The spirit stone mine is the siltation of the spiritual veins underground.

Just like the underground river, the spiritual veins sometimes deviate in the geological changes, and the "river channels" left by the displaced spiritual veins may form unique remnants and crystals, which are spiritual stone mines.

Mining spirit stone mines, generally produced are some low-level spirit stones, only the original strong spirit veins left by the "river", it is possible to mine high-level spirit stones, and this spirit stone mine, once it appears, will inevitably cause all parties to covet, force and power are not strong enough, is unable to occupy high-grade spirit stone mines.

Low-level spirit stone mines generally produce first-, second-, and third-order spirit stones.

These spirit stones are also the most widely circulated now, and the conversion relationship between them is based on the Baizhen system, and then there are slight differences because of the different realities in various places.

One third-order spirit stone is equal to one hundred second-order spirit stones, and one second-order spirit stone is equal to one hundred first-order spirit stones.

However, once the spirit stone reaches the fourth order, this conversion relationship will not work.

The fourth-order spirit stones and above are called medium and high-level spirit stones, which have withdrawn from the scope of general currency circulation, or exist as a form of large-scale currency, or as an indispensable high-level energy consumable, or as a high-level refining material.

How many third-order pieces can be exchanged for a fourth-order, there is generally no fixed number, this conversion relationship is fluctuating, for a period of time, the production of medium and high-level spirit stones is scarce, then this exchange rate will soar sharply, and the countermeasures will decline.

The spirit stone mine and magic crystal ore (magic spirit stone) that Su Cheng found in the underground Grand Canyon have not been mined yet, and they don't know what the specific quality is, but eighty or ninety percent of them are this kind of low-level mineral deposits.

Therefore, Mi Guangcheng didn't care at first, this kind of spiritual mine, there are four or five in the hands of the Mi family, and there is a large amount of production every day and every month to meet the needs of the family's increasingly huge expenses.

If this spiritual mine was really in the interior of the Qixia Sect, or in the northern frontier, he wouldn't be so indifferent, but it was in the Netherworld Ghost Swamp, even if it was discovered and possessed, what was the use?

But it's different for Su Chengcheng, this spirit stone mine and magic crystal mine must be mined no matter what, Mi Yue's dowry is just a foreign fortune, and the income of several shops and Lingtian is strictly speaking, it is also Mi Yue's personal, subsidizing himself with his wife's body, how can Su Cheng do such a tasteless thing?

And compared to his plan, this point of interest is undoubtedly a drop in the bucket, whether there is waiting or not, it is not of much use.

Mi Guangcheng turned around three days ago, and the top of the underground canyon had become unrecognizable.

If he hadn't seen the prospect of demonic energy and non-existence, he would never have been able to associate this botanical garden blooming underground with it.

A huge net of vine stems has completely covered the underground canyon, and the strange vegetation with black and emerald green grows in the dark soil and rocks, unknown and strange fruits and flowers are in full bloom, and the air is filled with the fragrance of grass and fruit powder.

A large number of ghosts floated among them, and a huge gourd hung upside down in the dome.

Between the giant net and the gourd, the huge beehive like the mountain peak has been woven layer by layer, and the thick cane that extends from it is almost complete and without gaps, and the thick cane that extends from it has taken on a slight glow of metal, dark and tangled, like an iron chain, and like a giant python.

When he arrived, Su Cheng immediately sensed it.

But after waiting for a while, it flashed in front of him.

"These can already be advanced into spiritual objects!" Mi Guangcheng said, pointing to the giant net and dense vegetation, "When it comes to evolving all things, Your Excellency's supernatural powers are really breathtaking. Our monks can't do it. ”

Su Cheng's body was distressed by the increasing depletion of the sedimentation tank and the deduction of the space array, and he had spent a lot of energy, so he had no interest in accompanying Mi Guangcheng's nonsense.

"Something to bring?"

Hearing this, Mi Guangcheng took out a large storage bag of 100 square meters and poured it down in front of Su Cheng.

A large number of fourth-order spirit stones were piled up into a small mountain, as well as all kinds of rare materials, all of which were necessary to construct a constant teleportation array.

"Such a teleportation array requires materials with a total price of 100,000 spirit stones, and every time it is used, it is expensive. Is it worth it, Your Excellency?"

Su Chenglai distinguished from him, "What about absenteeism?"

Mi Guangcheng was helpless, took out another storage bag, and poured out ten very strange puppets from it.

These mechanical figures have rock-made bodies, half a man tall, with thick limbs, all short and thick, with their feet firmly and forcefully grasping the ground, and they should be able to walk freely on the cliffs of the canyon, and their huge and long arms are like two shovels, and their fingertips are almost attached to the ground.

The skull was a rudimentary diamond-shaped, with no facial features, and only two fourth-order spirit stones were inlaid in the position of the eyes.

In addition, the whole body is covered with dense "patterns", and when Su Cheng saw it, he thought of the integrated circuits of the earth.

Just the two fourth-order spirit stones I saw were worth a lot of money, which showed that this thing was fundamentally different from the one-time servants such as the Spiritual Force Soldiers and Fu Seal Lux used before.

“…… Normal spirit mines, with barbarian absenteeism, can be regarded as high-quality and cheap, but it is not difficult to purchase barbarian absenteeism, the difficulty lies in how to transport it, and it does not attract the attention of the owner of the ghost swamp...... As a last resort, you can only use puppets...... However, the demonic energy of the canyon has a great corrosive effect on these delicate things, and these ten second-order rock puppets are the ones I have scavenged with the best of my might......"

Su Cheng didn't have the heart to listen to what Mi Guangcheng said.

His first encounter with real puppetry, which gave him endless inspiration.

Maybe......

Just like the improvements that can be made in terms of space, in terms of puppets, Su Cheng has great potential, and there are many things that can be studied and improved.

"Are there higher-level puppets?"

Mi Guangcheng was stunned for a moment, thought about it, and released a huge mechanism man with silver glitter.

This machine man is not the gray ten on the ground, but standing in the air, the whole body, the silver metal reflects and shines, streamlined, like a praying mantis, giving people a huge sense of oppression.

Or two thick forelimbs.

One holds a huge bladed sword.

One holds a huge shield.

A pair of cold and red eyes, looking at Su Cheng majestically, the abundant spiritual power floated, making his surface evaporate with a misty mist, and after a while, his body was already half hidden and half visible.

"This is a silver-clad puppet, a fourth-order creation, with strong combat effectiveness, and ordinary foundation building monks are tough and can't support it for long in front of it. At the same time, it is also the signature force of the top Xiuzhen family, and the military formation formed by them is to open up the sharp cone in the war, and I don't know how many different species are hated by their combined force. ”

"Okay, good, good!" Su Chengxi couldn't help but be happy, "I'll borrow these things for a few days, and these spirit stones and materials will be calculated for you with interest!"

"Your Excellency...... As if you have the confidence to win?"

Su Cheng didn't answer, and had already started to pack up the spirit stones and materials on the ground.