The recovery value of the first-level crystal nucleus has 0.1 contribution points, which is equivalent to a third-level zombie corpse. It's just that the yield is a bit low, about one-tenth.

The value of the secondary crystal nucleus is 1 contribution point, and the yield rate is as high as one-half. The third-level crystal nucleus is worth 10 contribution points, and the yield rate is 100%, that is to say, if Lin Lei can kill ten third-level mutant beasts and the light crystal nucleus is recovered, he can earn 100 contribution points.

The effect of the crystal nucleus, the system also suggests that when the evolutionary is promoted to the fourth level and the talent ability is activated, the stored energy will be automatically absorbed in the body to assist the evolutionary to release the ability or cultivate.

And this kind of crystal nucleus contains a large amount of energy required by evolutionaries, and the higher the level of the crystal nucleus, the greater the energy it contains.

After listening to the explanation, Yang Xueli looked out of the door and found that there was no one around, so she picked up the glass jar containing the crystal nucleus of the mutant beast and handed it to Lin Lei: "Since this crystal nucleus is so powerful, I believe it will be of greater use to you." ”

“...... No, it's useless for me to take it if the quantity is too small, so you can keep it for yourself. Lin Lei declined lightly.

The heart is actually dripping blood, and no matter how thin the mosquito's legs are, they are still meat!

It's a pity that the system determined that Yang Xueli was not the owner of the crystal nucleus of these mutant beasts, and the "stolen" things were given to Lin Lei, and Lin Lei couldn't recycle them.

"Also, you just need to know about it, don't leak it." Lin Lei reminded by the way.

"Why?" Yang Xueli was puzzled.

"You don't have what it takes to deal with the counterattack of the mutant hordes." Lin Lei explained.

The crystal nucleus of mutant beasts is obtained by killing mutant beasts, and these few pieces in Niutou Mountain don't need to ask, they should be obtained by killing the domestic mutant pets in the city.

Once everyone knows the usefulness of the crystal nucleus, they will inevitably turn their minds to the wild mutant beasts in the mountains and forests.

Domestic pets have long lost their wildness, even if they become mutant beasts, their fighting instincts are too different from wild mutant beasts, if the people of Niutou Mountain do not recognize the situation and rashly go to encircle and suppress wild mutant beasts, they are likely to encounter annihilation.

Yang Xueli suddenly realized after hearing this, and at the same time secretly said that it was a fluke, Lin Lei didn't want to have too few crystal nuclei before, and she also planned to let her brother arrange people to go into the mountains and collect more mutant beast crystal nuclei.

——

——

Although Niutou Mountain is poor, but the accommodation environment is good, it belongs to the resort before the end of the world, and the house decoration is more exquisite.

Second, before coming here, it was a gathering area of nearly 10,000 people, but now there are only more than 700 people, and the accommodation conditions are naturally not bad.

Lin Lei was directly arranged to live in a presidential suite in the resort, even if Lin Lei was in the world, he had never lived in such a high-end room.

There was nothing to do all night, and the next day everyone got up early, checked the equipment, and was very busy.

"Brother Lin, are you up?" Yang Xueli's voice came from outside the door.

Lin Lei had long been woken up by the sound outside, heard a knock on the door, got up and opened the door.

I saw Yang Xueli holding a tray with a large bowl of white rice and a cup of bone broth on the tray.

The rice was naturally exchanged by Lin Lei for Niutoushan, and the bone broth was made from the pork leg bones left over from the lure of zombies yesterday.

Although the agent on the pork leg bone has volatilized, there is still a little residual substance in it, fortunately, this thing has no harm to the locals who have lived under the virus for a long time.

The residue is not harmful to the people of this world, but Lin Lei is not a person of this world!

"Brother Lin, this is the pork bone soup I made for you early in the morning, I haven't cooked soup for almost four years, how about you taste it?" Yang Xueli handed the soup cup to Lin Lei.

Lin Lei suddenly made up the picture of Da Lang taking medicine.

Yesterday he stole the crystal nucleus and gave it to himself, and today he boiled bone broth for himself, although they were all good intentions, but Lin Lei was not blessed with both.

"This ...... I'm not hungry at all, I've already eaten when I wake up in the morning, so you might as well eat it yourself. Lin Lei could only refuse.

Once contaminated by a biochemical virus, unless he chooses to become an evolutionary, he will have to waste dozens of contribution points to kill the virus.

"Even if you've eaten, it's okay to drink soup." Her kindness was rejected one after another, Yang Xueli was a little discouraged, and simply broke the jar and said, "Could it be that you are afraid that I will be poisoned?" ”

"Of course not. Ay! I'll be honest, I've never eaten pork. Lin Lei lied again.

You can't say that this pork leg bone has a virus, and it is dangerous to eat it yourself!

Anyway, she had already panicked once, so she simply continued to make it up, and when she really took Yang Xueli out of this world in the future, she would naturally understand.

"By the way, I saw that everyone was gathered outside, are you preparing to head towards Haifeng City?" In order to avoid revealing the stuffing, Lin Lei hurriedly changed the topic.

Cleaning up the zombies in Haifeng City was proposed by Lin Lei, and in order to dispel Yang Chunxi's concerns, last night, Lin Lei quietly sold Yang Chunxi a demon-breaking battle knife worth 4 contribution points.

Although the Demon Breaker Knife is not as sharp as the laser long sword, it is better that there is no need to install an energy block, and the combat knife is mixed with a special element, which can effectively kill biochemical viruses.

In the past, Yang Chunxi couldn't kill the third-level zombies, and the fundamental reason was that the weapon in his hand couldn't break the defense, and under the full attack, he could only scratch the opponent's skin a little, and he couldn't fight at all.

Now that he has the Demon Breaking Battle Knife, Yang Chunxi is fully capable of killing the third-level zombies alone.

"That's right, now that we have plenty of ammunition, my brother is ready to take advantage of the victory to pursue and try to kill another batch of zombies in exchange for more supplies." Yang Xueli didn't know about Lin Lei's transaction with her brother, and thought that Yang Chunxi wanted to take the opportunity to make a lot of money.

didn't know that in order to get the Demon Breaking Battle Knife, Yang Chunxi had already prepaid Lin Lei five thousand first-level zombies in advance.

"Yes, it's not a problem with supplies, how much you can exchange, but I have other things, so I won't go with you." Lin Lei said.

How many zombies are in the city, Lin Lei doesn't know, but there will definitely be no large-scale corpse tide.

Because once the zombies gather to more than 30,000, they will form a corpse tide and move in a fixed direction, which is the same as the wave they destroyed before.

As long as the zombies do not form a corpse tide, with Yang Chunxi's combat power, they can slowly eat the zombies in the city one bite at a time.

"Where are you going? I'm with you. Worried that Lin Lei would not agree, Yang Xueli added again: "I am a liaison sent by the management committee, and I must know your movements at all times." ”

"What? Afraid that I will run away with my debts? Lin Lei said with a smile: "I'm going to the nearby mountains, and I just lack a guide." ”

"Are you going to kill mutants?" Thinking of Lin Lei's importance to the crystal nucleus yesterday, Yang Xueli instantly understood Lin Lei's purpose.

"Yes, but are you sure you want to follow? I'm going to fly there! Lin Lei pointed out.

He can fly, if Yang Xueli follows, he must let Lin Lei hold him and fly.

"Fly and fly, who is afraid of whom!" Yang Xueli finished speaking with a red face and ran out of the room directly.