After another three days, all the materials for the defense array are ready, and it is time to show the real technology.

Monument Square is located in the center of the old A base, and the monument is the center of the square, which is suitable for the formation eye.

On this day, the Monument Square was cleared, and the idlers could not stay, and there were heavy guards outside.

Yuxi was wearing a Xuan robe, with his long hair, he really had a bit of an immortal appearance. The chief and deputy captains of the nine detachments stood in a circle around the monument to help him protect the Dharma. The defense array is a confidential matter of the old A base, and the people who know exactly are limited to the captains and deputy captains of the nine detachments, and even if the others are involved, they don't know about it.

Yuxi set up the array plate, inserted the array flag in the corresponding position according to the gossip diagram, and then picked up the brush on the ground that was taller than himself. In front of him was a huge skull filled with blood cinnabar. Blood Vermilion is a vermilion mixed with the blood of several fifth-level alien beasts, and its spiritual power is very abundant.

He flew into the air, the huge pen in his hand kept waving, drawing one line after another on the ground, a complex pattern gradually took shape, half an hour, the blood vermilion sand was used up, and the formation was also finished.

Then, he placed eight more fourth-level crystals in eight predetermined places, marked them with runes, and the crystals disappeared in place as if they had never existed......

Yuxi picked up a fourth-level crystal and stood in front of the monument, this is the last step of the formation, as long as the crystal is buried under the cornerstone of the monument, the formation can be activated, at the same time, the nuclear war shelter three hundred meters underground in the headquarters, Qiao Lan also took a fifth-level crystal and slowly walked to a groove in the middle of the shelter, and around it was the formation drawn by Yuxi......

The formation of the monument is just a cover to cover people's eyes, the real defense array is set up in the command headquarters, and the formation is in the nuclear war shelter, everything is arranged by Yuxi in advance, Qiao Lan only needs to complete the last step at the same time as him, bury the eye of the formation, and activate the formation.

This trick is the result of Qiao Lan and Yuxi's discussion, and Qiao Yan also knows it, but he doesn't know that the crystals they really use for the formation are all fifth-level, and the crystals used as the eyes of the formation are the crystals of the fifth-level snow wolf, the peak of the fifth level.

The fourth-level crystal was sealed into the monument, and the fifth-level peak crystal also smoothly entered the groove, and a majestic aura stirred up in the old A base, which could not be seen or touched, but it gave people a very subtle feeling. The majestic qi spreads outward, spreads, spreads with lightning speed...... Out of the old A base, continue to radiate, until the distance of twenty kilometers before stopping.

The defense array was very successful, with the old A base as the center, forming a circle with a diameter of twenty kilometers, and within the circle, the alien plants became quite docile, and the alien beasts migrated far away.

The captains of each detachment personally ran out of the base to check, and the wood-based abilities found that they could get close to the alien plants and no longer resist them, and the captains with the wind abilities used their abilities to run out in one go, and when they returned, they told others about the movements of the alien beasts.

After confirming the magic of the defense array, the captains couldn't help but feel very convinced, and when they looked back and saw Yuxi and Qiao Lan, they smiled one by one, just like winning the big lotto.

The captains were overjoyed, but they didn't expect that there were even bigger surprises waiting for them.

Qiao Lan and Yuxi grabbed a handful of soil and took a closer look, to be honest, they really couldn't see any difference, just as the captains came over, Qiao Lan said to Qian Xuejia, "Uncle Qian, you can arrange a soil sample test to see if it is suitable for planting." ”

"No, you can't plant. Soil testing will be done every year!" Qian Xuejia's tone was full of helplessness, "It was completed three months ago this year, and each gram of soil contains 160 million violent factors, according to laboratory tests, unless it drops below 100,000, there is no way to plant it naturally, that is still the minimum, beyond this limit, the seeds will mutate......"

Qian Xuejia tried his best to make his expression easy to understand, and if he really wanted to put out the laboratory set, it was estimated that no one would be able to understand, but Shi Meng was impatient first, grabbed a handful of clay and squeezed it into a ball and slapped it into his hand, "Don't say so much, let you test it, now we have a defensive array for this time and that time." ”

As soon as Shi Meng's words fell, he saw the others looking at him with shocked faces, and he was also blinded, even if he used idioms indiscriminately, he wouldn't look at him like this, besides, he didn't say idioms......

After reading Shi Meng, the captains looked at Qiao Lan one after another, hoping that she could confirm what they had hoped for.

"The Great Defensive Array can not only isolate the violent factors in the air, but also purify ......"

"Net ...... Purify ......" The captains looked confused, and some people were puzzled, "What's the use of purification?"

"Purification means that the content of violent causes in the soil will gradually decrease, and it may drop to less than 100,000, what do you say is the use of purification?" Li Changzhan smiled, he had long known that Yuxi was a fifth-level Buddha ability, and he would also arrange an enchantment, so he accepted the formation without any pressure, Huaguo is the only one, hehe, only our old A has it, hehe......

"Ah!!" There was an uproar at the scene, Qian Xuejia had already gotten into a jeep like a wind, and he wanted to immediately arrange for people to take samples in various places.

Soil samples were continuously sent to the laboratory, and Qian Xuejia plunged into the soil sample test with a group of men, forgetting to sleep and eat, not only him, but also other captains were nesting in the main building, just to know the results for the first time.

Early the next morning, the excited Qian Xuejia rushed out of the laboratory and shouted frantically, "Less, less, less!"

Five percent of the soil sample, each of the violent factors of the content has different degrees of reduction, and the closer to the base, the greater the reduction, one of the soil violence factors of the amount of less than 100 million, although it is still far from the cultivation standard, but this is a phenomenon, a very good phenomenon.

More than a dozen captains held the test report like a book from heaven, and they couldn't understand it, but they were happy in their hearts, and Qian Xuejia's explanation was as beautiful as heaven. The reduction of the violent factor means that sooner or later the soil will return to normal and can be replanted.

Qian Xuejia was so excited that he couldn't help himself, and there was a circle of people listening to it with relish.

Shi Meng quietly tugged at his vice-captain Zhang Kele.

Zhang Kele didn't know why, but when he saw the captain signaling him to go out, he had to follow him and walk out quietly.

When he went out, Shi Meng immediately ran up without touching the ground, and ordered Zhang Kele by the way, "Let the brothers gather at the south gate and call more people!"

"Ah?!" Zhang Kele was even more blindfolded, well, how could there be a feeling that the horn of war had been sounded. He touched his head, and as the captain said, he quickly returned to the barracks of the second detachment and pulled more than a thousand brothers to the south gate. Later he learned how wise, bold, and wise his captain was, and he did not hesitate to describe his wisdom in the best words.