Knowing that tens of thousands of small flying machines and hundreds of thousands of alien creatures had come to attack the defense area, Ling Feng's whole body was cold.

In particular, tens of thousands of small aircraft have reached the first line of defense, and such a situation is extremely dangerous.

Because, according to the speed of those flying machines, it will not take half an hour for them to reach the entrance of the underground shelter, and at that time, the hundreds of thousands of people hiding in the shelter will not be spared.

Thinking of this, Ling Feng closed his eyes in pain, gritted his teeth fiercely, and ordered all the ninth-generation robots who controlled the golden mecha: "All ninth-generation robots obey the order and immediately go to the north of the first line of defense to intercept the invading aircraft!" ……”

"Yes, sir!" The remaining more than 400 golden mechas, after receiving the order, agreed one after another.

This time, Ling Feng clearly knew that all his armed forces would be wiped out, including the more than 1,700 B2 bombers, there was no chance of survival.

However, this is no longer a matter of choice.

Now, the entire Jiushi Mountain Defense Area, all the defensive forces, have been destroyed, and he no longer has any extra arms to resist the enemy.

Soon, more than 400 golden mechs were already engaged in fire with the small flying machines that had entered the sky above the first line of defense.

Due to the huge disparity in strength between the two sides, more than 400 golden mecha were completely destroyed in just a few minutes under the attack of tens of thousands of dark rays, including the ninth-generation robots in the cockpit.

Followed by. The 1,700 bombers that went to bomb the top of Taiping Mountain also entered the sky above the first line of defense, and under Ling Feng's temporary order, they launched bombing and attacking those flying machines.

If 1,700 bombers could wipe out some of the enemy, Ling Feng would order Sun Lei to send more than 2,000 mecha fighters to all the main battle mechs he had stored inside and outside the shelter and drive them into battle to fight those enemies who came to invade. Engage in a life-and-death battle.

This is already his last stand. Although he knew that his mechwarrior could not be an opponent of tens of thousands of flying machines at all, he had no choice!

Tonight was a night of non-death, and it was also the time since Ling Feng had possessed an infinite arsenal. The greatest danger faced.

Come to think of it. Ling Feng took a deep breath. Through the wireless communication device, Sun Lei, Wu Kecong, He Hailong, Macho Man, Xiao Yu and Chen Sanjie and others were contacted, and they forcibly endured the trembling in their hearts. He said in a hoarse voice: "The defense line has been lost, a large number of enemies are about to kill at the entrance of the shelter, from now on, in the entire underground shelter, as long as there are people over the age of fourteen, regardless of men and women, all are equipped to fight to defend the safety of the shelter!" ……”

When Ling Feng conveyed the whole bad news to Sun Lei and Chen Sanjie.

All the core leadership members were stunned!

They never imagined that danger would come so quickly.

The Jiushi Mountain Defense Area was still in good condition during the day, but how could it be that in one night, five military defense lines and hundreds of thousands of large munitions and equipment were all destroyed?

Everyone was stunned for more than ten seconds before slowly coming back to their senses.

Suddenly, everyone's faces were like ashes, and they were shocked to the extreme!

Soon, Sun Lei, Wang Jing, Wu Kecong, He Hailong and others quickly rushed into the command center of the underground shelter and sounded the red alarm.

Suddenly, red warning lights flashed everywhere in the entire underground shelter, reminding everyone that danger was coming.

Sun Lei, who had a solemn face, spread the bad news that the alien enemy was about to attack the shelter through the radio, and spread it to all corners of the underground shelter, and also informed everyone that he would immediately equip himself with weapons and be ready to fight to protect the safety of the shelter at any time......

As soon as the early warning broadcast came out, it was like a bombshell had been dropped on the entire underground shelter.

Suddenly, inside the huge shelter, it began to boil and exclaim.

Fear, nervousness, insecurity, despair, and other emotions envelop all people......

Under the arrangement of Wu Kecong, Wang Jing and others, all the people trembled and picked up weapons and firearms, ready to fight for survival.

At this time, the special operations detachment under the command of He Hailong, with more than 10,000 fighters, were all ready for battle.

At the same time, the mecha combat department, also under Sun Lei's order, left the residence one after another, and lined up at the entrance of the first floor, ready to drive the mecha at any time and rush out of the gate to fight a life-and-death battle with the alien invaders who were about to attack the shelter.

At this moment, Ling Feng had already entered the shelter.

From a distance, he saw Sun Lei, Wang Jing, Mengnan, Xiao Yu and others, commanding hundreds of mecha warriors to enter the mecha stored in the first floor of the shelter.

At that moment, Ling Feng walked up to them with a heavy heart, wanting to say something, but suddenly, he couldn't say anything.

Because, he clearly knew that once these people drove the mecha out of the floodgates of the shelter, it was estimated that they would never come back.

At this time, Sun Lei and Wang Jing saw Ling Feng and walked over with solemn faces.

"Fengzi, how many enemies have come, I ...... Can we hold on? Although Sun Lei's expression was calm, his eyes were full of worry.

Hearing him ask this, Wang Jing and the others didn't speak, they all looked at Ling Feng with a solemn face.

Ling Feng took a deep breath and said, "I don't know, as long as there is still a breath left, we all have to stick to it!" ”

As soon as these words came out, everyone fell silent, and it seemed that everyone was in a very uncomfortable mood.

Suddenly, Ling Feng remembered the crystal stalactites that the group of little children had found at the bottom floor, especially when they said that there were people hidden in the crystal stalactites, Ling Feng's heart beat suddenly.

Because, he began to suspect the cause of the Dark Bug Emperor's death.

When he found the corpse of the Dark Worm Emperor next to a broken crystal stalactite, he felt that something was wrong. But what was wrong, he couldn't tell.

In order to figure out the doubts in his heart, he decided to go to the bottom immediately to see what was strange about the crystal stalactites that those little kids had found.

Thinking of this, Ling Feng hurriedly said to Sun Lei and the others: "You first lead all the mecha to guard at the entrance, try to use long-range firepower to fight the enemy, and once the ammunition on the mecha is finished, quickly retreat to the shelter, I have important things to do now." Gotta go to the bottom. Whether or not we can survive tonight is still unknown! ”

Hearing this, Sun Lei and the others nodded, and then led all the mecha warriors. Rushed out of the floodgates.

When Sun Lei and they left. Ling Feng found He Hailong non-stop. Let him lead him to the bottom to see where the crystal stalactites of their defense line are in the corner.

He Hailong listened. He nodded suspiciously, and then took him to the bottom with him.

Just as they were heading to the bottom floor, Ling Feng's mind was filled with tingling pain one after another, and he knew that this was a sign that a large number of robots had lost contact with him.

It is estimated that all the golden mechs and bombers sent out by him are almost wiped out under the encirclement and suppression of tens of thousands of alien aircraft.

If this continues, it is estimated that in a few minutes at most, the alien invaders will attack the entrance to the underground shelter.

When the time comes, I don't know how long the more than 2,000 main battle mecha led by Sun Lei will be able to last.

Thinking of this, his heart became more and more nervous, and his walking pace also accelerated a lot.

In order to be able to race against time, Ling Feng gave himself a top-level potential explosion potion, and at the same time, he also let He Hailong take a copy.

The thousands of copies of the superior potential explosion elixir that he had exchanged for were distributed to Sun Lei, Mengnan, He Hailong and other brothers and friends as early as dinner in the evening.

Including some core members, each person was given ten high-level potions, and as for other lower-level potions, there were many others.

After taking the high-level potential burst potion, the movement speed of the two of them skyrocketed!

It took less than a minute for Ling Feng and He Hailong to rush to the bottom of the shelter.

On the way down to the ground floor, they saw a large number of survivors, armed with weapons and guns, quickly running towards the upper floors under the leadership of the wardens of the various settlements.

In order to ensure the safety of the shelter, all adults, including half-sized children, must take responsibility for the defense.

Although their armed forces are vulnerable to those alien invaders, it is better than nothing anyway.

Due to the speed of Ling Feng and He Hailong's movement, basically, when they passed through some corridors and stairs, only afterimages were left behind.

Many people felt that as soon as the flowers were in front of them, two ghostly figures flashed past.

Most people were unaware of the existence of Ling Feng and He Hailong.

After coming to the bottom of the shelter, He Hailong didn't talk nonsense, and directly rushed towards the innermost part of the bottom with Ling Feng.

Moments later, the two of them stopped at the door of a storage warehouse.

The entrance of the warehouse is a wide hall with a radius of 100 meters, and in the center of the hall, there is a crystal stalactite seven or eight meters high.

This giant crystal stalactite, the thickest part of its bottom, has to be surrounded by at least two or three adults to be able to hold it.

Under the bright light, this giant crystal stalactite, shining with colorful and gorgeous light, stood next to it, and the faces of the two people reflected became colorful.

At this time, He Hailong stood beside Ling Feng, pointed to the giant stalactite in front of him and said, "At that time, they were gathered around this crystal stalactite and watched non-stop, do you think there is something wrong with this stalactite?" ”

Hearing this, Ling Feng nodded and said, "Didn't they say that they saw someone hiding here?" So, I'm like looking, what's weird inside this crystal stalactite!"

He Hailong shook his head and said: "The child is talking nonsense, it can't be true, I carefully observed this stalactite at that time, and I didn't find anything abnormal at all, not to mention that someone was hiding inside, even a fly, I didn't see it." ”

Ling Feng frowned slightly, and immediately walked to the side of the crystal stalactite, squatted down, and carefully studied and observed around it.

This crystal stalactite, as He Hailong said. The whole body is clear and transparent, from top to bottom, and there is nothing strange in it at all.

If there was something hidden inside, he wouldn't have been able to find it.

Thinking of this, Ling Feng suddenly turned his head and glanced at He Hailong, and said, "Brother Long, you tell the truth, the other children don't say it, do you think Dandan looks like a child who likes to lie?" ”

Seeing him talk about his son, He Hailong's eyes softened. He groaned for a moment. said: "Dandan is my son, I know him." He rarely lies, and he doesn't lie to me, but to their group of kids there are people in the stalactites. Presumably they were mistaken. ”

Ling Feng lowered his head and thought for a while, "Brother Long." You may not know the inside story. This matter is very important to me, it is a matter of life and death for the entire underground shelter, and we are here today. I must see what is going on, so now I have to ask you to help me destroy this crystal stalactite, and I have to check it from the inside out before I am willing! ”

Hearing that he regarded this matter as so important, He Hailong became more and more puzzled, but he was not the kind of person who liked to ask more, so he nodded immediately. "Okay, I'll go get a bazooka!"

A moment later, He Hailong went and returned, with an extra bazooka and a few rockets in his hand.

Ling Feng quickly took the bazooka, then quickly loaded the rocket, retreated dozens of meters with He Hailong, and after putting on the anti-interference mute helmet, he carried the bazooka and aimed at the crystal stalactite dozens of meters away, ready to fire and bomb.

Shout!

Rumble! ……

A rocket hit the crystal stalactite, and suddenly, a dull explosion sounded in the bottom layer.

For a while, the waves of fire were everywhere, the air flow was rolling, and between the shrapnel and rubble, the giant crystal stalactite was bombed to pieces, and the waist collapsed with a bang.

Boom! ……

There was another heavy collapse sound, and the upper half of the stalactite slammed into the floor, and the transparent crystal stone was scattered to the ground like glass.

Ling Feng saw that there was still half of the crystal stalactites below that had not been shattered, and he immediately fired another rocket.

Shout!

Rumble! ……

After the explosion, the transparent gravel flew all over the sky, and the remaining half of the stalactites were finally completely shattered.

"Sizzle! ……”

Suddenly, Ling Feng seemed to hear an extremely subtle and sharp sound coming from within the blown crystal stalactite.

The sharp voice was extremely low, but fortunately, he had now taken the superior potential burst potion, and his hearing was many times stronger than usual, otherwise, he really wouldn't have noticed.

At this time, He Hailong also glanced at him with a different face, as if he also noticed the sharp voice just now.

Encountering this scene, Ling Feng's face changed, and after making a glance with He Hailong, the two walked towards the crystal stalactites with a tacit understanding.

During the walk, neither of them made a sound, and they seemed very cautious.

Because He Hailong was walking a few steps ahead, Ling Feng saw that there was suddenly a black scimitar in his hands.

Although this scimitar is not long, it shines with a cold, murderous aura.

Ling Feng was a little familiar with this scimitar, because he had seen He Hailong use this scimitar to kill six dark zombies in an instant at night a long time ago, and the domineering scene at that time made everyone present remember it vividly.

He Hailong is a very vigilant person, and he is also a person who is very sensitive to danger.

Now, he reveals the secret weapon he hides on his body, which proves that he is aware of the danger.

In this way, there must be something dangerous hidden in the crystal stalactite.

Could it be that the Dark Worm Emperor is hiding inside?

Thinking of this, Ling Feng's heart was shocked!

In order to prevent an accident from happening, he hurriedly quickened his pace, came to He Hailong's eyes, and motioned for him to put on the anti-interference mute helmet again.

After both of them put on the anti-interference mute helmets, they continued to move lightly ahead.

Suddenly, a scene that Ling Feng would never forget appeared to him.

I saw that inside the destroyed crystal stalactite, a tall monster crawled out of its whole body.

The monster is nearly three meters long, has four arms on its upper body, and has a face that resembles a human, especially with a bulging sac hanging from the back of its buttocks...... After seeing this, Ling Feng's pupils contracted on the spot. Breathing heavily.

"Dark Bug Emperor!" Shocked, Ling Feng couldn't help but exclaim.

What surprised him even more was that the Dark Insect Emperor in front of him seemed to be different from before, because now, the color of its skin was no longer the snow-white it used to be, but almost transparent.

At this moment, the two of them were less than ten meters away from the Dark Worm Emperor. Suddenly. Behind the dark insect emperor's cold eyes, a strange light flickered, and then, its mouth opened. There was a terrible roar that was extremely high-pitched.

But. Ling Feng and the others wore anti-interference mute helmets. I can't hear the mental attack it sends out.

Suddenly, the four arms of the Dark Insect Emperor were raised, and suddenly. Dozens of slender dark rays shot towards Ling Feng and He Hailong like lightning.

If you want to dodge, it's too late!

At that moment, Ling Feng suddenly summoned the golden mecha!

Suddenly, the golden mecha that suddenly appeared out of thin air blocked him and He Hailong, intercepting all the dark rays!

"Zizi! ......"The golden mecha was constantly emitting green smoke under the attack of the dark rays.

Ling Feng seemed to be able to feel that the strong defense of the golden mecha was rapidly corroding and dissolving under the attack of those dark rays, and in an instant, many small black holes appeared on the legs of the mecha.

It seems that the dark rays emitted by this Dark Worm Emperor are really not ordinarily strong!

However, it was precisely because of the sudden appearance of the golden mecha that the life crisis of the two of them was resolved, and at the same time, it also created a chance for them to make a move.

At that moment, Ling Feng quickly drilled into the cockpit of the golden mecha, and He Hailong also circled behind the Dark Insect Emperor in an instant at an almost lightning-like speed, and the black scimitar in his hand had already burst out with an extremely cold murderous aura

Shout! Shout! Shout! ……

More than a dozen cold lights flashed on the back of the Dark Insect Emperor, and suddenly, the Dark Insect Emperor let out a terrible hissing sound, and more than a dozen wounds up to more than ten centimeters appeared on its crystal clear back in an instant, which was shocking!

However, what is even more surprising is that the recovery speed of this Dark Worm Emperor is almost a breathing gap, and all the wounds on its back are closed at a speed that can be detected by the naked eye.

Seeing this, He Hailong was taken aback, and was about to swing his knife to slash, but at this time, he had no chance to attack, because, the Dark Insect Emperor turned his body suddenly, and between the four arms stretched, those terrifying dark rays were about to shoot out!

In order to ensure the safety of his life, He Hailong had to give up attacking again, flashing back, and after an afterimage, he had successfully hidden behind a huge stalactite.

"Zizi! ……”

A burst of green smoke rose straight up, and the stalactites that covered He Hailong's figure were already beginning to dissolve and penetrate under the attack of dozens of dark rays.

Seeing that those terrifying dark rays were about to penetrate the stalactites and shoot into He Hailong's body, suddenly, behind the Dark Insect Emperor, several dazzling incomparably lasers slammed into its body, and suddenly, it triggered a series of roars from the Dark Insect Emperor.

Roar! ……

Looking at the Dark Worm Emperor's miserable and painful expression, it seemed that the damage caused by the laser to it was very serious, because the recovery speed of the place where it was hit by the laser seemed to be much slower.

After seeing the threat of the golden mecha, the Dark Worm Emperor immediately gave up dealing with He Hailong, turned around directly, raised his four arms in anger, and continued to shoot dark rays towards the golden mecha.

In an instant, dozens of dark rays shot fiercely at the chest of the mecha.

Soon, Ling Feng, who was sitting in the cockpit, felt that many places outside the chest of the golden mecha were beginning to rapidly dissolve and penetrate, and if this situation continued, at most, after a few seconds, those dark rays would shoot through the mecha, and then kill him sitting in the cockpit.

Because He Hailong was behind the Dark Insect Emperor, Ling Feng didn't dare to let go of his hands and feet to fire, and under the crazy destruction of the dark rays, many weapon systems inside the mecha had already been damaged and malfunctioned.

"It's over, it's over! ......" Ling Feng secretly screamed in his heart.

At this extremely dangerous moment, He Hailong, who was hiding behind the Dark Insect Emperor, burst out with a loud cry, and his body rose into the air.

I saw a cold light flash in his eyes, and suddenly, the black scimitar in his hand was like an incomparably powerful lightning bolt, slashing down at the back of the Dark Insect Emperor's head!

Shout! ……

Snow-white and thick blood splashed everywhere like a fountain.

Boom! Boom! Boom! ……

The huge head of the Dark Insect Emperor had fallen to the ground with bones at this moment, and its tall headless body slowly fell to the ground.

At this moment, in Ling Feng's mind, a mechanical voice that he had been looking forward to for a long time finally sounded: "Congratulations to the chief for successfully destroying a Dark Insect Emperor, so the system will reward you with a special growth permission, may I ask if you accept the reward?" ”

Hearing this voice, Ling Feng was so surprised that he was about to cry with excitement.

At that moment, he took a deep breath, forcibly resisted the excitement in his heart, and responded with a trembling voice: "I want to accept the reward immediately!" ”

The mechanized system voice sounded again: "Special Growth Permission Reward Success!" Currently, since there is only one level left in the Infinite Arsenal, please use the Special Growth Privilege to upgrade the Arsenal now, would you like to? ”

"Yes, I do, hurry!" Ling Feng hurriedly urged.

At the moment when he agreed to use the special growth authority, suddenly, the mysterious light cluster in his mind suddenly burst out with a dazzling light.

Immediately after, a very loud and special voice suddenly sounded in my head. "Congratulations to the Commander on raising the Infinite Arsenal to the maximum level, so you will receive the ultimate reward of the Infinite Arsenal: 24 hours of unlimited unbanning, and will you accept the reward immediately?"

"Hahaha! …… I'm going to accept the reward right away! ......" Ling Feng responded with a wild laugh.

However, at this moment, Sun Lei's voice suddenly sounded in the wireless communication device.

Because Ling Feng wore the communication device in his ears, he could clearly hear the sounds outside the base.

"Fengzi, the long-range ammunition of our more than 2,000 mechs has been exhausted, and at present, the enemy is less than ten kilometers away from our shelter......"

Hearing this, Ling Feng immediately recovered from the surprise of getting the arms ban lifted, and he hurriedly urged: "Quick, quick, you all quickly withdraw to the shelter, block all the mecha outside the entrance, and I will immediately notify the robot controlling the gate to close all the gates." Don't worry, we've been saved this time......"

Sun Lei was very excited when he heard Ling Feng's tone, and felt very strange, but he didn't ask too much, and directly followed Ling Feng's instructions to bring all the more than 2,000 mecha warriors who went out to fight back to the underground shelter.

Just after all the personnel who went out to fight were withdrawn into the underground shelter, suddenly, under the control of more than a dozen eighth-generation robots, all the giant steel gates were closed one after another.

The protective gates of the shelter have a total of three floors, and there are three gates without a floor, each gate is built of defensive steel plates up to three meters thick, no matter how terrifying the destructive power of those dark rays is, it is impossible to destroy these nine gates in a few minutes.

After seeing that all the combatants had withdrawn to the shelter, Ling Feng immediately teleported all the dozen or so eighth-generation robots that controlled the gate into the Infinite Arsenal, because he needed them to help him later.

Just after all the giant gates of the underground shelter were closed, tens of thousands of small flying machines appeared in the sky above the airport outside the gates.

The aircraft were already less than a kilometer away from the entrance to the shelter.

Far away, these alien invaders found that outside the entrance of the underground shelter, a large number of main battle mechs were piled up.

Thousands of main battle mechs, like small iron mountains, densely blocked the entrance of the shelter, creating a steel defense line hundreds of meters wide.

Suddenly, tens of thousands of alien aircraft launched tens of thousands of dark rays at the same time, densely covering these mechas.

In a few minutes, all the thousands of mechs blocking the entrance were destroyed! (To be continued......)