Feeling the vibration under his feet, Zhao Feng rushed out quickly.

After confirming that the device in his hand was locked to the current signal, Zhao Feng entered the numbers on the second pyramid without hesitation and clicked the confirmation button.

A beep sounded, and a green light came on on the "remote control" in my hand.

At the same time, a third of the safety lock somewhere deep underground in the city was unlocked.

Looking at the green light on the instrument in his hand, Zhao Feng narrowed his eyes slightly, and then ran straight towards the third pyramid.

There is no doubt that there is nothing wrong with his method. Now as long as the core numbers of the third pyramid are entered, the task will be easily solved.

After confirming that the instrument in his hand had locked onto the signal of the third pyramid, Zhao Feng immediately entered the answer and clicked the confirmation button.

Undoubtedly, there was another beep, and the green light on the instrument flashed again.
At the same time, the door of the third pyramid was opened directly as it was unlocked.

At this time, less than a minute had passed since the mechanism was activated. Although the roar in the entire ruins was gradually getting louder and the earthquake sensation was increasing, it was still within control.

But after unlocking the third pyramid, Zhao Feng felt a little uneasy.

Two green lights lit up on the instrument, but the problem was that the gates of the three pyramids were open.

If he remembered correctly, there were no numbers on the first pyramid.

I didn't pay much attention to it at the time, thinking that the first pyramid was a bonus.

But now it seems that is not the case.

In other words, there is a hidden pyramid in the ruins of this city.

Although he felt uneasy, looking at the open door in front of him, he felt a sense of expectation.

'Maybe there is a clue in this. '

Thinking of this, Zhao Feng rushed directly into the pyramid at a trot.

Inside, the internal structure is still exactly the same as before.

But this time, the prompt information was not written directly on the wall, but the history of what had happened on this planet was written.

The paintings on the rock slabs are delicately carved, and the dyes have not faded with the passage of time, but have become more vivid after settling.

This planet is the home of the Ancient Ones, where they thrive and grow.

Of course, this is not because the ancients are technologically advanced. In fact, this planet was once full of life.

Not only is the planet covered with a large ocean, but the ecological environment on land is also very suitable for the survival of carbon-based life.

But one day, for some unknown reasons, the planet seemed to be threatened by some kind of threat, and they had no choice but to take a spaceship and leave the homeland where they were born.

And in order to prevent his home planet from being invaded and destroyed, he can wait until they come back again.

Before leaving, the Ancient One began to crazily transform the planet.

They want to make this planet barren and no longer suitable for life.

The engineers of the Ancients hollowed out the core of the planet and packaged and transported all the water and atmosphere to the underground space.

At the same time, superb technology is used to re-simulate the movement of the earth's core to achieve the purpose of camouflage.

And if many years later, they resolve the crisis and want to come back here.

Then you only need to enter the ruins city and solve the puzzles in it to open the secret control room in the giant pyramid.

By activating the corresponding equipment from it, the original operation can be reversed and the planet can regain its vitality in a very short time.

The atmosphere, water resources, and magnetic field protective layer will all return to the surface, and everything will return to its original state.

Zhao Feng couldn't help but frowned when he saw this.

Now all three pyramids are opened, but it is obvious that the roar in the ruins has not stopped.

Staring at the giant pyramid mentioned on the mural, Zhao Feng couldn't help but frown deeper.

He was very sure that there were only three pyramids in the middle part of the entire underground ruins.

If we insist on talking about size, in fact these three pyramids are almost the same.

The only difference may be some differences in the number of layers of the pyramid.

However, the height of the tower and the overall area at the bottom of the tower are almost the same. There is no so-called Great Pyramid at all.

Thinking of this, Zhao Feng quickly ran out and came to the first pyramid again.

Looking at the huge blank rock on the pyramid, Zhao Feng couldn't help but sigh in his heart.

'I remember correctly, there is indeed no number, which means that the first pyramid was given for free and is not included in the three pyramids. '

'But where is that giant pyramid? '

'The painting on the wall clearly states that it should be in this ruins, but this is not the case. . . '

Zhao Feng kept recalling the previous scenes in his mind, but he had no clue.

'What's the problem? . . '

At this time, more than 3 minutes had passed. In addition to the huge roar in the ruins, the frequency of ground vibrations also began to slowly increase.

It is obvious that the self-destruction program of the ruins has entered the next stage.

The time left for him was not ample.

Zhao Feng was stuck at this stage and had no clue. He subconsciously wanted to ask for help from a plug-in.

But unfortunately, the plug-in that is cracking the Ancient One's "anti-cheating" system is too busy to interrupt now.

Knowing that he could only rely on himself at the moment, Zhao Feng took a deep breath and calmed down his heart first.

'Don't worry, where is your brain power?What about your reasoning and ability to pull things apart? '

After cheering himself up, Zhao Feng quickly calmed down. After looking around at his surroundings, he made a decision in his mind.

'Since there is no way out here, let's change the direction and solve the problem at hand. '

Thinking of this, Zhao Feng used telekinesis to wrap himself up. As his physical fitness was strengthened, he took three steps and two steps at a time and rushed towards the stairs returning to the surface.

After returning to the heights after a few minutes, Zhao Feng looked down at the ruins of the city below.

Originally, he wanted to check again to see if there was anything missing, but Zhao Feng soon discovered some differences.

The huge triangular ruins, the layout of the square blocks, everything seems to be hinting at something.

Although Zhao Feng didn't react at first, the more he looked at him, the brighter his eyes became.

'It turns out that the last giant pyramid is this underground city! '

'The ancient one is really a thief, a two-dimensional pyramid?Playing brain teasers, right? '

From Zhao Feng's perspective, the city's buildings are well-proportioned, and each block is built in a square shape.

Obviously, the engineers of the Ancient One did this on purpose.

But soon, Zhao Feng's slightly excited expression turned serious again.

On the giant pyramid in front of him, it seems that because it has experienced too many geological disasters, only the three corners of the buildings are left in all the blocks. They have survived the ravages of time and disasters and been preserved.

In addition to the buildings at the three corners of the pyramid, the numbers they represent can be identified.

Without exception, the buildings in other neighborhoods were reduced to rubble.Moreover, this two-dimensional giant pyramid has twice as many layers as the third pyramid.

So to calculate the core value of this pyramid, if he uses the two methods he used before, it will take a lot of time.

But in the current situation, there is obviously not enough time for him to decipher it.

Glancing at the instrument in his hand, he indeed recognized the signal from the pyramid, but for some reason the signal was intermittent and very weak.

'No, we can't stay here to decrypt. If there is an error in transmitting the intermittent signal, wouldn't it just be GG? '

Thinking of this, Zhao Feng went back the same way and ran towards the center of the ruins according to the terrain of the ruins he had just noted down at a high place.

Fortunately, the core of the giant pyramid is located slightly above the three pyramids.

Being familiar with the road, Zhao Feng didn't waste much time.

As for Zhao Feng, who was running towards the core area, his mind was not idle either. He was running distracted while still thinking about ways to calculate the puzzle.

'I can use algebra to deduce it, but the seventh sense is blocked and there is no sense of time. It's hard to say whether I can solve the puzzle here before the ruins are destroyed. '

'So we have to think of a better way and use more suitable tools to solve the puzzle. '

Zhao Feng didn't run for long before he thought of a simple and good method. I have to say that it is really cool when the knowledge attribute is high.

In addition to increasing the success rate when deciphering blueprints, it also allows Zhao Feng to recall and mobilize the knowledge in his mind faster.

Although there is some overlap with the role of mental attributes, it is an attribute that specializes in knowledge after all, and the superimposed bonus is even more terrifying.

It took Zhao Feng more than a minute to think of applied algebra.

What now?After he used his brain, he found a more convenient way to solve the problem in his memory in just 3-5 seconds.

With problem-solving ideas, everything becomes simpler.

First, set the layout of the pyramid in your mind, and then fill in the three corners of the pyramid in your mind with the numbers you just saw.

First, the two corners at the bottom are 1 and 3
Next, there is no need for too much troublesome calculations. Starting from the bottom row, you only need to put the corresponding color in each empty space.

Taking the pyramid as the midline, there are several blocks on the half side close to the number 1, which are several red blocks.

Similarly, near the half side of the number 3, is the yellow block.

If it happens to be an odd number, then it is one-half of the fused color block of yellow and red.

Then starting from the lowest level, the two waists of the pyramid, each time it goes up one level, are continuously stacked upwards in the order of 1 + color blocks.

The left side is 1 + the number of red blocks, and the right side is 3 + the number of yellow blocks.

In this way, it can be deduced to the second to last floor of the tower.

Those two numbers are 1+X red blocks and Y yellow blocks, and 3+X red blocks and Y yellow blocks.

Then subtract 1+3 from the number on the top of the tower, and then divide it by the corresponding color patch ratio to get a set of data.

Next, there is no need to calculate the specific values ​​represented by the red and yellow blocks. Instead, the fixed level ratio of the pyramid can be substituted into the calculation.

Soon, in less than a minute, Zhao Feng calculated the numbers at the core.

At this time, because a lot of time was wasted traveling back and forth, the vibrations in the city were already comparable to a magnitude 7 earthquake, and the place would completely collapse at any time.

Seeing this, Zhao Feng didn't dare to hesitate for a moment, directly pressed the number he had just calculated, and quickly clicked to confirm.

The next second, there was a series of loud noises coming from under the feet, and the strange sound of mechanical closing metal twisting.

The surrounding vibrations rapidly attenuated at a speed visible to the naked eye, and the roar also gradually faded away at this time.

In less than half a minute, the entire ruins returned to its previous calm and peaceful state.

Looking at the calm ruins city, Zhao Feng couldn't help but let out a sigh of relief.

"Boom, boom."

As Zhao Feng let out a long breath, after the shaking in the block in front of him completely subsided, it slowly moved to reveal a staircase leading underground.

Adhering to the concept of caution, he still did not go in hastily.

Open the champagne at halftime?Zhao Feng would not set up such a flag for himself.

First, check the remaining oxygen content in the backpack.

The amount of oxygen consumed by the strenuous exercise and mental calculations just now and the previous exploration was very large.

The backpack that was originally capable of supporting 4-6 hours now only has 25% left.

'No wonder I felt a little suffocated just now. Has the oxygen content dropped below the boundary? '

Without hesitation, Zhao Feng took several deep breaths in succession to increase the oxygen content in his body, then immediately cut off the connection to the oxygen backpack and replaced it with the spare backpack he had brought before.

With the help of telekinesis, the process of changing the backpack is extremely easy.

After starting the oxygen supply machine and taking a few breaths of fresh oxygen, Zhao Feng looked deeper into the stairs.

He knew that that was the ultimate goal of this trial mission.

Go down the stairs slowly.

Obviously the ancient ones did not have the dark thoughts of "attacking the vaginal testicles" and did not engage in those designs of the underworld.

The stairs leading to the control room are clear all the way.

After walking about a hundred meters, he arrived at the so-called control room.

Staring at the huge switch wrench and the gear text engraved on it, Zhao Feng couldn't help but look puzzled.

【Storage】

【reduction】

【destroy】

My family is outrageous. There is such a stupid joystick in the control room that can change the entire planet.

This ancient one is too. . .

Zhao Feng didn't know how to complain for a while. He originally thought it was an area similar to the space base launch center.

It turns out, good guy, that’s it?

Fortunately, because I had been taught ancient texts before.

Zhao Feng fully understood those three words, so now there was only one last question left, when to pull it off?

Zhao Feng did not take action immediately, but looked at the surrounding environment.

He was afraid that he might miss some key information, but after searching deliberately, he soon saw a sentence carved on the wall on the side.

'The path forward cannot be stopped. Destruction and rebirth are all in your hands. Please choose the next path carefully. '--! ¥@
He squinted at the advice on the wall, the signature on it was already unknown.

But the meaning is extremely clear.

After reading it again, he chuckled and shook his head, walked to the lever and pulled it directly to the [Restore] position.

No matter what the road ahead is, he will go on firmly, not only for himself but also for his family. (End of chapter)

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