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Fengyun reached out and touched the place where the big stone had been cut into a piece of skin, and the delicate and warm feel made him nod slightly.

At the time of the double cold spring, in order to complete the missing piece of the labyrinth under the spring, Fengyun once replaced the passage in the labyrinth with a porcelain pipe, poured it into the spring water, and urged it.

In the end, although there were some twists and turns, there was finally no danger, which allowed him to get what he wanted, and at the same time, in the process, he also had some other gains, such as knowing that there were requirements for the materials to build the maze when running the maze.

The porcelain tube labyrinth will collapse, of course, because of its own incompleteness and lack of key parts, but it also has a lot to do with the lack of solidity of the porcelain tube.

If the porcelain tube is strong enough, the maze will definitely exist for a little longer, and it will not collapse so quickly.

In view of this, Fengyun has always been concerned about the carrying materials for the rebuilding of the double cold springs, because he knows very well that in order to successfully create another double cold spring, he must find suitable materials, otherwise not only will it not succeed, but it will also cause great danger and even disaster.

The last time he used the porcelain tube as a carrier, when it collapsed, it exploded with such a huge destructive power, if he really started to build an artificial double cold spring, once it failed, the destructive power would definitely be much greater.

While understanding the structure of the labyrinth under the Double Cold Spring Spring through the force of nature, Fengyun also had a relatively clear understanding of its scale, which was not a little bigger than the labyrinth he built with porcelain tubes.

According to his calculations, the area of the labyrinth under the double cold spring spring is at least a hundred times the area of the porcelain tube labyrinth.

Under normal circumstances, the difference in the destructive power caused by the two is definitely greater than the difference in their area.

Even if we take a step back, the destructive force they can produce is equal to their area, that is, if he fails to rebuild the double cold spring, the destructive force will be a hundred times greater than the destructive force when the porcelain tube labyrinth collapsed.

As long as he thought about the destructive power generated by the collapse of the porcelain pipe labyrinth, Fengyun had to be extremely cautious, and he would never act rashly until there was no suitable carrying material.

The destructive force generated by the collapse of the porcelain tube labyrinth last time did not cause much damage, it was entirely his own credit, and it was he who risked sending it into the air, otherwise the double cold springs would have been completely destroyed.

But that has already reached his limit, not to mention that the destructive power will be increased by a hundred times, even if it is doubled, he will be powerless.

In other words, if there is a problem in the recreation of the Twin Cold Springs, he will have no way to restrain the destructive power it will create, and he can only watch it rage.

Fengyun estimated that if he finally rebuilt the Twin Cold Springs in the valley where he was now located, and failed, all the lives of everyone in the valley would be wiped out.

If you can't escape in time, even if you are a metamorphosis warrior, I'm afraid you will not be able to escape.

However, according to the situation when the porcelain tube maze collapsed, with the speed of transforming a warrior, the chance of being able to escape would not exceed thirty percent, and this was still under precautions, otherwise the chance of survival would not be higher than one percent.

It's easy to imagine how important it is to find the right load-bearing material.

Fortunately, Fengyun has gathered through the forces of nature, so that he also has a certain understanding of the conditions of carrying materials.

According to the information brought back by the force of nature, Fengyun found that the material that made up the labyrinth under the twin cold springs was similar to jade, which inspired him, especially after discovering that the porcelain tube could not be carried, he decided to look for materials that were as similar as possible.

This is actually a very important reason why Fengyun decided to return to the ancestral land and rebuild the double cold spring in the ancestral land, because the ancestral land is jade-producing, and Lei Ze has no jade at all due to geological reasons.

Of course, whether the use of jade as a carrier material can be successful, Fengyun is not completely sure, and it needs to be tested to know.

However, after seeing the boulder he dug out in the embankment of the small river with a texture very similar to jade, Fengyun's confidence was much stronger.

In addition to the texture of this large stone, which is very similar to that of fine jade, there is also something that ordinary jade cannot compare, that is, it exudes a strong force of nature, and even the concentration of the power of nature in the water of the small river above it has reached a very high level.

With his knowledge of the power of nature, anything that has been infiltrated by it for a long time will become extraordinary, and he believes that this large stone that exudes the power of nature must be the same.

More importantly, the core of the man-made twin cold springs, the labyrinth beneath it, is operated by the forces of nature, which is the main source of stress for the carrying materials.

This large stone, which exudes the power of nature, must have been accustomed to the presence of the power of nature, and its ability to withstand the pressure generated by the power of nature must have a natural advantage compared to other materials.

Thinking of this, Feng Yu immediately liked the big stone in front of him, and its peculiar touch made him a little reluctant to withdraw his hand.

However, Fengyun was eventually a person with strong self-control, and quickly calmed himself down and took his hand away from the stone.

Then he circled around the boulder, ready to estimate its size.

To create an artificial double cold spring about the size of the Razor Double Cold Spring, the material required is not a star, and if the large stone is not large enough, even if it fully meets the requirements of the load-bearing material, it is not perfect.

Since the large boulder was still buried deep in the earth, Fengyun could not accurately estimate its size for a while, so the scout took the stone shovel leaning against the pit wall again and continued to excavate.

Since it was impossible to directly calculate the true volume of the large stone, he simply dug up all the soil around it.

However, as the crater around the big stone became larger and deeper, the look of surprise on Fengyun's face became more and more intense.

With his ability, digging a pit is naturally not a problem, even if there is water that continues to seep into the pit and needs to be treated, the progress is still very fast.

Therefore, it didn't take a while for the depth of the pit to more than double, and at this time the exposed part of the big stone was already more than a person high, and it was already more than the top of Fengyun's head.

Seeing this situation, Fengyun was finally relieved, when such a large stone is really used, even if it inevitably costs some, it can be used, it's a big deal, the double cold spring created is smaller.

In fact, it was its size that surprised Fengyun.