Pavilion for a batch of spiritual medicinal seeds for Lieyang Pill.

If it's just seeds, Danlingbao Pavilion should be willing to give them to you if you pay some price.

"In the past six months, almost all the cultivators in Qinglingfang City have gotten used to using the Lingyin Jade Pendant."

"Although it is still in the free period, some monks have already started to recharge their Lingyin points."

"Next, I will expand the communication range of the Lingyin Jade Pendant, and then the influence of the Lingyin Jade Pendant will be further expanded."

Cao Rui already has a preliminary idea for the operation of the signal tower. If implemented properly, the promotion of the signal tower will be easy and Cao Rui will not have to spend too much effort on maintenance.

However, the prerequisite for all this is to find enough spiritual pattern crystals so that the signal tower can start refining them in large quantities.

"It's time to go to the eastern part of Yunzhou and talk to that Xiuxian family about the Lingwen Xuan-level mineral vein."

Cao Rui expanded his spiritual consciousness and summoned Zhang Mo and Ye Yunyin.

Asking Zhang Mo to look after the market and the mines, Cao Rui asked Ye Yunyin to accompany him to the eastern part of Yunzhou.

Both of them readily agreed.

So, Cao Rui handed the small formation plate of the market town to Zhang Mo.

At noon, he summoned Heiyu and invited Ye Yunyin to ride with him to the eastern part of Yunzhou.