As the flame dissipated, the human figure in the raging flame showed its original appearance. It was a human figure whose whole body was naked but whose outer layer was interlaced by black and red substances.

Duan Fei closed his eyes in mid air and recalled the scene that had just happened to him. He was slightly different from God because he was worried about the situation of Yanhuang city. Even if he had semi-finished products of phagocytic shield in front of him, he still stubbornly withstood 80% of the attack of flame cannon. Duan Fei, who thought he was waiting for his body to recover, didn't expect that at the moment when the flame cannon broke through the phagocytic shield and burned his body, the third fragment of evolution key flew out of his pocket and stuck to Duan Fei's chest, releasing unparalleled light.

Under this beam of light, all the evolutionary forces of the fragments of the evolution key were poured into his body, and the Hellfire power homologous to the flame cannon was also attracted. When he felt that his body was about to be burned into a roast pig by two hot waves from inside and outside, a cool feeling was introduced into his body from the center of his eyebrows, swam all over his body and spread all over his body.

Duan Fei, immersed in the cool feeling, doesn't know what's going on, but the current situation makes his consciousness continue to choose to immerse himself in this comfort.

Hearing the sound of "crackling" coming from outside, Duan Fei woke up and saw the light red light flowing in front of his eyes, which covered his whole body and even his eyes. At first glance, I only found that a force from the depths of the body was released to cover the body. The flame cannon of the flame mutation tiger was fully transformed into its own life energy, and the evolution key also activated the hell flame and evolved it into a power beyond level B.

The flaming flame that now covers the body is an upgraded version of Hellfire's "flame transformation" - body of fire.

Under the protection of the body of the fire prison, let alone the mutant beast with peak strength in the later stage of level B, even the monster in the early stage of level a can't destroy the body of the fire prison in an instant.

Looking at the physical changes, Duan Fei was more surprised than shocked. The evolution of Hellfire at this level shows that he is not far from class A. he believes that as long as he experiences another war and upgrades to class A, that is, things on the iron plate.

Looking at the dying flame mutant tiger not far away, Duan Fei doesn't need to worry about it any more. All his life energy is used to launch the flame cannon. Taking advantage of this emptiness, the warrior soul Sting has been released to the final stage. Even if it still has strength, it can't release any large-scale attack.

The two fingers merged into a fire prison killing sword. When they rushed to the flame mutant tiger, they were cut in two sections. There were two Shua sounds. The elephant like flame tiger fell to the ground. At the same time, the flame crystal rolled to the ground.

Although this battle absorbed the fragments of the evolutionary key originally intended to take back and study to enhance the combat effectiveness of the awakened forces, it unexpectedly obtained two unexpected gains: one is that the Hellfire ability has successfully evolved to class A, and the other is that it has obtained the gene core of a class B metaphase mutant beast and a flame attribute crystal.

Just when Duan Fei wanted to release the body of the fire prison, the avatar spread his wings and rushed back to the Yanhuang base, he found that the clothes he wore had long been burned by the hell fire. Once the Avatar was removed, he was naked.

After thinking about it, Duan Fei continued to maintain the incarnation state of the fire prison. With a bang, he spread his wings and flew into the air, flying towards the Yanhuang city in the distance.

When Duan Fei hurried back, the whole people in Yanhuang city were terrified and looked up at the sky vigilantly, but no one knew what had happened. Before that, the sky that had been good suddenly appeared a large area of gray smoke like haze. Yanhuang City, which was at the forefront of the human camp, did not dare to relax in the face of this emergency, but an incredible scene happened when the awakened troops and troops were being mobilized to the city wall.

All the generators in the area covered by gray smoke and dust stopped operation, not because of failure or lack of power, but simply stopped operation. Soon, this strange thing spread to the whole Yanhuang city. In the fog, all electrical appliances in the city, including radio, were shut down. It was not easy to recover to Yanhuang City, which can maintain the normal life of survivors in the city, and returned to the initial state of resource emergency at the end of the day.

I don't know where the enemy is. No one dares to shoot indiscriminately. However, the darkness around makes every soldier's heart tense all the time. If he hadn't received strict training before, he should always keep his reason to analyze. I believe that the whole Yanhuang city will be in a mess now. With the passage of time, the concentration of gray smoke has also increased. Originally, you can see the situation within ten meters around. Now, ten minutes later, even the gun in front of you can only see half the outline.

The awakened troops and troops that have been dispatched can only stand by in place. In order to protect everyone in the team as much as possible, they have formed a small formation with the awakened troops as the center and the troops as the outer circle.

Li Feng, who has shadow ability, is in charge of a very important role at this time. Because his ability is not affected in this harsh environment, in order to stabilize the morale of the army, he repeatedly transmits information back and forth between the large foreign troops and the command center.

With Li Feng's ability, he can transfer the whole foreign troops back in just five minutes, but in this way, the whole Yanhuang city has become passive. This is not passive on the battlefield, but passive when attacked in his own base.

If everyone is transferred to the safe vault, they will undoubtedly become caged birds, allowing monsters outside to destroy the whole base at will. Maybe even the people will have no time to escape. In order to maintain a state of relative confrontation, the large foreign troops outside cannot be transferred back. They must stay outside and be ready to fight at any time.

"Everybody! Can anyone tell me what's going on now?" Luoyang City, which rushed from the city master's residence to the command center through a tunnel, asked, "is it a mutant beast?"

"The final work report of the virus detector shows that there is no large-scale virus movement within the monitoring range, which cannot be a mutant animal attack!" The person in charge of the virus control center replied.

"The drones dispatched outside can't transmit the information back. We can't know if this is the only case in our base!" At this time, the vice captain of the investigation team also said.

"The current situation shows that all machines running on electricity can't work. We're an isolated city now!" Clapped the closed screen in his hands, and the head of the resource management office said in disappointment.