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After coming out of the underground laboratory, whether it was Wang Tianfang or Chen Xiao, their faces were quite solemn.

Chen Xiao's feelings were the most direct, and he got a lot of important news from Xu Bingshan.

The secondary biological mutation is just the beginning, Xu Bingshan's guess, in addition to the direct result of the mutation this time.

In the coming time, the DNA combination of all the mutated organisms will become more perfect.

The rate of evolution and mutation will also increase.

In short, after the secondary mutation, all kinds of organisms will evolve and mutate more rapidly.

However, the human awakened are not able to get any help from this mysterious toxin, or there is no way for humans to get it now.

This is the result of Xu Bingshan's research so far. Although this result cannot be proven by time, it is not far from ten.

What will happen in the future, Chen Xiao is not in the mood to care about it now, there are already many difficulties in front of him.

He was only at level thirty now, and a large number of third-order mutant creatures were probably all fourth-order, or even stronger.

Normal monsters grow to become bosses, while normal bosses are upgraded to elite level.

It is certainly not a good thing in the long run, but now he can't think about it, as long as the impending crisis is resolved, he can have the energy to think about more long-term things.

The so-called immediate crisis is actually a direction in Chen Xiao's heart, so that he can survive in this environment.

If you want to survive, you don't mean always hiding in a corner, away from those dangers.

On the contrary, he wants to quickly improve his strength and use his strength to ensure his survival.

As long as the strength is improved, it can have the guarantee of survival.

Blindly escaping, the final result is still unavoidable, and the world will become more dangerous.

If you want to upgrade quickly, in fact, there has always been a most direct way, the upgrade volume given by the system.

Challenge bosses that are 10 levels higher than yourself to get a shortcut to directly level up. Compared to upgrading volumes, side quests are not a problem at all.

And the system set up such a hidden reward system, obviously to let Chen Xiao take risks as much as possible.

All along, Chen Xiao didn't have such thoughts, and now he knew that compared to the speed at which mutant creatures could improve their strength, he was too slow.

If you want to level up by accumulating experience, it is impossible to catch up with the angle of mutated creatures.

The Millennium Dryad and Phantom Spider, which had always unsettled him for a long time, must have also grown greatly in the secondary mutation.

The gap is already incomparably huge, and if you don't work hard now, it won't take too far to reach the future, and I'm afraid you'll already have no place to bury.

There is no need for these overlord-level creatures to come to the forefront, those ordinary mutated creatures are enough to take their own lives.

At the commanding heights of the security zone, a monitoring tower towering in the center of the security zone, Chen Xiao came here immediately after leaving the laboratory.

"I've always had faith in you."

On the artificial lookout platform at the top of the surveillance tower, Liang Wanting said calmly.

"I won't let you down, or you won't have time to disappoint me." Chen Xiao stared at every corner outside the safety zone and assured seriously.

"Brother, the big monster is coming, Xiao Ai will help you. No one can hurt you. Xiao Ai waved the thin long sword in his hand, and on the tip of the long sword, the golden ribbon fluttered gently in the wind and rain.

"Little Ai." Chen Xiao showed a smile and stroked the long red hair on Xiao Ai's head.

was favored by Xiao Ai, Xiao Ru looked jealous, pulled Chen Xiao's other arm, and said, "Xiao Ru will not let anyone fluctuate my brother." ”

The heavy atmosphere was instantly broken by the two little Lori, and Chen Xiao's face slowly relaxed.

The three people around him are his greatest support now, not only for help in battle, but also for his soul now.

Wandering life, since his grandmother passed away, he has never felt at home again.

In the past ten days, this feeling has been invisibly broken, and the soul has found a place to live.

Life once again feels the direction of home, and the soul has a peaceful harbor, no longer wandering.

Compared with the cold end times, Chen Xiao felt that he was lucky at the moment, and there was an emotion that could give him a sense of belonging.

However, before Chen Xiao could feel this peace of mind, he faintly heard a discordant voice in the distance.

The voice came from the east of the security zone, Chen Xiao didn't think much about it, and said, "Let's go over and have a look." ”

As soon as the words fell, he ran towards the distance from which the voice came, and after getting out of the fence of the safe zone, the voice became clearer and clearer.

When they came to the national highway about three kilometers east of the safe zone, under the gloomy sky, the torrential rain fell on a huge mutant creature on the road.

In front of the mutant creature, a thin figure was already out of breath at the moment.

The cement road of the national highway was already full of potholes, and the large amount of water on the road quickly filled these potholes.

Obviously, the sound Chen Xiao heard was the sound of a fight that broke out here.

It's just that their arrival obviously brought the battle to a halt.

Chen Xiao's eyes naturally focused on the mutated creature for the first time, this was a duck, a mutated huge duck.

However, this duck may no longer be called a duck, because other characteristics do not resemble a duck at all, except for its physical resemblance.

Level 39 Mutant Duck ......

It's not a boss, it's just a very ordinary mutant creature, and it doesn't even have any highlights at all except for its relatively high level.

Of course, if that terrifying appearance is a highlight, it can indeed scare most people to tears.

The feet are the same as those of a duck, the neck is as tall as a small head, the sides of the flat beak are densely barbed, and the feathers like steel thorns on the body are raised high.

The mutant duck made Chen Xiao uninterested, and at this time, Liang Wanting suddenly whispered: "Look at that person, isn't it very familiar." ”

Hearing this, Chen Xiao set his eyes on the man who was confronting the mutant duck.

"It's familiar, because we saved him." Chen Xiao recognized this man at a glance.

Hearing Chen Xiao say this, Liang Wanting also reacted immediately and said, "The man we rescued from the big mantis in the café." ”

"Yes, if I'm not mistaken, he should be called Yao Rui." Chen Xiao nodded, looked at the man and said.

At the same time, the mutant duck seemed to become frantic when he saw four more people coming.

Quacked twice, as if warning Chen Xiao and the others, and then opened his hideous upper and lower jaws and bit directly at Yao Rui.

Yao Rui, who had never dared to be careless, just glanced at the four people who came, and then focused on the monster in front of him.

The mutant duck with a height of seven or eight meters made him already strenuous and energetic, so how could he have the energy to take care of people at this time.

When the duck attacked again, Yao Rui's legs also suddenly exerted force, and he jumped backwards and directly separated from the duck's lips, and on the road, the duck's beak came into direct contact with the ground, leaving a deep pit.

"Xiao Ai, kill this big duck." Chen Xiao glanced at the man who was already out of breath and ordered Xiao Ai.

The red-haired little Lori, who was already eager to try, waved the blood drink in her hand for the first time.

A bright bolt of lightning fell from the sky, illuminating the surroundings in an instant, and the lightning fell directly on the head of the mutant duck.

In a moment, with the sound of thunder, the smell of burnt paste also reached everyone's nostrils.

The sudden thunder startled Yao Rui, and when he saw a large piece of charred black on the top of the duck's head, he instantly understood. Hurriedly dodge to the side so as not to be affected.

The attacked duck changed its target as soon as possible and ran directly towards Chen Xiao and the others.

Liang Wanting was about to make a move, but was immediately stopped by Chen Xiao, and at this time Xiao Ai waved her hands again.

In the darkness, just on the way of the mutant duck, a sea of fire suddenly appeared, and the mutant duck directly loaded into the sea of fire.

Fierce flames burned out of thin air on the earth, illuminating the surrounding darkness as if it were day, and a large amount of stagnant water on the ground was rapidly evaporating, and the torrential rain falling from the sky even evaporated directly above the wall of fire.

The mutant duck that crashed into the wall of fire was immediately unlucky, and the steel thorn-like feathers on its body burned directly, but before it could run out of the wall of fire, Xiao Ai quickly released several walls of fire, and the burning range instantly expanded a lot.

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