Although the overwhelming zombie army is still endless, the obviously expanding empty space under the city wall shows that its magnitude is shrinking.

Seeing this scene, Liu Chang's inner worries were all relieved, but there was a slight regret. As Ai Qi said, with her current strength, the zombie lineup in front of her is indeed not enough to practice.

"Aiqi, it seems that I overestimated the enemy in advance, and the highest level among these zombies is no more than a fifth-order blood dragon. Those imaginary horrors have not appeared. Liu Chang couldn't help but ask with a depression in his heart.

Ai Qi's two big eyes were bent, and her pretty face was full of bright smiles: "Sister, I know you have itchy hands, but don't worry, now the battle has just begun, believe me, there will be a chance for you to perform in a while." ”

Liu Chang smiled, thinking that the little girl was comforting her.

Unexpectedly, at this moment, a mutation protruded on the battlefield!

As soon as Aiqi's long golden hair swept a piece of zombies, she suddenly felt a dangerous aura coming from the top of her head, and she didn't care about anything else, her body suddenly retreated dozens of meters away in an instant, and at the same time, Wang Yuanyuan, Ye Xiaoqian, Kate, Lisa, and a group of evolutionaries were also oppressed by this fatal crisis, and made the same action as her.

As soon as they dodged out, more than a dozen behemoths fell from the sky, their huge black paws completely covering their previous foothold, and patches of zombies were trampled to shreds, and some low-level evolutionaries who couldn't dodge were also tragically reduced to pulp.

The force of their impact on the ground made the ground tremble, and the defenders on the walls were shaken in a trembling heart.

Surprised, everyone raised their eyes to see that there were more than a dozen monsters that were more than twice the size of the King Kong zombies.

They were pitch black, their huge heads resembling a house, their thick limbs like four pillars of optimus, and their solid muscles bulging countless fist-sized spheres on the surface of their bodies, which were covered in a layer of blue light, and they could be felt to be harder than metal just by looking at them.

Sonar tanks!

This word flashed in Liu Chang's mind.

Sonar Tank, a sixth-order evolutionary zombie, evolved from the fourth-order King Kong zombie, is the second type of zombie that has evolved after the outbreak of the apocalypse, that is, after the Wild Runner.

The Sixth-Order Evolved Sonar Tank is significantly larger in appearance than its protoplasma, the King Kong Zombie, and its musculoskeletal strength has become harder after the second evolution, and the Enraged Sonar Tank can even tear apart heavy armored vehicles made of all-alloy.

Of course, it's just these external abilities, if that's all, it can be called a giant zombie at best, and the title of sonar tank is naturally related to sound.

The evolved sonar tank has a thick, powerful vocal cord in its throat that can unleash powerful sonic attacks with a roar of rage, and can reach an effective range of more than a kilometer.

Not only that, but it can also emit ultra-low frequency infrasound waves, the most terrifying thing about this sonic attack is that its special frequency cannot be captured by normal people, only young children whose hearing has not yet degraded and new humans who have opened their five senses can detect it.

Once detected, the infrasonic wave will quickly merge with the resonance frequency of the human body, disturbing the human nervous system, making the enemy instantly lose combat effectiveness, and a long-term attack can cause irreversible damage to the central system, and even endanger life.

It has to be said that this is a shady trick to dig up seedlings and break their roots, and it is directly aimed at the living force of human beings, and it is bound to bury the future and hope of human beings.

As soon as the sonar tank appeared, more than a dozen large black holes opened in unison, roaring at the human evolutionary on the opposite side.

Roar Roar Roar Roar !!

The powerful sound wave swept like a mountain of seas, and everyone on the ground was thrown into the air by a substantial thrust, and even the defenders on the city wall were lifted more than ten meters away by the shock wave, and a wail filled the scene in the chaotic sound of falling to the ground.

The few dozen remaining evolutionaries spat blood from their mouths after falling to the ground, fainting directly after a little more severe, and after a moment, only five figures in the crowd who fell to the ground stood up again.

They were, of course, those five advanced evolutionaries.

In the raging sound waves, the only ones who did not lose their hair were Liu Chang and Ai Qi, the two Divine Gate Evolutionaries.

Liu Chang witnessed such a tragic scene, and his slender eyebrows immediately frowned. She shook her delicate body, and the next moment she came to the city. Liu Chang bent down, picked up those who were seriously injured and fell to the ground one by one, and then shook his body again, and moved them to a safe area in the city. Ai Qi also did it with her, and the sisters couldn't see it clearly at all, but in just three or two seconds, dozens of wounded people were all transferred by them.

After dealing with the wounded, Liu Chang thought of joining the battle below, she wanted to see how powerful these monsters that could cause such powerful destructive power just by sound?

Ai Qi stretched out his hand to stop her again, "Don't worry, sister, it's just an appetizer now, and the ruthless characters we really need to deal with are still behind." ”

Liu Changqiao's face suddenly flashed with displeasure, "Aiqi, are you taking human life as a child's play?" Even if you don't care about my friend's life, there are still two of your subordinates down there! ”

"My sister misunderstood." Edgie explained unhurriedly, "The reason why I let it go is only because I believe that they have the absolute strength to defeat these big guys. What's more, for an evolutionary, the more dangerous the situation, the more powerful the opponent, the more helpful it is for their own breakthrough. I know you can't rest assured of them, but you just believe me once, it's really not good, and with our reach, we are fully capable of saving them at a critical moment. ”

Liu Chang was reluctant to be the boss in his heart, but after thinking about it carefully, although Ai Qi was only fourteen years old, she had awakened the Divine Gate to evolve for more than a year, and her combat experience was not comparable to that of herself, a fledgling rookie. There must be some truth in her words, wait and see what happens, and if you can't do it, you can't make a move.

Looking down at the city, the Nameless Evolutionary had already launched a counterattack against the sonar tank after getting up from the ground.

Wang Yuanyuan, who was impatient, bore the brunt of the attack, she saw that her opponent was strong, and as soon as she made a move, she used the stunt of Burning Sky and Fire Phoenix. After being promoted to senior, she no longer had to overdraw her potential when she used this stunt, and the power of this time was not the same as the time she dealt with a female ghost in the assessment.

A huge fire phoenix formed in the void above her head, this ancient divine bird, born with awe-inspiring power, its wings spread out is more than ten meters wide, the fire phoenix raised its head and let out a terrible chirp, wrapped in the rolling heat wave towards the group of huge zombies to pounce.

The momentum of this move was amazing, and the sun in the sky reflected by the blazing light lost its color. However, when this ancient divine bird composed of flames crashed into the huge body of the zombie, a shocking scene happened.

With a stabbing sound, the fire phoenix that hit the zombie was like a lit match that quickly extinguished after encountering water, such a powerful stunt was ineffective!

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(End of chapter)