In the stairwell, more than 60 zombies died, and the stumps and bloody flesh were piled up like a small mountain of corpses, which was unbearable, and the smell of blood filled by the air was enough to choke people unconscious. Half of the zombies were blown up by high-explosive grenades, and the walls were full of traces of blood and flesh, and they died a very miserable death.

However, if he didn't use grenades, Mu Xiao would not have cleared most of the zombies so quickly.

"What to do? Without corpse water, these corpses will sooner or later attract other zombies, maybe a zombie will devour all the corpses here and evolve into mutants, which will be troublesome. Mu Xiao looked at the dead corpses all over the ground for a moment, and it was difficult to commit.

If it is in the late evolutionary era, you only need to find a new human gathering area, you can buy a bottle of ordinary corpse water, and you can directly turn the corpse away, avoiding the trouble of attracting monsters to attack.

However, the production of corpse water is very simple, but it is only for the late world realm, because there is no material for a mutated plant in the early stage now, so Mu Xiao cannot make it in the current situation.

Mu Xiao couldn't care too much, so he collected the blood beads on the zombies one by one. Because there were too many corpses, and some of the corpses were blown up by grenades, it was difficult to find the blood beads the size of soybeans, but it was also difficult for Mu Xiao, he directly used his mental power to detect, swept towards the corpses on the ground, and when he found the blood beads, he used his mental power to extract them.

Mental power can control things, but simply extracting blood beads can't consume much physical strength from Mu Xiao.

Mu Xiao walked all the way through the pile of corpses in the stairwell, and beads of blood jumped out of the flesh and blood, floating densely in the air.

Those who have the ability of the spiritual system are very suitable for cleaning the battlefield and will not miss any treasures.

If you add telekinesis, you can sweep up the loot even faster.

Mu Xiao collected a total of more than 200 blood beads, most of which were inferior brown blood beads, of which there were more than 50 ordinary vermilion blood beads, only more than 20 high-quality crimson blood beads, and there were no precious purple blood beads at all.

In addition to the blood bead harvest, Mu Xiao's evolution degree has also risen to fifteen times of genetic resonance, and his body's comprehensive strength has become a little stronger, and his release spirit and mental power have also improved slightly.

The number of gene resonance is the overall quality of the body, and the general evolution of new humans rises to a resonance, and the physique will automatically optimize into a new human physique, and the bloodline gene is the foundation of evolution, and the resonance continues to rise, which means that the compatibility of the bloodline will become good, and the body's ability to withstand it will be more and stronger...... Even, life is immortal and immortal!

Of course, if you absorb the source of power to strengthen your physique, you can strengthen your physique in advance, and your combat power is much stronger than that of the same level.

Mu Xiao absorbed the pure source and added it all to the physique, wanting to break through the SSS-level physique as soon as possible and obtain a true new human physique.

This time, I didn't get the 'source of ability' to convert into Mu Xiao's experience points, although there are a few zombies that are level ten, but it is obvious that the level ten zombies have not evolved any good abilities, at most they are more powerful than other low-level zombies, so they provide a few high-quality blood beads.

……

"These corpses can only be disposed of for the time being, and at most the entrance and exit of this staircase will be closed, which should reduce the number of other zombies coming in." Mu Xiao didn't have time to move the corpses out of the body one by one, and when he came next time, he would prepare some more things to remove the layers of corpses that had piled up.

Passing over a strangely shaped black corpse, Mu Xiao walked into the corner of the fourth floor and found the secret room on this floor, which contained crimson and black bloodstains, but there were no zombies.

Perhaps, there were some zombies inside, but it is likely that they were attracted by the smell of similar corpses before and became one of Mu Xiao's killing targets.

The secret room on the fourth floor should be a rest room for the guards, all of which are placed with some daily necessities, and there is no shadow of weapons, there should be a virus outbreak, and most of the guards have taken up arms and driven out of the city to support their companions. Therefore, Mu Xiao didn't find anything valuable, but there were a lot of high-calorie foods, as well as five or six ordinary nutrient solutions, and Mu Xiao didn't refuse to stuff them all into his backpack.

Seeing that there was nothing to gain here, Mu Xiao walked out of the room and walked to the secret room below the third floor, but the secret room on the third floor was a rest room, and the harvest was the same as food and nutrient solution.

Mu Xiao found a second backpack and put the first food that could not be packed on his back, food is a necessary consumable at any time, especially in this period, all food is a very important material, even more valuable than gold, of course Mu Xiao will not let go of any food.

In the stairwell, there was a sudden inaudible sound, the surrounding environment was so quiet, Mu Xiao had already heard something approaching, and his consciousness and spirit also sensed abnormality slightly. He immediately put down his backpack, felt for his saber, and lurked quietly, while releasing his spiritual power to quickly extend out of the stairwell, detecting the presence of something in the stairwell.

"This is a cat?"

In Mu Xiao's detection, some information pictures were fed back, and it was found that it was an animal with black and white fur, like a small cheetah, but it was very much like the appearance of a domestic cat, but it was several times larger than the body size of a domestic cat, and the pair of pupils were dark red, flashing cold-blooded and alert from time to time, and it was full of strange atmosphere.

The next moment, Mu Xiao could be sure that it was a mutant cat.

After the animals mutate, the ferocious and ferocious wildness is completely stimulated from their genetic bloodline, and the previously tame pets will become ferocious mutant monsters. Moreover, the more vicious the nature of the animal, the more terrifying the combat effectiveness after the mutation, just like carnivorous animals such as lions and tigers, the degree of danger is definitely no worse than that of mutants, and even surpasses it.

However, mutant monsters generally only hunt fresh flesh and blood, and zombies are inferior flesh and blood, and mutant monsters basically do not actively hunt, let alone be interested.

Therefore, this mutant cat probably smelled the residual smell of living people when Mu Xiao was fighting, and quietly sneaked into the stairwell.

"Probably there were cats in the law firm before, otherwise where would there be cats mutated here, and it seems that this mutant cat has eaten a lot ......of human flesh," Mu Xiao said secretly.

He detected that this mutant cat had fifteen genetic resonances with himself, but it was definitely several times more powerful than zombies of the same level.

"The meat of the mutant beast is a great supplement, and it can't be missed." Mu Xiao licked his lips and relaxed his steps, and at the same time released a wisp of his own breath of a living person, tempting the mutant cat to come over and sneak attack, and then counterattack and kill.

Sure enough, the mutant cat's eyes flashed with a fierce light, and he quickly confirmed Mu Xiao's location, but instead of attacking menacingly like a zombie, he locked on to the prey like a cunning hunter and observed for a while before slowly approaching, looking for an opportunity to sneak attack.

Mu Xiao found that he didn't seem to have any extra weapons, and it seemed that he was reluctant to fight with a saber alone, and the sharpness of the mutant cat's claws was definitely not much worse than that of a saber, maybe there was only a difference in hardness.

The body of the mutant cat is extremely flexible, and the muscles are tight, and it is impossible to pierce as well as a zombie.

If the saber in Mu Xiao's hand can stimulate energy, it is definitely a sharp weapon, and it can easily kill this mutant cat, but unfortunately he currently does not have the ability to 'mechanical mastery' or 'weapon mastery', which means that the maximum function on the saber cannot be activated.

"It's just a quick fix." Mu Xiao's heart moved, and he didn't plan to fight this mutant cat head-on, otherwise he might be injured a lot. Because, he will return to his residence, and he does not know what danger there is on the way, and try to stifle the trouble at the lowest cost.

The mutant cat approached the room step by step, and Mu Xiao had already moved to the wall of the door, waiting for an opportunity.

When the mutant cat was about to enter the room, Mu Xiao's explosive mental power was like a pair of invisible big hands, shrouded in the head of the mutant cat, no less than the mental power of the physical strength, tightly pinched the mutant cat's head, and violently pulled it into the room, and at the same time, Mu Xiao kicked his feet, and the speed increased to the extreme, and a knife stabbed at the abdomen of the mutant cat that was pulled over like lightning and thunder.

At this moment, the scene is like a mutant cat suddenly flying up, exposing the weakness of its abdomen, and slamming into the sharp tip of the knife.

"Shhh

The mutant cat let out a sharp and ferocious scream, and the muscles suddenly struggled and exploded, almost breaking out of Mu Xiao's mental control, but under the mutant cat's violent struggle, Mu Xiao's knife was slightly biased, only piercing into the mutant cat's ribs, and then being caught by the mutant cat's tough muscles, the blade was pierced deeper and pierced.

"Idiot! Think I only have one sword?! Mu Xiao shouted angrily, brutally pulled out the bloody saber, and was about to stab the knife directly, but in a moment, the mutant cat's muscles swelled, and the strength of the struggle increased by as much as two times, which was no longer something that Mu Xiao's mental power could continue to control at this moment.

Mu Xiao intensified his output of mental power, and smashed the mutant cat to the ground with all his might, his legs were agitated, and he kicked the mutant cat like a leather ball with a heavy blow.

Boom!

With a dull heavy kick, the mutant cat dragged a blood line, like a broken kite that bounced out of the body.

The mutant cat jumped swiftly like lightning, and landed on the ground steadily, opening its mouth full of sharp teeth, making a hoarse and cracked sound of pain and resentment, its blood-red eyes were extremely cold, and a pair of claws flashed like steel knives, sending out a desperate fatal blow at any time.

Mu Xiao looked at the mutant cat calmly, defending against surprise attacks at any time. Suddenly, the mutant cat's body doubled, and pieces of muscles bulged like small mountain packs appeared, not like a cat at all, but like a wild and ferocious little monster.

The mutant cat tensed its muscles, and the wound on its abdomen quickly stopped the blood flowing, obviously because the muscles contained strong flexibility.

The telekinesis surrounded Mu Xiao's side, and as long as the mutant cat attacks, it will definitely shroud the past like a big net.

But unexpectedly, the mutant cat did not attack, but quickly turned around and fled, obviously knowing that Lu Dao could not defeat the enemy of Mu Xiao.

"I want to go!" Where will Mu Xiao let go of the mutant cat, the reason is that the mutant monster is very resentful, if it is not removed at this time, it will hang nearby like a ghost, looking for an opportunity to sneak attack. If it was good to say in the past, as long as you enter an urban area sheltered by the strong, find some people who cultivate the secret method of the soul, cover the breath on the body, and spend a certain time in the city at the same time, there is not much danger, but at the beginning of this evolution, there is no strong person to establish the power of the strong, and no one has cultivated the secret method to cover the breath of the body.

There's only one way to go, and that's to kill the mutant monsters.

Mu Xiao's telekinesis was like a torrent, slamming into the door, and the mutant cat was like crashing into an invisible wall. At this time, where would Mu Xiao be stingy with the output of his mental power, and a full burst of mental power like a whirlwind, an invisible mental power like the tip of an invisible knife, strangled into the wound of the mutant cat just now, and brutally tore it.

Mu Xiao can only control one telekinesis to exert maximum strength, and if he can control multiple strong telekinesis, he can tear the mutant cat into two petals with one face.

At this time, he used a telekinesis to restrain the mutant cat's counterattack, and every time it seemed to pounce, the telekinesis turned into an invisible force and smashed it away like a sledgehammer.

Mental power can not only attack, but also defend, as long as the mental power is strong enough, the enemy can't even get close to him, he can torture the opponent from a distance. But now Mu Xiao doesn't have such strength, so he can only cooperate with the attack of telekinesis, and the knife pierces the mutant cat.

Multiple wounds were bleeding, and the mutant cat couldn't stop the loss of blood, and Mu Xiao's telekinesis was unguardable, attacking everywhere, and soon the mutant cat lost too much blood and fell to the ground extremely tired.

The moment the mutant cat died, a 'source of evolutionary power' that was like a water mass full of water merged into Mu Xiao's body, and at the same time, another source of power emerged on the corpse of the mutant cat.