A little evolution is not enough for Duan Fei to improve other abilities, so he is not in a hurry to use it.

So far, Duan Fei has only upgraded his power attribute from level 1 to level 2, but if he wants to upgrade again, he needs six points of evolution, that is, Duan Fei must kill six walking corpses to upgrade his power.

Duan Fei took a general look. At present, except that strength is level 2, other attributes of the body are only level 1

At the agile level, three evolution points are required for upgrading;

Exploration ability is level 1, and upgrading requires two evolution points;

Level 1 of mental strength. It takes 10 evolution points to upgrade;

"Mental strength!"

When Duan Fei saw the attribute of mental power, especially the "evolution needs ten evolution points" displayed behind it, he was stunned and a look of surprise flashed in his eyes.

It only takes six points of evolution for power to rise from level 2 to level 3, and it takes ten points of evolution for this spiritual power to rise from level 1 to level 2 alone.

Of course, surprise comes back to surprise. When Duan Fei thought of the rumors about spiritual power in the dark age, he was relieved of these ten points of evolution.

In the dark age, the only way for human beings to fight against those mutant monsters is those awakeners with different abilities. Different awakeners have different abilities. Among these strange abilities, there is an extremely powerful power, that is "spirit".

Unlike the awakened person who uses the gene nucleus in the mutant walking corpse or alien to obtain the power, the owner of the "spirit" power is a natural awakening. Once awakened, his initial power is enough to compete with the C-level awakened person.

Space driven objects, mental force field, and mental attacks are invisible, and there is no way to guard against them. In previous lives, there was a strong man with the power of "spiritual force field". When the animal tide was coming, he walked alone in the wilderness within a radius of ten meters. As long as a monster stepped in and died immediately, one would solve the almost endless monster in the animal tide. It can be seen how abnormal his ability is.

However, there are only a few owners of the "spirit" power in the whole world. Each of them is a supreme power. In his previous life, Duan Fei was not qualified to contact them, so he didn't pay much attention to it.

According to the current state, Duan Fei knows that each level of mental power requires a large number of evolution points, and with the improvement of the level, the demand for evolution points also increases, which is almost seven times, eight times, or even more than ten times.

If you want mental power to reach the level of power, Duan Fei needs to raise it to level 10 or so at least. The number of evolution points required is incredible. For Duan Fei at present, it is an impossible task.

After careful consideration, Duan Fei decided to upgrade his strength first, followed by agility, and then exploration ability. Mental power will not be considered for the time being. After all, Duan Fei's current ability is limited, and it is extremely difficult to obtain evolution points. He must use each evolution point on the blade.

After eliminating the walking corpse, Duan Fei came to the eleventh floor.

Similarly, there are two families on the eleventh floor, with opposite gates. However, in front of one door, a large pool of blood flowed out of the house and dragged for a meter.

Looking at this pool of blood in front of him, Duan Fei's eyes were cold. In his cold eyes, there was a strong killing opportunity.

The door is open, but according to the scene in front of us, there may be a walking corpse in the house, and it may be hidden behind the door.

Facing the current situation, Duan Fei slowly exposed the dagger.

The walking corpse at the beginning of the end of the day has no intelligence and simple skills. It just comes to find the taste and sound and pours on the living people when it sees them.

This is their weakness, but it is also fatal.

If there is a walking corpse behind the door, when Duan Fei opens the door, at the moment it pours, Duan Fei has a great chance to be directly thrown to the ground. In the face of such a sudden attack, the dagger is more suitable for counterattack and close combat.

Duan Fei kept a high degree of concentration and slowly pushed the door open.

After the door opened, the imagined danger did not appear. In front of him was a messy living room.

After slowly pulling out the simple long gun, Duan Fei walked slowly inside.

The room was in chaos, the table was overturned, and the ground was full of broken pieces of tea table porcelain cans. There was no body, but there was a big pool of blood, which was very eye-catching.

Looking forward along the blood stain, there is a row of blood footprints extending to the bathroom not far away. Duan Fei came to the bathroom according to his footprints and looked carefully through the crack in the door.

Open the opaque glass door panel, inside a white bathtub, the body of a naked man is soaked in the blood stained water.

The body turned its back to Duan Fei and couldn't see its face clearly. However, he noticed that the corpse did not decay strangely like a walking corpse. He was relieved, opened the door and went straight in.

However, at the moment when Duan Fei just opened the door, his pupils shrank sharply and his body suddenly retreated backward.

Just the moment he stepped into the bathroom, the man's body suddenly turned over. His face had been completely torn and could not see his true face. There was also a big hole in his stomach, and all his internal organs were eaten away.

At the same time, a ferocious head was slowly raised behind the bathtub.

This is a woman, also naked. It seems that he suddenly became a walking corpse while taking a mandarin duck bath with the man. As delicate as a baby's skin, it has now become rotten meat full of pus and poisonous water.

Her face was covered with blood and her mouth was full of meat residue left by swallowing men. She looked terrible.

"Ow!"

The moment she saw Duan Fei, she screamed loudly, loosened her grip on the man's hands, popped her whole body directly out of the water and rushed frantically towards Duan Fei.

Duan Fei's face remained unchanged and his long gun pierced out in a straight line.

"Hiss!"

The blade cut the rotten meat, and the sharp tip came straight through her mouth and through the back of her head. But even so, she still didn't die, and her hands kept waving and struggling.

Duan Fei looked cold and twisted his right hand. The blade directly turned half a circle in her brain and became flat. Then apply a strong force.

Only heard the sound of "hissing and pulling", a large area of corpse water mixed with red and white brains flew around. The head of the zombie was directly cut in half by a knife.

Not surprisingly, after the head was cut, the walking corpse fell to the ground and never got up again.

After killing the walking corpse, the familiar electronic sound sounded again, and the evolutionary points changed from one point to two points.

When he searched the house and determined that there were no other walking corpses, Duan Fei stopped and hurried to the next house.

The longer he stays outside, the smell from Duan Fei's sweat and pores will become stronger and stronger. Although there is nothing on the surface, this smell is no different from a light in the dark for a walking corpse.

Therefore, Duan Fei must be fast in hunting zombies. Otherwise, it will be troublesome because the sweat and blood smell on his body attract a large number of zombies.

Fortunately, there are only two families on the first floor. It won't take much time to clean up the building, but it still needs to be fast.

"It's a pity that I don't have a gun. With my shooting skills, I basically shoot these low-level walking corpses one by one."

Duan Fei sighed in his heart. In the early days of the end, when these zombies had not evolved to the next stage, the efficiency of hot weapons was much greater than that of cold weapons.

Open the door of another room. Unlike other houses, there is not only no blood in the room, but also the items are neat. There is no sign of walking corpses.

Duan Fei was not confused by the scene in front of him. There are only two possibilities. The first is that the owners of the house have not become walking corpses, but survivors. The second possibility is that everyone in this house was infected by the virus and turned into walking corpses. There was no situation like Aunt Huang.

Duan Fei, holding a machete, walked into the room carefully and searched slowly.

The items in the room were unexpectedly neat, and there were no stinky and disgusting blood spots on the ground.

Looking at the scene in front of him, Duan Fei's body gradually tightened up. Because the room is too clean and quiet, it's quiet and frightening. If there are no survivors, there must be something else hidden in it.

Duan Fei's guess was right. When he opened the door of his bedroom, a dark shadow shot out of the room and rushed towards Duan Fei.

At this moment, an instinctive danger warning made Duan Fei's scalp numb. Almost without thinking, Duan Fei kicked the wall fiercely with his right leg and fell back with his body tilted. Then he quickly threw away the long gun in his hand, and the sharp dagger quickly popped out of his sleeve and stabbed it forward with all his strength.

"Pooh!"

With the sound of the blade piercing the skin, a smelly yellow liquid was sprayed wantonly from the air to the front. Then Duan Fei's body fell heavily to the ground, and the dark figure rushed out of the room also fell powerlessly to the ground from the air.

After Duan Fei got up, he found that it was a baby zombie that attacked him.

Seeing the little zombie on the ground, Duan Fei flashed a feeling of fear.

Like this, a baby who becomes a zombie because of infection with the virus does not have any particularly powerful combat effectiveness, but its speed is really frightening compared with its combat effectiveness.

With unparalleled speed and its size, when it makes a sudden attack on you, ordinary people simply can't react. Next, whether you are bitten or just bitten, you are already dead.

When solving the baby's zombie, in order to prevent the existence of other zombies, Duan Fei specially inspected the whole room. There was nothing else except two bodies that were eaten badly in the bedroom.

After cleaning, Duanfei continues to clean below the floor.

The tenth floor.

The ninth floor.

Eighth floor.

……

It took Duan Fei most of the day to clean up all the floors. However, Duan Fei did not find any survivors. Even if they were not infected by the virus, they were all eaten by walking corpses.

This discovery surprised Duan Fei. After all, there was no survivor except himself and his sister on the whole floor. This probability is too small.

However, such abnormal Duanfei didn't pay much attention to it. As long as he got out of this floor, there must be some survivors.

After seven days, about one tenth of the walking corpses will mutate, giving birth to wisdom and various special forces. At that time, the living environment of the remaining survivors will be more difficult, and it will be more difficult to find other survivors.

God seems to have given up human beings at this time. Compared with walking corpses and monsters, the number of humans who can awaken and get powers is pitiful. In the face of almost endless mutated zombies and monsters, human beings have lost their absolute supremacy and become the weakest race.

However, these things are too far away for Duan Fei. At present, his only task is to safely spend the seven days of apocalypse.

The evolutionary system gave Duan Fei the ability to survive and continue to be powerful. It also provided a guarantee for him to hunt and kill mutant walking corpses seven days later. Seven days is enough for Duanfei to obtain a certain evolution point. At that time, he will certainly usher in comprehensive evolution.

Unconsciously, time passed slowly. It took a lot more time to clean up the floor than Duan Fei planned, so when he got home, it was already four o'clock in the afternoon.

With a click, the door opened. Duan Xinyue came up to the door in a wheelchair, red eyes, hit Duanfei heavily, and then directly fell into his arms.

"You bastard, I asked you to come back before twelve. Look at the time!" Duan Xinyue scolded angrily and cried.

Looking at Duan Xinyue's nervous and worried expression, Duan Fei gently touched her head and comforted with guilt: "I'm sorry, I'm wrong. I promise to go home on time next time!"

"Next time I do such a thing again, I will never spare you!" Duan Xinyue said viciously.

Duan Fei nodded and hurriedly accompanied her back to the house.

In fact, all Duan Fei's actions are planned. The danger has been reduced to the lowest. There is no need to worry about anything, but he still ignores Duan Xinyue's mood after all.

Duan Fei secretly decided that before the next action, he would take his sister into account and not let her worry like this all day!