Gao Jian gave an order, and the surging zombies crowded upstairs, filling every inch of the gap.

"It's good to be so arrogant once in a while. The crowd of corpses was overwhelming, and the number of zombies in the building was even smaller than Gao Jian expected, and his subordinates did not encounter much obstacle.

Quantity prevails, and quantitative change causes qualitative change. In the blink of an eye, it has reached the halfway point of the main building.

Here, Gao Jian can be regarded as encountering some decent resistance.

Sweeping layer by layer, the corpses were like locusts in transit, dutifully carrying out Gao Jian's instructions -- "leave no one behind."

But all living creatures were torn to pieces and scrambled for food. The team was scattered, and Gao Jian did not come forward, allowing those fragments of flesh and blood to stimulate the brutality in the nature of the corpses.

Halfway up the main building, about the seventh or eighth floor, a group of corpses rushed into the floor from the safe passage.

But the zombies that went first never came out, which attracted Gao Jian's attention and ran over with the core team to take a look.

Well, there's a huge mutant creature in the building.

The scales and armor are magnificent, like strange rocks and strange peaks. The eyes are like a grinding plate, and the square colored pupils inside not only make people sigh at the infinite mystery of biological evolution.

If the long tongue spits out, it must pierce the heart and brain, and the whole person will be swallowed by a big mouth.

This is a lizard with an extremely high mutation range, different from the one Gao Jian saw outside the People's Hospital. The evolution of the lizard in the level is fundamentally different from that of the lizard.

The lizard was slender, flexible, and well-proportioned, and could even climb vertical walls.

This lizard, on the other hand, develops horizontally, with a large belly attached to the ground, and some of its degraded short limbs can barely support its body. It looks cute, but it would be a mistake to think that it doesn't threaten.

The sacrifice was exchanged for an unusually thick scale armor with towering backspines, somewhat similar to the Jurassic stegosaurus. The direction of his mutation is not so much evolutionary as it is atavistic.

The only legacy on this earth that can be preserved from hundreds of millions of years of biological evolution is the gene chain hidden in the deepest part of the world.

Dominant, recessive, evolutionary, mutated, atavistic, each chain contains millions of biological codes.

If we compare the earth to a large testing ground, then our genes are the only result of this experiment.

The atavistic monitor lizard is more than four meters long, and the highest spike on its back has penetrated the roof, and the minimum height is three meters.

It was heavily protected like a biological tank, how could the flesh and blood of a zombie be its opponent.

Gao Jian frowned, why is there a mutant monitor lizard here, and what is its relationship with the corpse king on the roof? cooperation and symbiosis, mutual benefit and win-win, or is it food competition, the relationship between natural enemies who eat and be eaten?

Looking at the current situation, I am afraid that the last one is more likely.

This atavistic monitor lizard relied on ordinary zombies to break through its own defenses, and entered the territory of the corpse king to hunt and prey on zombies.

The Corpse King has no good way for a while, so he can only launch a corpse tide to besiege it every few days. But this is like delivering a meal to the atavistic monitor lizard, not only on time, but also enough in quantity, and the lizard master will simply stay and not leave.

The above is just Gao Jian's conjecture, this lizard doesn't seem to be too aggressive, and like most lizards, it doesn't like to move around when it's full.

In a matter of moments, the corpses of zombies were already piled up around the atavistic monitor lizard, and its strength was also at the top of the second stage.

"Roar. Gao Jian stopped the attack of the corpses, although he had a way to kill the atavistic monitor lizard, but the cost was too great, and his three thousand zombies were estimated to be lost in half.

There is no need, besides, his goal is the fifth corpse king's blood-colored crystal nucleus, and unlocking the genetic ability is the top priority.

The corpses retreated from the stairs on both sides, and Gao Jian glanced at the atavistic monitor lizard that had already started eating, and waved his hand.

"Leave it alone, kill the corpse king first, and put an end to the troubles. ”

Leaving the middle of the floor, the corpses are no longer in the way.

In fact, Gao Jian was still stained with the light of the atavistic monitor lizard, and the corpse king of the main building would encircle and suppress it every once in a while. Once or twice is not a bone-wracking event, but the more times it takes, the fewer zombies there are.

Killing all the way to the top layer, the induction between the corpse kings in the bloodline became more and more intense. Pushing open the last door, Gao Jian saw that there were only more than a hundred zombies standing in the open floor that had not yet been renovated.

And in the crowd of corpses, a zombie in a suit with a sad face also happened to look at Gao Jian.

The Corpse King met.

"Bullying more and crushing less, this kind of battle without suspense is too boring. ”

The flames of war were about to ignite, and the besieged zombies suddenly branched out a road, and the Suit Corpse King walked up to Gao Jian and let out a low roar.

"Is the king against the king?" his right hand was still unconscious, but this did not hinder Gao Jian's fighting spirit: "All stand back, I want it to die without regrets." ”

Bone spurs emerge from the left hand, tearing through the flesh, and slender blood vessels cling to the base of the exoskeleton.

Gao Jian and the Corpse King in the suit looked at each other.

One is winning, and the other is fighting.

The curtains by the windows were blown by the wind, and the sound of the wind above the tall buildings was a little ethereal.

"Roar!" The corners of his eyes were furrowed, the blood lines were dense, and the Corpse King in the suit instantly became furious, his hands were folded, and the outer skeleton was alienated into a huge battle axe.

Cut off your head!

"Berserk, similar to a weakened version of the Honkai personality, soaring in combat power, but will not recognize the six relatives and only know killing. ”

As early as the first time he saw the Corpse King in the suit, the biochemical warfare system told him about its genetic ability, anticipating the enemy's opportunity, and he had seen similar genetic abilities a long time ago.

Roll on the spot, dodging the other party's long-planned attack, in a berserk state, the Suit Corpse King only has the idea of killing in his mind, as long as it survives this time, it will be slaughtered by Gao Jian.

After paying a few wounds that were neither deep nor shallow, the furious suit corpse king slowly exhausted its strength, until it could no longer lift the giant axe with the mutated exoskeleton in its hand. Gao Jian walked around behind it like a ghost: "It's game over, it's time for you to say goodbye to this world." ”

Bone spikes pierced through the skull, and the suit was soaked in a pool of blood, and the color slowly turned black.

Becoming a king and defeating a king, Gao Jian's eyes were flat, and unconsciously, he had evolved from a low-level zombie who hid in Tibet and fled for his life to a Cunzài who could easily kill a second-order mutant corpse king alone.

Along the way, how many injuries and how much blood have been shed to refine this powerful physique. All attributes are improved, there are no shortcomings, but there are no characteristics either. This is the most perfect path of evolution, and it is also the most difficult.

The wind was still blowing outside the main building, and Gao Jian took a deep breath. He took out the crystal beautiful life essence and swallowed the fifth corpse king's blood-colored crystal nucleus in one gulp.

He had waited too long for this moment.