What is flow-through operation and what is sustainable development?

These yellow sand monsters were squeezed in by their companions one by one, and then killed by Lu Pingxi. During this period, Lu Pingxi also collected soul sand one by one. Those yellow sand monsters had a bad premonition and wanted to escape, but they didn't know about the yellow sand monster behind them.

The result was that the yellow sand monster behind squeezed the yellow sand monster in front and was killed. When it was his turn, he could no longer escape.

In just four or five hours, Lu Pingxi had collected thousands of soul sand, and all the yellow sand monsters nearby were slaughtered by him.

The strong wind gradually became smaller, the sandstorm was about to pass, and the yellow sand monsters also moved away with the sandstorm. In this way, Lu Pingxi stopped.

Black Cat Xuantu sighed: "Only you can use this method to collect the soul sand. It is impossible for ordinary foundation-building monsters to maintain a formation for such a long time, and there are still twenty-five ones."

Lu Pingxi began to remove the formations one by one, and he said: "I have added automated procedures to these formations, so I don't need to distribute too much energy to maintain them."

The little flower demon was confused: "Automation? Are you programming?"

Lu Pingxi said: "The principle is similar. Do you think those AIs really have wisdom? They are not binary, and they are not composed of countless 'if', 'yes', and 'no'."

Automation is not that difficult. In ancient times, people created those traps. Didn’t they just use the trigger device when the mechanism was created? If the conditions were met, they would be ‘yes’, and if they were not met, they would be ‘no’. As long as such steps were added, it would not be difficult to automate the formation.

The only difficulty is the long-term supply of spiritual energy. Lu Pingxi is best at supplying spiritual energy. After all, he has a special physique and can absorb any attribute of spiritual energy and then convert it into any attribute.

Otherwise, ordinary foundation-building monsters would not be able to maintain the fire-attribute formation for so long in this metallic dust storm.

The sandstorm gradually passed, and Lu Pingxi said: "Since the strong wind has pointed out the direction for us, then let's move in this direction."

The little flower demon and the black cat Xuantu both nodded. The black cat Xuantu said, "If there is a ladder leading to the twelfth floor in this direction, then it must have been occupied by the carnivorous monsters, right? Why don't we pretend to be carnivorous monsters first?"

It is not difficult to disguise. The three of them are very small, just put a larger carnivorous puppet shell.

Lu Pingxi said: "It makes sense. You still need to have necessary disguise. After all, we are not familiar with this place."

As he said that, Lu Pingxi released three three-meter-high giant wolf puppets. The three puppets were lifelike, exactly the same as real giant wolf except that they had no soul aura.

Black Cat Xuantu asked, "Is it a wolf again?"

Lu Pingxi replied: "Wolves are social animals, and their status among carnivorous monsters is neither high nor low. It is the best as a disguise."

Black Cat Xuantu nodded: "Well."

As he said that, one person, one flower and one cat penetrated into the bodies of the three wolf demon puppets, and then skillfully controlled the three demon wolves. They began to move in the direction of the dust storm blowing over.

The little flower demon said: "Although I don't have much experience in walking in the desert, I should not be wrong in following the direction of the strong wind. After all, we are still in the fairy tower after all, and the strong wind usually blows down from the upper layer."

Black Cat Xuantu asked: "What about the principle? Why do these ten-story winds come from the top?"

The little flower demon said: "Have you never heard of it? Any liquid gas will spread from high concentration to low concentration. The high-level spiritual energy is so rich that it will naturally spread to the non-rich bottom layer."

Black Cat Xuantu was a little confused. Are you talking about science to me?

Lu Pingxi said: "Okay, let's move in the direction first, but to avoid getting lost, I will leave small satellites and spiritual coordinates along the way."

Lu Pingxi had already stepped on the magic weapon gourd. Compared to walking on the ground, he had a broader vision in the sky. The black cat immediately jumped on the magic weapon gourd, and the little flower demon also landed on the magic weapon gourd.

She said: "There are too little wood-attribute spiritual energy around here, so I'd better save some of my spiritual energy. Anyway, you have a lot of spiritual energy, so you should take us to fly."

Lu Pingxi thought about it, then immediately added a fire-breathing formation at the end of the gourd. He said, "Since that's the case, then speed up. There is nothing in this desert, and it's not cost-effective to spend materials here."

Lu Pingxi immediately inputs spiritual energy, and the fire-breathing formation immediately ejects flames. The magic weapon gourd flies out with a whizz, with a very fast speed.

The little flower demon asked, "On the tenth floor, you should have obtained a lot of treasures, right?"

Lu Pingxi said: "Yes, after killing the Butterfly Tribe's patriarch, I got treasures, materials, elixirs, and some incomplete secrets that it had hidden for five hundred years."

"The incomplete secret?" Black Cat Xuantu became puzzled, "What are they?"

Lu Pingxi replied: "It's incomplete and most of them can't understand it, but there seems to be something recorded on a stone slab."

As he said that, Lu Pingxi took out the stone slab, and the little flower demon and the black cat immediately came over to check it. When the black cat saw that it was ancient text, it immediately said: "I have the knowledge inheritance, I'll take a look."

Black Cat Xuantu stared at the stone slab for a while, then said, "It seems that the relic is about, the location should be on the twelfth floor."

The little flower demon said, "I have heard of this. It is said that in ancient times, the eleventh to twenty layers were not deserts, but I don't know what happened. These ten layers were covered with yellow sand, so many ancient cities were buried by the yellow sand."

Lu Pingxi asked: "How will this help us?"

With his own cultivation qualifications, he didn't think these relics would be of any help to him. Anyway, it won't take long to go to the twenty-fourth floor.

The little flower demon said: "That's an ancient ruin. I can't say that there are any earth-shaking magic weapons, secret books, elixirs, etc."

Lu Pingxi asked back: "No matter how earth-shaking it is, it is just something left behind in the foundation-building period in ancient times. How precious will it be?"

"It's not like this, you won't understand it," said Black Cat Xuantu suddenly. "A long time ago, this immortal tower was only ten floors, and this tower was not a fairy tower for monsters to live in, but a place to suppress extremely ferocious and powerful monsters. At that time, the suppression of monsters was monsters that even immortals could not kill or were unwilling to kill. In fact, its power was extremely terrifying. Therefore, if the ruins left at that time could be dug up, it would be amazing."

Only then did Lu Pingxi understand the situation: "So that's how it is."

"But I can't find anything with a stone slab." said the little flower demon. "Otherwise, the ruins would have been dug out long ago, so let's think about the next itinerary."

They all nodded, and at this time, a colorful light suddenly appeared in the distance, which immediately shifted their attention from the stone slab.

"What is that?"
Chapter completed!