The stairwell was littered with over sixty corpses, their limbs and blood-soaked flesh piled up like a small mountain of the dead. The air was thick with the stench of blood, enough to make one dizzy. Most of the zombies had been blown in half by high-explosive grenades, and the walls were splattered with the remnants of their flesh. They had died a miserable death.

  However, if he didn't use grenades, Mu Xiao wouldn't have been able to clear out most of the zombies so quickly.

  "What to do? Without the corpse- dissolving water, these corpses will eventually attract other zombies. Who knows, a zombie might come and devour all the corpses here, evolving into a mutant human. That would be troublesome." Mu Xiao looked at the numerous dead bodies on the ground, feeling troubled.

  In the late evolutionary era, you only need to find a new human gathering area to buy a bottle of ordinary corpse water, and you can directly dissolve the corpse, avoiding the trouble of attracting monsters to attack.

  However, making corpse water is simple, but only for the post-apocalyptic world, because currently there isn't a variant plant material in the early game, so wooden flute can't be made at present.

  Mù Xiāo couldn't take care of too many things, so he first collected the blood beads from each zombie's body. Due to the sheer number of corpses and some being blown up by grenades, making them bloody and mangled, it was difficult to find the pea-sized blood beads. However, this didn't stump Mù Xiāo as he directly used his spiritual power to detect and sweep across the zombies on the ground. When he found a blood bead, he would then use his telekinetic powers to extract it.

  Mind power can control objects, it's just a simple extraction of blood beads, and it won't consume much of Mu Xiao's physical strength.

  A trail of corpses lay on the stairs, with beads of blood jumping out from the flesh and floating densely in the air.

  Spiritual system's ability holder is very suitable for sweeping the battlefield and won't miss any treasures.

  If you add mental power, sweeping war spoils will be even faster.

  Muxiao received more than 200 blood beads, most of which were inferior brown blood beads. There were over 50 ordinary crimson red blood beads, and only over 20 high-quality deep red blood beads. There were no rare purple-red blood beads at all.

  Apart from the Blood Bead harvest, Mu Shao's evolution degree had also risen to fifteen times gene resonance, his overall physical strength increased by a few degrees, and his spiritual release and mental power also saw a slight improvement.

  The frequency of gene resonance is the overall quality of the body. Generally, when the evolution degree of a new human being rises to one resonance, the physique will automatically optimize into a new human physique. The bloodline gene is the root of evolution, and continuous resonance means that the compatibility of the bloodline will become better, and the body's endurance will increase... even to the point of immortality!

  Of course, if you absorb the source of strength to strengthen your physique, you can enhance your physique ahead of time and have much stronger combat power than others at the same level.

  Muxiao absorbs pure source springs, and adds them all to the physical body, wanting to quickly break through SSS-level physique and obtain a truly new human physique.

  This time, no 'source of ability' was obtained to convert into Mu Xi's experience value. Although there were a few zombies at level 10, it is clear that the level 10 zombies did not evolve any good abilities, and at most they are more powerful than other low-level zombies, so only a few high-quality blood beads were provided.

  ……

  "These corpses can only be left unattended for the time being, and at most wait until the entrance to this staircase is closed, which should reduce the number of other zombies coming in." Mu Xiao didn't have time to move each corpse out one by one, planning to prepare some things next time he came, to clear away the layers of piled up corpses.

  Passing by a field of bizarrely shaped black corpses, Mu Xiao walked into the corner of the fourth floor and found the secret room on this level. Inside, there were residual dark red and black bloodstains, but no zombies existed.

  Perhaps there were some zombies inside, but it's likely that they were attracted away by the smell of their own kind and became one of Mu Shuo's targets to be killed.

  The fourth floor's secret room should have been a resting area for the guards, with only everyday items placed around, and no signs of weapons anywhere. It seemed that during the virus outbreak, most of the guards had taken up arms to rush out and support their comrades. As a result, Mu Xiao didn't find anything valuable, but there were many high-calorie foods, as well as five or six ordinary nutrient fluids. Mu Xiao took everything without hesitation, stuffing them all into his backpack.

  There was nothing gained here, Mu Xiao left the room and went to the secret room on the third floor below, but the secret room on the third floor was also a rest area, and the gain was still food and nutrient solution.

  Muxiao fetched a second backpack and put the food that couldn't fit in the first one into it. Food was always a must-consume item at any time, especially during this period. All food was extremely important supplies, even more precious than gold. Muxiao wouldn't let go of any food.

  Suddenly, a faintly audible sound came from the stairwell. The surroundings were so quiet that Mu Xiao had already heard something approaching, and his consciousness was slightly responsive to the abnormality. He immediately put down his backpack, touched his military knife, quietly hid, and released his spiritual power to quickly extend out and detect what was in the stairwell.

  "Is this a cat?"

  In the midst of the woodsy exploration, some feedback information screens came back, and it was discovered that it was an animal with black and white fur, like a small cheetah, but very much like a domestic cat in appearance, only several times larger than a domestic cat. A pair of pupils showed dark red, occasionally flashing cold-blooded and vigilant light, and the whole body was full of strange aura.

  The next moment, Mu Xiao could confirm that it was a variant cat.

  After the mutation, the ferocity and savagery of their wild nature are thoroughly awakened from their genetic bloodline. Formerly tame pets will all turn into ferocious mutated monsters. Moreover, the more ferocious an animal's nature is, the more terrifying its combat strength will be after mutation, just like lions and tigers, these carnivorous animals, whose danger level is no less than that of mutated humans, and even surpasses them.

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

  So this variant cat probably smelled the remaining human scent left when Mu Xiao fought, and quietly slipped into the stairwell.

  "It's likely that someone in the lawyer's building kept a cat before, otherwise there wouldn't be cats here undergoing mutations, and it seems like this mutated cat has eaten quite a bit of human flesh..." Mu Xiao said quietly.

  He detected that this variant cat was also a fifteen-time genetic resonance with himself, but absolutely several times more powerful than the same level zombie.

  "The meat of the Variant Beast is a great tonic, can't miss it." Mu Xiao licked his lips, relaxed his footsteps, and released a strand of living aura to lure the Variant Cat over for a sneak attack, then counterattacked and killed.

  As expected, the Variant Cat's pupils flashed with a fierce light and quickly confirmed Mu Xiao's location. However, it didn't charge over like a zombie, but rather like a cunning hunter, first locking onto its prey, observing for a while before slowly closing in to find an opportunity to launch a sneak attack.

  Mushan realized that he didn't seem to have any spare weapons, and relying on just one military knife for battle seemed a bit strained. Moreover, the sharpness of the Variant Cat's claws was probably not much different from the military knife, perhaps only differing in hardness.

  The body of a variant cat is extremely flexible and muscularly dense, making it impossible to pierce like a zombie.

  If the military knife in Mu Xiao's hand could emit energy, it would be a great weapon and could easily kill this mutated cat. Unfortunately, he currently does not have the ability of 'Mechanical Grasp' or 'Weapon Grasp', which means that the maximum function of the military knife cannot be activated.

  "It's better to end this quickly." Mu Xiao thought for a moment, not intending to engage in a head-on battle with this mutated cat, lest he himself get hurt. Because later on, he would have to return home, and who knows what dangers lay ahead, so it was best to eliminate the trouble at the lowest cost possible.

  The variant cat crept closer to the room step by step, and Mu Xiao had already shifted to the wall beside the door, waiting for an opportunity.

  At the moment when the variant cat was about to enter the room, Mu Xiao burst out with a powerful mental force like a pair of invisible giant hands, covering the variant cat's head, and grasping its brain tightly with a mental force no less than physical strength. At the same time, Mu Xiao kicked the ground with one foot, accelerating his speed to the extreme, and stabbed at the abdomen of the variant cat that was being pulled into the room with a knife like lightning and thunder.

  The scene at this moment is like a mutant cat suddenly flying up, exposing its weak belly, and fiercely crashing onto the sharp knife tip.

  "Hiss!"

  The mutated cat let out a sharp and fierce screech, its muscles violently convulsing in an explosive burst that nearly broke free from Mu Shao's control. However, as the mutated cat struggled intensely, Mu Shao's knife slightly deviated to one side, only piercing into the cat's ribcage before being clamped down by the cat's tenacious muscles, causing the blade to sink even deeper.

  "Idiot! You think I only have the power of one knife?!?" Mu Xiao roared, brutally pulling out his blood-stained military saber, ready to deliver a finishing blow. But in an instant, the mutant cat's muscles swelled up, its struggling strength increasing by more than twice, and it was no longer something that Mu Xiao could control with his current mental power.

  Muxia increased the output of her psychic powers, using a force of over a thousand kilograms to slam the mutated cat fiercely onto the ground. Her leg whipped through the air, delivering a heavy kick that sent the mutated cat flying back up like a rubber ball.

  Boom!

  A dull and heavy kickback, a variant cat dragged out a bloodline, like a broken kite flying out suddenly.

  The mutant cat sprang nimbly, landing steadily on the ground, opening its mouth full of sharp teeth, emitting a hoarse and cracked voice of pain and venom, with blood-red pupils cold as ice, a pair of claws flashing like steel knives, ready to strike a fatal blow at any moment.

  Mu Xi looked calmly at the mutated cat, ready to defend against a sudden attack. Suddenly, the mutated cat's body expanded by twice its size, with bulging muscles like small hills, and it didn't look like a cat at all, but rather a wild and ferocious little monster.

  The mutant cat tensed its muscles, and the wound on its abdomen quickly stopped bleeding, apparently due to its strong elasticity.

  The aura surrounds Mokusei's body, and as soon as the variant cat launches an attack, it will be like a big net covering him.

  But unexpectedly, the variant cat did not launch an attack, instead quickly turned around and fled, clearly knowing it was no match for Mu Xiao.

  "Want to leave!" Mu Xiao wouldn't let the mutant cat off, because mutant monsters were extremely vengeful. If they didn't get rid of it now, it would linger around like a ghost, waiting for an opportunity to launch a sneak attack. In the past, it was still possible to enter a strong person's protected city district, find some people who practiced soul-hiding secret techniques, cover up one's aura, and spend some time in the city without too much danger. However, this was just the beginning of evolution, and no strong person had established their power yet, nor had anyone cultivated out the secret technique to hide their body's aura.

  There is only one way out, and that is to kill off the mutated monsters.

  Muxiao's psychic power was like a raging torrent, crashing against the door and causing the mutant cat to collide with an invisible wall. At this moment, Muxiao would not hold back his psychic output, bursting forth with a whirlwind-like psychic power that sliced through the air like an invisible knife tip, mercilessly tearing apart the mutant cat's previous wound.

  Mù Xiāo could only control one strand of psychic power, exerting the greatest intensity. If he could control multiple strands of powerful psychic power, a single glance would be enough to tear the mutant cat in two.

  At this time, he used a thought force to restrain the mutant cat's counterattack. Every time it pounced like a hammer, the thought force transformed into an invisible force, smashing it flying like a large hammer.

  Nen can not only be used for offense, but also for defense. As long as the Nen is strong enough, enemies won't even be able to approach you and can be killed from a distance. However, Mokushiro doesn't have that kind of power yet, so he can only coordinate with his Nen for offense, stabbing the mutated cat repeatedly.

  Multiple wounds bleeding, the variant cat couldn't stop the loss of blood either, and Mu Xiao's mental force was unstoppable, attacking through every opening, soon the variant cat lost too much blood and fell to the ground in extreme exhaustion.

  The moment the mutant cat died, a full and abundant 'evolutionary source' like water merged into Mu Shuo's body. At the same time, another ability source appeared on the corpse of the mutant cat.