In the space, Song Nan appeared suddenly, but she went straight to the river, squatting by the river, Song Nan originally wanted to throw the dagger in her hand directly into the water, and then think about it, all the food and drink in this space rely on this river, she is now throwing such a dirty and zombie ** thing in a reasonable place, I am afraid that she will not want to take a bath in the future.

So Song Nan moved her hand, and a small plastic bowl appeared in her hand, scooping a bowl of water in the river. After thinking about it, I took another basin and put it on the ground, and then I squatted down with confidence, the basin was connected below, and the water in the bowl slowly washed down from the dagger, and the dagger and the small object stained with ** gradually revealed their original brilliance.

The original fishy yellow ** was washed away by the water, and the small thing finally revealed its original appearance, a crystal transparent diamond-shaped body, like a diamond but without the sparkle of a diamond, and not as crystal as a gem, quietly placed on the tip of the knife.

Song Nan exhaled softly, as if admiring: "The first-order white core, not bad, not bad." ”

This thing is the crystal nucleus!

After the rainstorm, zombies and mutated animals have evolved crystal nuclei, and even when this winter has passed, people will find that mutant plants that have been dormant will also have crystal nuclei. The crystal nucleus is their source of energy and necessary for the survival of living organisms.

The crystal nucleus is divided into six color systems, namely yellow, green, blue, red, black and white, corresponding to the six types of gold, wood, water, fire, earth and mutation. The abilities of each special system derived from each system represent their own color based on the color of the main system.

For example, a zombie with a gold ability has a yellow crystal nucleus, and a gold derivative is a space system, so a space zombie has a yellow crystal nucleus. In addition, the wood-based ability is healed, the water ability is ice, the fire ability is thunder, the earth-based ability is wind, and the spirit-based ability is divided into mutations, and the nucleus color of these abilities corresponds to the color of the main ability.

The reason why humans want to collect crystal nuclei, in addition to the reason why destroying crystal nuclei can kill zombies, there is also a very important reason, that is, the ability and mutant can absorb the huge energy contained in the crystal nucleus to improve their ability level.

After the gradual development of the last days, due to the lack of materials, bartering was an inevitable way of trading, but it also gradually emerged, and crystal nuclei were used as the circulation method of money. After a year, if someone talks about money, then he must be talking about crystal nucleus.

Song Nan reached out and took the white core, the so-called spatial ability was just the reason for her jade ring, but she was now a spiritual ability, which was true. In her previous life, she hadn't heard of anyone who was a dual-line ability, so even though she knew three years of experience in the end times, Song Nan still didn't know if she would be able to absorb this white core? ，

You know, if there is a mistake in the system that absorbs the crystal nucleus, this person will definitely die.

Does she really want to try?

Song Nan took a deep breath and took the crystal nucleus off the blade, although he couldn't try it rashly, but it was always okay to feel it, the energy contained in this crystal nucleus was just a first-order medium level, Song Nannan had seen a high-quality crystal nucleus, so naturally he didn't praise this.

"It seems that this crystal nucleus is unusable." Song Nan had absorbed the energy in the yellow crystal nucleus and knew what it was like to absorb the energy. Although it is a bit hasty to judge whether the crystal nucleus can be absorbed based on feelings alone, Song Nan himself does not doubt the credibility of this method.

At least, she believed in herself.

Fingers pinched the crystal nucleus and played with it a few times, Song Nan still felt a little dirty, when she used the crystal nucleus in her previous life, she swallowed it directly, as something to be taken out of the zombie**, the crystal nucleus was actually quite dirty.

After thinking about it, Song Nan waved his hand, and a small mineral water bottle appeared on the ground, containing water from the purification well. Song Nan poured the well water into the bowl, and the dagger and crystal nucleus were still in the bowl - since the well water has a purifying effect, let's purify it together!

Song Nan put the bowl down, stood up straight and looked at her own space, although she had never had time to come in, but the self-growth speed of the space was really informative to her, and her mental power controlled the collection of crops and put them into the warehouse, Song Nan smiled with satisfaction, after the end of the world, she was most lacking in materials, but what she lacked the most, in fact, was materials, this kind of good thing, I am afraid that no one can believe it.

Song Nan's eyes flowed, and he inadvertently saw the bowl he put on the ground, and his expression was solemn almost instantly, and the human resources department squatted down to see - the dagger in the water bowl was still there, and it was inserted obliquely in the bowl, but the white core actually disappeared!

Song Nan's own space, she naturally knew that it was impossible for someone or something to be able to take this crystal nucleus away under her control and without her noticing.

Well, there's only one reason. Song Nan raised his eyebrows slightly, is it really melted into this water?

Song Nan flipped the dagger and dodged out of the space.

After leaving the space, the place where Song Nan appeared was not far from the warehouse, but Song Nan was not in a hurry, he stretched out his hand towards a zombie a little away, and five metal wires shot out suddenly, just like dealing with the previous zombie, these five metal wires were completely in a state of sneak attack, and before the zombie could react, the head had already been separated from the body.

Song Nan carried the dagger, instantly dissected the zombie's head, and his subordinates neatly dug out the crystal nucleus, and then flashed out of the space again. Still took a bowl, and after washing away all the ** on the surface of the crystal nucleus, he found that this time it was actually a black first-order crystal nucleus, Song Nan still did not hesitate, filled half a bowl of well water with the bowl, and almost held his breath, and threw the crystal nucleus into the water.

Song Nan's eyes stared at the crystal nucleus in the bowl for a moment, she must see with her own eyes this time, whether this crystal nucleus is also going to melt!

Sure enough, as Song Nan expected, this crystal nucleus quickly dissolved and dissolved in the bowl until it disappeared, the process was so fast, if Song Nan hadn't seen it with his own eyes, he wouldn't have believed it.

But this crystal nucleus melts water, what will happen to this water?

Song Nan picked up the white core dissolved water at the beginning, and the exploration of her spiritual power told her that this bowl of water was now a bowl of energy, a bowl of high-grade pulsation, and a super-quality Red Bull. And the feedback of the spiritual power did not perceive that the energy of this bowl of water was repulsed from her!

Song Nan suddenly had a guess in his heart, could it be that the crystal nucleus melted by the well water had become an energy that was common to any system?

Looking at the clear and transparent water in the bowl, Song Nan hesitated for a moment, raised his head, and drank it all!

The water ran down his throat, and before he reached his abdomen, a familiar energy surged, Song Nan was extremely surprised, and hurriedly mobilized his ability to absorb this mass of energy, guiding the energy to the meridians, and running along the meridians. Five minutes later, Song Nan's eyes were full of joy!

It's true! She can absorb the energy of the white nucleus!

So the energy of this black core... Song Nan was holding another bowl of water, the feedback of spiritual power was still no abnormal conflict, Song Nan was quite impulsive because of the joy just now, the white core is still related to her spiritual ability, and the black core is a real crossover system, does she really want to give it a try?

Song Nan held the bowl, exhaled deeply, raised his head again, and drank it all again!

"Ho-ho"...

After Song Nan entered the space, the zombies in the electronics factory suddenly began to move, if Song Nan saw the skinny zombie, she could be sure that this zombie was a third-order zombie. But now that Song Nan is in the middle of the space, trying the crystal nucleus water, there is no way to know the situation in the outside world.

Under the command of the third-order zombies, the zombies in each factory slowly shook out and gathered towards Song Nan's target, the warehouse.

In the hollow eyes of the third-order zombie, there seemed to be a trace of red light flickering from time to time, reflecting his pitch-black carbonized face, which was particularly permeating.

At this time, Song Nan was ecstatic.

She even drank the bowl of the black core, and after the two crystal nuclei, she could clearly feel that her abilities had improved, not only in gold, but even in spirit.

With this well water, she will be able to absorb the crystal nuclei of all the line types!

Song Nan's eyes were red with some excitement, what an ecstatic thing this was!

In my previous life, I watched my teammates' line crystal nuclei never lack, but as for myself, it was rare to see a yellow crystal nucleus for half a year. can only temper his skills desperately before and after others, treat himself as a real man, fight, and try to ignore the unwillingness in his heart.

The scarcity of gold crystal nuclei is almost national, perhaps world-wide, in the crystal nucleus distribution ratio announced by the Beijing Base Research Institute, the fire system ranks first with a 27% occurrence rate, followed by the white core, and the gold crystal nucleus, but with a 4% appearance rate far from the bottom.

Without a crystal nucleus, relying entirely on his own combat perception, it took Song Nan three years to rise to the fourth order, far behind others, but the feeling of being powerless! She finally won't try again!

Song Nan smiled, laughing happily but bringing out a little tears, this jade ring space brought her so much hope, how real was she in her previous life, so she never found that this jade ring hidden space!

Song Nan put down the bowl, the more crystal nuclei collected today, the better, such an idea was originally there, but it became stronger at this moment!

Song Nan held the dagger in his hand and dodged out of the space.

The moment she arrived at the outside world, she was immediately startled by the zombies surrounded in all directions, and the roar of "roar" instantly remembered, and the claws of countless shriveled zombies stretched out towards her, and Song Nan was instantly stunned.

With a dodge, Song Nan returned to the space again.

"Why, all of a sudden, there are so many zombies!?" Song Nan couldn't believe it, there were obviously not a few heads just now!