As soon as the main brain's voice fell, an indescribable strong vibration came from outside the well, although Qi Lin's side had been added multiple protective measures, but when the shock wave reached the safety well, he was still shocked for a moment and lost consciousness.

Those who have not faced a nuclear explosion will never be able to appreciate the heart-pounding destructive power, and after the devastating light radiation and shock waves, the world is left with infinite silence.

Qi Lin could clearly feel that the temperature of the physiological maintenance solution was rising rapidly, and even if the safety well had a thick thermal insulation layer, it could not isolate the large amount of heat attached to the light radiation - this location was too close to the center of the nuclear explosion, even if it was not a rudimentary safety well, but a nuclear shelter that met the standards of the Alliance, and in the case of a direct hit by a nuclear bomb, the people in the shelter would suffer extremely heavy casualties.

In fact, only about two-thirds of the shelters that managed to survive the end of the nuclear war had been completely destroyed...... In particular, the shelters built underground in the international metropolises are the key targets of hostile forces, and even if the shelters are built at a depth of 200 meters underground, the ground-penetrating bombs loaded with nuclear warheads can penetrate the thick rock formations and directly destroy the entire shelter.

The temperature of the physiological maintenance solution is still rising, and a large number of cracks have appeared on the one-piece alloy steel frame used to support the wall of the safety well, and some parts have even been deformed, which makes Qi Lin worry about whether the safety well will collapse directly in the next second, and then bury himself at the bottom of the well.

The safety well was sixty meters deep, and the geology of this area was all hard rock, if it was really buried inside, even if he was a fifth-level evolutionary, it would not be easy for him to escape.

"The yield of this nuclear warhead is already small, the shock wave has passed, and you can now leave the safety well." As soon as the mastermind finished speaking, Qi Lin couldn't wait to float towards the wellhead - for him, as long as he could avoid the most lethal light radiation and shock waves, the nuclear explosion would not pose any threat to him, not only was there no threat, but in the follow-up nuclear radiation, Qi Lin could also get a lot of benefits.

The wellhead was sealed with a metal lid more than two meters thick, and as soon as Qi Lin's hand touched the valve, he felt an astonishing heat coming from above.

Fortunately, the liquid in direct contact with the metal lid absorbs a lot of heat, otherwise the valve would have been burned red by light radiation.

There was a slight deformation inside the valve, but fortunately, it was not a precision machine, Qi Lin directly unscrewed it with brute force, but just when he wanted to push open the lid and drill out of the safety well, the main brain suddenly stopped his movements.

"Wait...... The First Mastermind has temporarily mobilized a surveillance satellite to inspect the surface of the blast area, and you will be spotted if you go out now. ”

There was no way, Qi Lin could only continue to soak in the safety well filled with physiological maintenance fluid, and it was not until almost twenty minutes had passed that the main brain said to him, "Okay, you can go out now." ”

The manhole cover was lifted, and a large amount of high-temperature steam escaped from the safety well, and when the steam was almost dispersed, Qi Lin poked a head out of the well-

"Is this the world of the strong? …… Uh, wait, I think I got the wrong line......"

The surface of the earth seems to have experienced a catastrophe, and some areas have even appeared in a state of vitrification, as for the two scaly giant apes, they have turned into two large lumps of charcoal-like substance, and the wreckage torn apart by the shock wave is scattered.

Looking up at the center of the explosion, a huge mushroom cloud rose from the surface, the tip of the mushroom cloud stretched all the way to the sky, connecting with the radiation cloud in the sky.

Qi Lin could feel that the concentration of radiation in the surrounding environment had reached an outrageous level at this moment, and a large number of charged discrete particles were constantly spreading around...... Nuclear radiation, this is the most talkative part of the nuclear bomb, the light radiation and shock wave bring only a moment, and nuclear radiation to completely dissipate, it will take decades or even hundreds of years, like those heavily radiated areas that are listed as forbidden areas for human beings, will maintain this status quo for a long time in the future.

If Qi Lin is not mistaken, this should be the first strategic nuclear warhead detonated in the real world after a nuclear war...... This made him think of the familiar line again-

“ar，ar never change……”

The nuclear winter had just passed, and humanity had not even managed to return to the surface, and the shadow of war had once again cast a shadow over the wasteland.

Feeling emotional, Qi Lin did not miss this opportunity, and took advantage of the time when the nuclear radiation in this area was the most intense to desperately drive the concentrated energy vortex, wantonly absorbing the radiation energy free in the environment...... The concentration of radiation around it is even more exaggerated than in the radiation pool that was built in the main brain before.

After all, this is the energy released through violent fission, which is naturally more violent than the relatively gentle method of the radiation pool, and the high concentration of radiation in this area will continue for several days before slowly falling to the level of a normal heavy radiation area.

Regions such as Victoria Harbour, Beijing, and New York, which have been hit by nuclear bombs, are much larger and last longer.

If you want to purify this radiation zone, it will take a lot of manpower and material resources, and the progress is very slow, even after the human beings return to the surface, it is estimated that no organization will do such a thankless thing - the entire surface of the earth, the area suitable for human habitation is probably only one-tenth of the pre-war period, or less.

"Now the word...... Stronghold Zero should be safe for now, right? Qi Lin stepped on the hot ground and asked the mastermind.

There was no response, and there was not even an electric noise coming from the headphones - the high-intensity radiation directly turned the set of communication equipment on Qi Lin's body into a waste product.

"If you can't contact the mastermind...... That's a bit troublesome......" Qi Lin looked at the communication equipment that couldn't even turn on, and shook his head a little depressedly, to be honest, this kind of opportunity is very rare, he really wants to stay here and let the Gathering Energy Vortex suck up, but at this time, the situation in the outside world is changing rapidly, and the organization and the Revolutionary Federation are still fighting fiercely in the Sword Pavilion Fortress, if Qi Lin continues to stay here, it will undoubtedly be equivalent to cutting off all contact with the outside world......

Wait a minute!

Qi Lin suddenly thought of one thing, not long ago, after the nuclear bomb exploded, the main brain could still communicate with himself, until he drilled the safety well before the communication was interrupted, at first Qi Lin thought that the communication equipment was destroyed by ionizing radiation, but after thinking about it carefully, even if the communication equipment was not scrapped, then the radio signal could not pass through this radiation area full of chaotic electromagnetic waves......

How did the mastermind keep in touch with him just now?

…… Safety well!

Qi Lin suddenly felt a little abrupt, there must be an emergency communication line installed in the safety well, the reliability of wired communication is much stronger than that of radio, plus the physiological maintenance fluid can block the interference of radiation in the well to the greatest extent, no wonder after the nuclear explosion, the main brain can still communicate with himself.

Thinking of this, Qi Lin immediately ran back to the wellhead of the safety well and jumped into the well again.

Dive to the bottom of the well, Qi Lin carefully searched along the wall of the well, and sure enough, he found an inconspicuous dark groove, and when he opened it, it was a signal transceiver equipped with eight antennas and a set of waterproof wired communication equipment.

Qi Lin's radio was no longer available, and he couldn't receive the radio signals sent by the signal transceiver, so he could only pick up the set of wired communication equipment and put the microphone to his ear-

"I thought you weren't paying attention to that......"

As soon as the communication was activated, the familiar voice of the main brain came from the other end of the microphone.

“…… Indeed, he almost ignored this...... "The physiological maintenance fluid will not choke Qi Lin, so he can also talk underwater, but his voice has become very dull."

"I know that you plan to stay in the nuclear explosion zone and continue to absorb radiation energy, which I have no objection to, after all, you need to quickly improve your strength to complete the various tasks I will give you next, and there are not many such opportunities."

"But what about the Sword Pavilion Fortress?"

"The army of the Revolutionary Union has come to the city, and the outer fortifications of the organization have all been uprooted, and only one Jianmen Pass is still struggling to support, although the situation above the organization has fallen into a great disadvantage, but generally speaking, the battle situation is quite stable, with the existence of underground passages, the Sword Pavilion Fortress is not a lonely city, and the Revolutionary Union will not be able to attack it for a while and a half." The mastermind told Qi Lin the latest news on the battlefield.

"That's good, if the Sword Pavilion Fortress falls, then it will really be powerless."

"According to my calculations, if the Revolutionary Federation does not increase its troops and the organizational commander does not take the initiative to give up, the Sword Pavilion Fortress will be able to support at least five days." Mastermind analyzed.

"Five days ......" Qi Lin naturally knew that these five days were the time left for him to absorb energy, and when the Sword Pavilion Fortress was about to fall, he would definitely not be able to just sit idly by.

Once the Sword Pavilion Fortress is captured by the Revolutionary Alliance, the organization will instantly fall into a situation of defeat and retreat, and at that time, the organization will no longer have the ability to organize the implementation of the utopian plan, and without the organization to contain the attention of the mastermind in the front, Qi Lin's next actions will be even more difficult.

"By the way, is the new hideout ready? If I make a move then, the mastermind will definitely know that Stronghold Zero has not been destroyed, and at that time, there will be no way to fool it. "Qi Lin didn't want this hiding place for his own sake, if he was the only one, even if he spent the night in the wilderness every day, it would be no problem, but now that there is one more Persephone, then this problem needs to be thought about.

"Within these five days, I will solve this problem as soon as possible, you don't have to worry." "What you need to worry about is the surveillance satellite above your head." ”

"Surveillance satellites? Isn't it already gone? ”

"What left is only the satellite that temporarily changed its orbit, in addition, every day from 7:15 to 7:22 in the morning, from 11 to 11:19 at noon, from 3:50 to 3:55 in the afternoon, there will be monitoring satellites passing directly above this area, this area is different from the zero stronghold, there is no interference device for camouflage, the monitoring satellite can take a clear picture of the scene on the ground, you had better hide in the safety well in advance before the arrival of these time periods, If it was caught by surveillance satellites, we would have to change our plans. ”

"Got it." Qi Lin said, silently writing down these points in time in his heart.

"Also, if there is an emergency, I will directly activate the alarm in the safety well, and you better not go too far into the safety well."

"Hmm." The so-called emergency naturally refers to the battlefield of the Dejian Pavilion Fortress, after all...... This is a real war, not a simulation program calculated by a computer, accidents can happen at any time, even if the mastermind suddenly tells Qi Lin at this time that the Sword Pavilion Fortress was suddenly breached by the Revolutionary Alliance, Qi Lin will not be so surprised.

Before the war reached its last moment, no one knew what would happen next.

……

……

The use of the city wall for offensive and defensive warfare was very common in the era of cold weapons, in that era when the only means of long-range attack were trebuchets and bows and arrows, the city wall could provide a great advantage for the defender - whether it was the East or the West, in any ancient books related to the art of war and strategy, where the two sides want to fight around the city wall, the overall strength of the attacking side must be much stronger than the defending side, and in the process of fighting, the side with the city wall can increase the battle loss ratio to a very exaggerated number.

This situation spanned the entire era of cold weapons, including the period when hot weapons first appeared, and it was not until the middle and late stages of World War II that the role of the city wall was greatly weakened after the invention of various powerful weapons...... Until modern times, the existence of the castle wall was basically limited to the meaning of an ancient building, and it was basically no longer used as a fortification.

But the Sword Pavilion Fortress is different, the city wall of the fortress is not only composed of the city wall itself - close defense guns, giant energy shields, electromagnetic interference fields, phalanx defense systems and other high-tech defense facilities have once again defined the meaning of the word "city wall", and in the face of the organization's ironclad defense, the pace of the Revolution Alliance's offensive had to slow down-

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