As a result, instead of cessing the offensive on the northern front, it increased investment, and a large number of senior transcendents were drawn from all fronts around Dragon City to support; The Transcendent Pagoda and various undergraduate colleges and universities also took out the cultivation resources that had been accumulated for decades and pressed the bottom of the box as rewards; The major psionic and rune science and technology research institutes, monster research institutes, and zombie research institutes have also come up with various black technologies to be verified, and they have the posture of "the rise and fall of Dragon City, fight here".

However, the murderous human beings, after the torrential rain and the flooding of the lake, found that something was even more troublesome for them.

Monsters are evolving.

In the past, monsters were disturbed by psionic energy, their genes were not stable, and the speed of evolution and mutation was hundreds of times faster than that of earth creatures.

And now, their evolution speed seems to have increased tenfold compared to the past.

It's like the gears of evolution are broken, and the limits of speed are broken, whether animals, plants, fungi, bacteria, or viruses, all of them are mutating at an incredible speed.

Initially, evolutionary variation was confined to the organ level.

The Ghost Porcupine has become longer and sharper, and can shoot farther, from being able to withstand explosion-proof shields, to being able to pierce through alloy armor by half an inch, and once pierced into a human body, even the skull may be pierced.

The hundred-eyed toad can jump higher and secrete more acid, which becomes more corrosive and volatile, forming an all-pervasive acid mist at a height of one or two meters above the ground.

Even if humans dodge an acid attack, they are easily exposed to and inhaled acid mist, causing retinal and respiratory burns.

The bite force of the wolf crocodile has also been greatly improved, and the evolved and mutated wolf crocodile, with two pairs of chainsaws in its mouth, bites the human wearing the enhanced exoskeleton in one bite, and launches the "death spin", which is really possible to grind and tear off the human limbs and the enhanced exoskeleton.

The mutations in the organs alone were enough to give low-level transcendents a lot of headaches.

And the fighting intelligence of the monster has become more and more developed.

It's as if all the stupid monsters have been killed by humans, instead providing space for the more cunning ones to survive and breed.

They know how to use a variety of tactics to maneuver with humans - setting ambushes, sneak attacks, playing dead, luring the enemy deep and even encircling the point to send reinforcements.

Even the lone monster that was originally single-handed, has gradually developed the habit of being in groups.

Monsters that originally had the habit of living in groups even condensed several or dozens of settlements together to form a mighty beast tide, causing unbearable blows to the lonely human hunters.

What's even more terrifying is that the monsters of different races have faint signs of uniting.

Originally, monsters were natural enemies of each other, and before humans crossed into the other world, they fought each other and devoured each other for an unknown number of thousands of years, and it was hard to imagine that some kind of lion and tiger monster could cooperate with artioculated monsters such as sword halberds and demon pigs, let alone join forces with reptilian monsters.

From the perspective of species, the difference between the sword halberd demon pig and the hundred-eyed toad is not as big as the gap between the sword halberd demon pig and humans, after all, the sword halberd demon pig and humans, no matter how strange they are in each other's eyes, are mammals after all.

But now, under the powerful offensive of human beings, the monsters facing the threat of survival have broken through the shackles of instinct and gradually discovered the benefits of multi-class cooperation between different races.

At this moment, human beings are even more anxious.

Originally, in the face of a single type of monster, even if it was a tide of beasts, he could always prescribe the right medicine and find the best way to restrain it - if it was a monster that was good at melee combat, he would stick to the fortress and wait for the monster to rush up and die in front of the human heavy machine gun and bazooka; If it's a monster that specializes in long-range attacks, start with a carpet bombardment, then obscure their vision with smoke bombs, and then the transcendents rush up and fight for bayonets.

In the "monster wars" of the past few decades, these simple and crude tactics have never failed.

But now, the classic tactics of "textbook" have led to more and more tragic casualties.

In the east and west bases, there has long been no laughter.

Almost every day, the bloodied wounded were carried back to the base by their comrades who were also covered in bruises.

More young, promising new transcendents were carried back in black body bags by numb classmates.

I was lucky to be able to find the whole corpse.

Many people have stepped into the swamp in the depths of the mist, and in a matter of seconds, they have disappeared without a trace—perhaps one day, humanity will conquer the Shattered Star Lake and drain all the swamps before they can find their mutilated bones deep in the mud.

There was a tragic atmosphere in the base.

But whether it is the predecessors who have seen the more tragic war burning the whole city, or the newcomers who are not afraid of tigers in newborn calves, they have not lost their fighting spirit.

Instead, with a hundred times the passion, he devoted himself to this battle that would determine the future of Dragon City.

All kinds of new weapons, new technologies, new exercises and new ideas have been hotly discussed and sought after, from ordinary soldiers to transcendentals, all of whom can't wait to find the "secret weapon" and solve the escalating problem.

And about the evolution and mutation of monsters, it is the hottest topic of the students during the evening "sleeper talk".

"The learning speed of the monster is originally very fast."

One night, during the "Sleeper Talk", Meng Chao and his classmates said, "We didn't perceive this because almost all the monsters that were originally coerced by the ripples of time and space and strayed into Dragon City were killed by us, and they didn't have a chance to learn at all."

"Except for the doomsday beasts that are strong enough to be able to enter Dragon City and rise away under the encirclement and suppression of the powerhouses of the God Realm, the ordinary monsters and low-level super beasts that survive in the wilderness do not understand the horror of human civilization at all, and have no experience and motivation to upgrade.

"But with the large-scale expansion of human beings, we have come to the home field of monsters to fight, taking advantage of the environment, many ordinary monsters may be injured but not killed after coming into contact with us, and escape.

"There is a saying in the army that veterans who have survived several fierce battles and can return to battle are worth five to ten ignorant recruits, and the same is true for monsters.

"When these monsters flee back to their lair, they will naturally be able to pass on their combat experience against humans to more monsters, or use some kind of ...... The mysterious method activates the power contained in the deepest genes, and comprehensively upgrades the limbs, viscera and brain, making it more suitable for fighting against humans.

"Natural selection, survival of the fittest, I believe that to survive in such a cruel environment as the Monster Mountain Range, no monster is stupid and weak, in the past millions of years, they have never encountered such a strange opponent as humans, they will be caught off guard by us, but after half a century of survival of the fittest, those monsters that can't adapt to compete with humans have almost been eliminated, and the monsters that survive will surely bring us more and more trouble.

"Therefore, we must no longer hold the luck mentality of 'winning with one drum', the real monster war has just begun!"

The students were silent.

After a while, I don't know who complained: "There are too many monsters, I originally thought that we cleaned 70% of the area of the Shattered Star Lake and killed most of the monsters, but I didn't expect that after just three or five days of heavy rain, these beasts continued to emerge from the swamp, and became more fierce and cunning."

"You say, forget about snakes, insects, rats and ants, even the number of jackals, tigers and leopards is so much, it doesn't make sense at all!

"Where are they hiding, what do they depend on for food, and how do they sustain such a large population? It's like after coming to the other world, in addition to the distortion of the laws of physics, even the laws of the ecosystem and the food chain have been broken! ”

"Perhaps, the monster wasn't a natural product in the first place?"

After a day of fighting, exhausted, Meng Chao muttered in a daze, "It's a biological weapon that can be mass-produced." ”

The classmates were slightly stunned: "What did you say?" ”

Meng Chao was also stunned for a moment.

He didn't know what he was talking about.

……

The classmates have been getting more and more unable to see through Meng Chao recently.

The most puzzling point - was he lucky enough to choose Gu Jianbo, the founder of "Extreme Flow", as his exclusive mentor at the beginning of the school year, or did he really master the unknown secret and know that Extreme Flow was about to shine?

That's right, when the monster war has escalated in full swing and the old schools, weapons, and exercises have been shattered, new schools, trends of thought, and tactics have also stepped onto the stage that will eventually belong to them.

The most striking of this is undoubtedly the extreme flow.

In the past month or so, the number of classmates who have followed Gu Jianbo through distance education with Meng Chao has increased to nearly one hundred and fifty.

With the support of the dean of the Martial Arts Department of the Agricultural University and the sponsorship of the Yan Group, the special cultivation cabins for the extreme flow that were transported to the front line also reached ten, which could basically meet the needs of low-level transcendents to cultivate for half an hour a day.

Although except for Wu Wu and Chu Feixiong, most of the classmates did not have the monster-level strength of Meng Chao, who could withstand the dual stimulation of ultra-high concentration of genetic drugs and super strong currents, and penetrated 1024 branch veins in one go.

But even if only one or two hundred branch veins are penetrated, or even thirty or fifty branch veins, the perception is slightly increased by 5%, and when it comes to the battlefield where danger lurks and life and death are decided in an instant, the result is very different.

Before the rainstorm, whether or not to cultivate the Limit Flow did not have a big impact on the results of the battle.

Because those who cultivate the limit flow are a group of people who are relatively low in the ranking of freshmen in various schools, it is difficult to obtain a reborn change in just ten days and a half, plus Meng Chao and Gu Jianbo both suggested that they should try to restrain their impulse to construct a spiritual magnetic force field if they can not let go of their nirvana, and the conversion of the old and new combat modes has brought about a short-term inadaptability, and their data and battle process are lackluster and obscure.

After the rainstorm, everything is different.