After looking at the surrounding environment with the naked eye, she was worried that she was not careful enough, and then confirmed the safety of the surroundings with her perception, and only after making sure that there was no problem did she take out the crystal nucleus to absorb it.

One, two,......

A total of four or five have been used, and the energy has only recovered two-fifths, and some of these two-fifths have not been used up.

"Could it be that if you have advanced to the next level, you will need more energy?" Lin Yiyi asked to himself.

But if you think about it, it's right.

After the promotion, the energy needs are more, and when she uses it, she can support it for a longer time, otherwise in the previous battle, she used so many abilities, and the energy would have been consumed a long time ago, and where would it be enough for her to last until now.

It's just that if you want to recover all the energy, the crystal nuclei of these low-level zombies are too much needed now, and it is estimated that it will take twenty. Of course, these numbers are not a problem, she now has more than 2,000 crystal nuclei and nearly 3,000 crystal nuclei, and only twenty crystal nuclei are just scratching the surface. The problem is that it takes time to absorb twenty crystal nuclei.

It takes two to three minutes for each crystal nucleus to be absorbed, and when she has absorbed all twenty crystal nuclei, it is estimated that the two zombies don't know where to go, where will she go to find them for revenge?

She suddenly remembered the thunderbolt zombie she had killed before, and the purple crystal nucleus she had collected from it seemed to be much larger than the ordinary crystal nucleus, and the energy seemed to be very abundant, so why not use it to absorb it?

Lin Yi took out the crystal nucleus and looked at it in the palm of his hand.

The pink-purple ball is only a little larger than the ordinary crystal nucleus, but the color is much more dazzling, so you can feel that the energy inside is very full with the naked eye, and if you look closely, there is still a flash of electricity in it from time to time.

Is this the difference between mutating and not mutating? This crystal nucleus was dug from a lightning zombie, so its crystal nucleus will also have the glow of electricity?

Lin Yiyi didn't study these too much, anyway, whether it was or not, it didn't matter to her.

The crystal nucleus was placed in the palm of his hand and began to absorb it, and Lin Yiyi immediately felt that the energy inside began to fill him continuously......

When she had absorbed only one-tenth of the energy in the crystal nucleus, she suddenly felt two winds coming, and the target went straight to the crystal nucleus in her hand. She instinctively flipped her palm, and the person instantly stood up and flashed to the side, staring at the other party with a wary face.

"It's you?!"

Lin Yi said in surprise.

It turned out to be the two zombies who had just escaped, they had fled so fast before, and now they had actually fallen back again.

Seeing their eyes without pupils, staring straight at her hand holding the crystal nucleus, she could sense their excitement at this time without expression on her face.

Obviously, it was this crystal nucleus in his hand that aroused their interest.

Roar~

The two zombies failed because of the sneak attack, and they yelled unhappily and pounced again.

"Could it be that this crystal nucleus is useful to them?"

Otherwise, how can you explain how they were brought back when they had already escaped, and they were so excited, looking like they couldn't wait to get the crystal nucleus?

Lin Yiyi quickly dodged to the other side, dodging the opponent's attack.

I thought about it in my heart, and suddenly the word "energy" came to mind.

Zombies rely on the crystal nucleus in the brain to support their survival and control their actions, if the energy in the crystal nucleus is useful to the ability, then it is also likely to be useful to the zombie, if it can make the ability to restore energy, then for the zombie...... It is very likely that it will increase their strength and even increase their rank.

If that's the case, she'll have a hard time dealing with the two mutant zombies, and if she lets them be promoted again......

I'm afraid it's not good.