Chu Yunyun condensed an ice blade and slashed a fierce second-order mutant bird head-on, the blood spilled, and it was instantly frozen into ice crystals, but the next mutant bird had already attacked from the side, Chu Yunyun waved the ice blade to fight back, and this mutant bird was also killed with one blow.

However, below, behind, and above, there were mutant birds flying in, almost arriving together, and it was extremely inconvenient to be in the air, and the body was limited, unable to move flexibly, and could only use several times the strength to forcibly twist the body, and in a hurry, it only blocked the attack of the two mutant birds, killed one, and severely injured one, and was scratched by a second-order mutant bird with a wingspan of less than two meters.

Chu Yunyun was still like this, and Hai Xin was even more struggling, and after barely resisting the attack of the two second-order mutant birds, he was hit by a first-order mutant bird that followed and flew out.

The pilot is even more difficult, after the body is disconnected, he did not give up the helicopter, but with the help of the small half of the cabin in the pilot position as cover, his strength is only the first order, without the cover and protection of the cabin, in front of this group of mutant birds that are at least the first order, the hope of survival is too low, even so, he was still attacked by a second-order mutant bird, and the small half of the cabin was directly torn apart, and he was also injured and flew out.

The most relaxed situation was Yu Xi'er, she covered her whole body with blood soldiers, and all the second-order mutant birds came at her, but they couldn't hurt her at all, but she killed five of them one after another.

After a wave of impact from the mutant bird, the positions of the four people were completely scattered, and in a way that they could not control, they fell towards the deepest part of the crack, and the attack of the mutant bird continued, and there was an endless posture.

By the time Dong Yin drove the homemade large bamboo dragonfly to arrive, the positions of the four had been completely dispersed, and at this time Dong Yin found a very embarrassing thing, he couldn't turn around, he could only control the bamboo dragonfly to move up and down, and he wanted to move sideways but couldn't.

Seeing that the pilot closest to him below was about to be attacked and killed by a second-order mutant bird, Dong Yin had no choice but to make a vague move and kill it with one blow, but the momentum of the second-order mutant bird's attack did not change, and it still hit the pilot, but fortunately, the second-order mutant bird was dead, and the pilot was just hit lightly and temporarily avoided the danger.

Temporarily saving the pilot, Dong Yin's eyes were slightly sunken, thinking of the structure of the helicopter, he naturally didn't understand this, but he still knew the shape of the helicopter, in addition to the largest propeller, there was also a small propeller rotating vertically at the tail of the helicopter, the principle, Dong Yin thought about it for a while, and instantly turned white.

Immediately controlling the change of the blood soldier, the long pole in his hand began to extend, and immediately turned ninety degrees when it reached his feet, and then moved laterally, Dong Yin's feet landed on the crossbar, and the shape of the end of the crossbar changed, forming a small vertical propeller with two leaves.

Dong Yin immediately controlled the small propeller to rotate, blowing the air to the side, and with the experience of controlling the bamboo dragonfly, this time there were no unexpected accidents, his rudimentary helicopter turned, but it only rotated in place, and did not move.

He didn't know exactly how the helicopter worked, but the principle of flight Dong Yin had already been whitened, and he controlled the change of blood soldiers again, and the crossbar extended in the opposite direction, changing at the other end to form a small propeller, which was facing Dong Yin and perpendicular to the small spiral at the tail end.

Winter Yin controls the energy to be delivered to the small propeller at the front end, and with the rotation of the front end, the self-made version of the improvised aircraft finally successfully moves laterally, so that the large propeller above the head controls the ascent and descent, the front end small propeller controls the front end to move back and forth, and the tail end small propeller controls the left and right movement, and finally can really fly freely.

It's just a little flawed, Dong Yin's hairstyle has been blown up, and there is a lack of a wind shield, but it's still important to save people, the bottom of the crack is not safe, and the stronger mutant birds are gathered in the depths, if he goes late, it will be troublesome to rescue people when the time comes, he doesn't want to expose his strength now, and paddling behind them is the most comfortable thing.

Dong Yin controlled the self-made blood soldier flying machine, and flew to the pilot first, and the pilot used the corpse of the second-order mutant bird to not be attacked by the mutant bird, but the fate of continuing to fall did not change, and Dong Yin's blood soldier aircraft also made a rotating wind sound.

Coming to the pilot, the pilot looked at him in surprise, Dong Yin didn't care so much, this was a person sent by the military, helping himself and others to suffer, but he didn't want anything to happen to him.

Ignoring the pilot's surprise, Dong Yin pulled the pilot up, let him grab the vertical pole, and then controlled the helicopter to fly towards Yu Xi'er.

Yu Xi'er was free-landing, and after killing three second-order mutant birds one after another, no mutant bird dared to attack her for a while, at this time, Yu Xi'er had already discovered Dong Yin, and immediately came to her senses after seeing Dong Yin's improvised helicopter, and immediately took out blood soldiers to save herself.

Seeing this, Dong Yin immediately turned around and flew towards Hai Xin, the farthest away, there were still a lot of mutant birds around, Dong Yin originally wanted to pull Yu Xi'er and let her help resist the attack of the mutant birds, so that it would not be too difficult.

Hai Xin was already in danger under the attack of several second-order mutant birds, and it was very difficult to resist, but the blood soldier flying machine had already attracted the attention of some mutant birds, especially the four remaining mutant birds besieging Yu Xi'er, one second-order and three first-order, which could not please Yu Xi'er, so they targeted Dong Yin and the pilot.

It was inconvenient to control the helicopter to fly too fast, Dong Yin just wanted to save everyone without exposing himself, and in the blink of an eye, the second-order bird was already approaching, extremely fast, far exceeding the speed of humans of the same level, attacking Dong Yin and the pilot from the side.

Dong Yin controlled the small propeller at the tail end, and the self-made helicopter instantly reversed its direction, and the small propeller at the front end was facing the second-order mutant bird, and the small propeller at the front end rotated wildly, and the strong air flow blew towards the mutant bird, and the helicopter jerked back.

The second-order mutant bird hit fruitlessly, and it quickly circled in the air, and attacked again rapidly, and the other three first-order mutant birds also arrived almost at the same time, attacking from different directions.

The pilot unleashed a cyan blade of translucent light, forcing back a first-order mutant bird.

The second-order mutant bird followed the other two mutant birds, and one hit the propeller overhead, the speed of the propeller was not fast, and the rudimentary helicopter instantly lost control and flipped out, but the second-order mutant bird was safe and sound, and did not stop catching up and attacking.

The two first-order mutant birds arrived first, and the blood soldier flying machine was still flipping, and Dong Yin and the pilot could only hold on to the crossbar and vertical pole to prevent themselves from getting out of the blood soldier flying machine, but the body shape also flipped with it, and the mutant birds attacked the two of them separately.

In the chaos, Dong Yin grabbed the first-order mutant bird that attacked him, exerted the power of the second-order, pinched off the neck of the mutant bird with his bare hands, spread his hands, and let the corpse of the first-order mutant bird fall freely.

Next to him, the pilot grabbed the crossbar with one hand, and with the other hand he struggled to resist the beak of the mutant bird, and his body was scratched by the bird's claws, and his clothes were torn a lot.

Controlling the blood soldier aircraft, it soon stopped flipping and resumed its flight state, the second-order mutant bird approached the front again, and the two rotating propellers took the initiative to strangle the past, and the second-order mutant bird did not dodge or dodge, and thought that it would actively collide with it as before, and was strangled by the propeller in an instant!

Blood splattered, swept up by the air current, Dong Yin touched the blood stains on his face, and said secretly, "Bad luck!" ”

The last first-order mutant bird turned its direction, avoided the Blood Soldier Flying Machine, and flew into the distance, looking at this place in disbelief.

The blood soldier flying machine flew towards the depths of the crack, Hai Xin was still struggling to resist, besieging her several second-order mutant birds, the attack was very fast, although the talent was not high, there was no energy attack means, but relying on the brutal collision, bird claws and beaks, she was still injured.

The mutant birds continued to impact, one after another, without stopping at all, only fighting with Hai Xin for a moment at a time, and then retreating, circling around, and attacking again, Hai Xin was like an air sandbag, under the siege of several mutant birds, there was only the power to parry, and there was no room for dodge.

If it weren't for the flame energy protector, the mutant bird would have scruples, the situation would be even more unoptimistic, even so, Hai Xin was still in danger one after another, and his injuries continued to worsen, and he couldn't support it for long at all.

Dong Yin always pays attention to Hai Xin's situation, the three girls' combat experience is still lacking, it is not a good thing to go on like this, Dong Yin does not agree in his heart, in his opinion, only those who have been sharpened from life and death are considered strong, and they are more suitable for surviving in the rules of the Marauder Evolution System.

In the long run, they need to go through this more.

As Dong Yin controlled the blood soldier flying machine to approach, some of the mutant birds were attracted over, and among the mutant birds besieging Hai Xin, four suddenly separated, two second-order, two first-order, and three second-order continued to attack Hai Xin in turn.

These mutant birds, what breed before the end of the world, Winter Yin can't be seen, but after the baptism of the end times, fighting and evolution, all of them are very fierce and aggressive, their claws are very sharp, the scratching power is very strong, the beak of the bird is like a hook, and the penetrating power is also very amazing.

In the same level, not to mention the slightly delicate skin of human beings, even mutant beasts are difficult to resist, these mutant birds, in addition to fighting with each other for the airspace, fighting, all kinds of mutant creatures on the ground are their food sources, which naturally includes the former overlord of the earth, humans.

Today's earth is no longer up to human beings.

The two second-order mutant birds, with a wingspan of less than two meters, and their bodies are not large, but their attack momentum is very fierce, and they have the experience of besieging helicopters.

Dong Yin glanced at Hai Xin, nearly half of the pressure was reduced, Hai Xin finally freed up his hands to fight back, compared to the previous passive defense, the current situation has improved a lot.

On the other side, Chu Yunyun's situation was also a little embarrassed, but with the overwhelming strength of her third-order star disciples, although the mutant birds besieging her were the most, they only made her busy from time to time, and her life was not in danger for the time being.

Seeing this, Dong Yin was not in a hurry, controlling the Blood Soldier Flying Machine, and the four mutant birds were circling around, slowly killing them, during which the pilot also continued to take action, killing the two injured first-order mutant birds.

And the two second-order mutant birds completely aroused their ferocity, and they came out without fear of death, and there was a kind of posture of dying together.

With the continuous falling, the surrounding environment has become darker, and the visibility has dropped to very low, and I looked down at the depths of the crack, where I could already see the figures of some flying creatures, and there were many Star Disciple Third-Order Mutant Birds.

Thinking about it, in the face of the two second-order mutant birds that attacked fiercely again, Dong Yin no longer kept his hand, and directly strangled them, after this roundabout, he became more and more handy at controlling the flight of the blood soldiers, and the pilot watched silently from the side, and did not speak.

Finally came to Hai Xin's side, looking at her miserable appearance, Dong Yin silently said his guilt, the three second-order mutant birds turned to attack the big guy of the Blood Soldier Flying Machine, in their eyes, the one who violated their airspace was the biggest enemy.

Dong Yin took the opportunity to pull Hai Xin onto the crossbar, after a thrilling life-and-death struggle, Hai Xin was exhausted, and there were no scars on his body, blood soaked through his clothes, barely sitting on the crossbar, panting, unable to speak, Dong Yin was afraid that she would fall without paying attention, so he had to hold her arm with one hand.

Dong Yin was already very flexible in controlling the Blood Soldier Flying Machine, and he was very skilled in controlling and coordinating the speed of the three propellers at the same time, and the helicopter suddenly twisted and crossed an arc in the air, avoiding the two second-order mutant birds, and the huge blood soldier propeller directly strangled the third second-order mutant bird.

Hai Xin exclaimed in surprise, caught off guard, his butt slipped out of the crossbar, and grabbed the crossbar with his two arms behind his back, although he didn't fall, not to mention how awkward and uncomfortable the posture was.

Fortunately, Dong Yin grabbed Hai Xin's arm in advance, otherwise this time, maybe he would have been thrown out and fell, Dong Yin hurriedly pulled Hai Xin up.

"Thank you." Hai Xin lowered his head and whispered.

Dong Yin was embarrassed to respond, and said in his heart, if you know the truth and don't blame me, I will burn high incense, he had to say calmly on his face, "If you can't sit still, catch me." ”

Dong Yin originally grabbed the vertical pole with one hand, grabbed the crossbar with the other, and sat on it with his buttocks, very steady, with his strength, even if he didn't catch anything, he wouldn't fall, and the blood soldier flying machine suddenly twisted, it was originally controlled by him, and it wasn't an emergency at all.

Hai Xin still grabbed the crossbars on both sides of her thighs with both hands, her head down, Dong Yin didn't know what she thought, so she had to continue to grab Hai Xin's arm in case she lost her hip again.

At this time, the two second-order mutant birds attacked again, after the battle with Hai Xin, their feathers were partially scorched, but the momentum of the impact was still very fierce, even if the companion had just been strangled and died, he did not flinch at all, but was even more fearless of death.