Chapter 493

Until it was dark, people came back to the house.

Chen Yu didn't let Cheryl and Yula jump into the lake again to take a bath. If they were allowed to go down the lake again, it would be dark again.

Let them clean up in the swimming pool first, and then go back to the house.

Although there is a swimming pool at home, Chen Yu and fari seldom use it.

When Chen Yu and fari play with water, they usually go to the lake.

They also like the feeling of the lake. Most of the swimming pool is used and played by pets at home.

Of course, they change water every day.

But when EULA and Cheryl came back, Cheryl helped her back.

Chen Yu frowned, and pulled you Lala to his side. "Yula, what's the matter with you?"

"Nothing, just feeling a little tired."

Chen took out the stethoscope and examined EULA's body.

The last time Chen Yu gave Yola's medicine, it increased Yola's resistance.

But EULA's body is still too weak, and she is still very easy to get sick.

And when she gets sick, it's very dangerous for her.

Chen Yu is not willing to control Yula and restrict her from doing this and that.

If he could, he would like Euler to grow up happily.

Instead of being a caged bird, watching others play, she can only watch silently beside.

Only in this way, she agreed that it would be dangerous.

Yola has a low fever. Because of Yola's special constitution, you can't take anti-inflammatory and anti fever drugs at will.

At this time, Lao Hei appeared beside Chen Yu.

"I feel her death."

Chen Yu's face was suddenly bad. He was not angry with the old black.

Whether the old black exists or not, it means that Yola's physical condition has deteriorated again.

And this time it's life-threatening.

This also means that Chen has no time for further research.

Chen recalled that when his mother first brought him to the United States, she wanted to donate her own bone marrow.

This shows that your bone marrow and Yula are matched.

Generally speaking, brother and sister's bone marrow matching rate is the highest.

Of course, Chen Yu and Yola are the same mother and father.

In fact, donating bone marrow sounds terrible. In fact, it's not as terrible as you think.

And now there's a safer donation plan than in the past.

To donate bone marrow, we need hematopoietic stem cells in bone marrow.

In fact, the hematopoietic stem cells of the human body are the progenitors that split themselves, and then more and more.

So after extracting bone marrow, in theory, hematopoietic stem cells will divide rapidly to make up for the reduced part.

In the past, bone marrow donation had a certain amount ratio. Although it was relatively safe, there were still certain risks.

Now it's a blood culture method. Only a small amount of bone marrow hematopoietic stem cells need to be extracted and then cultured in the blood.

So for donors, the risk is minimized, even as much as blood donation.

It's also called peripheral blood stem cell transplantation,

"Cheryl, you go to have a rest, Farley. You sleep with Cheryl tonight." Chen said.

"Well." Fari saw Chen's solemn face and nodded.

Chen Yu took Yula in his arms and went down from the basement: "Lao Hei, come and help me."

Chen Zhu has no conditions for culture medium, so he can only carry out bone marrow transplantation directly.

But this kind of transplantation is mainly on Chen Yu. As a donor, Jura only needs passive blood transfusion, so there is no problem.

The main problem is Chen Yu, who needs to find someone to transplant his bone marrow.

Therefore, Chen needs to let Lao Hei extract marrow for him.

Then complete the transplantation process, and it must be carried out in the space gap.

"Chen Yu, first you open a mouth on your back, and then I use life to extract your marrow."

"Well." Chen Yu lies on the cold metal bed, stabbing himself in the back.

Yola is lying on the other bed beside her.

"Is the cut big enough?"

"Enough, all right."

Old black began to cast magic, first blood was taken out.

Then Chen felt a sharp pain. The white matter mixed with plasma and gathered on the old black palms.

"Almost enough." Chen said.

Lao Hei gently pushes the liquid on the palm to Euler's face, and the liquid begins to penetrate into Euler's body.

At this time, a black pattern suddenly appeared behind the old black.

This black pattern is like the * * of Buddhism. Chen Yu looks at Lao Hei in wonder.Old black seems to have never heard of it, but he is still concentrating on his magic.

Finally, the bone marrow is fully integrated into Euler's body.

Only then did Lao Hei stop, and then he found his own change.

"Eh?"

"Lao Hei, what's the matter with you?"

"It's a strange feeling that I've become stronger."

"Why?"

"It seems that I saved your sister."

"The enchanting messenger saves people and gets rewards?" Chen Yu looks at Lao Hei with strange eyes.

"No, to save a man who must die."

Lao Hei reached out to pull his hood, but his face was like Chen Yu's.

"Fu * *, why are you like me?"

"I can be anyone. Looks mean nothing to me now." Old black turned into the face of Fanny again.

"Stop it for me, and don't make you look like Fanny."

"All right." Lao Hei put on his hood again.

"Can the aperture behind you disappear? It looks awkward. "

"I can't, it's a symbol of my ability."

"Just one more aperture, what's the point?"

"Now I am no longer the messenger of enchantment, but the messenger of death."

"Well, the title sounds more intimidating. What else has changed?"

"I can show up in front of people."

"Well, it looks scary. Anything else? For example, help me kill who and who. "

"No, if I kill, I will still be punished."

"After all, it doesn't work."

In fact, the biggest effect of Laohei is to deal with evil spirits.

He also has the greatest deterrent power over Chen Yu's demon servants.

Even Samuel is no match for old black.

However, with the attitude of Laohei, he doesn't seem to be too excited about his promotion.

Later, Chen Yu carried Yula out of the space gap.

In a daze, Yola seemed to wake up.

However, he was not awake until the outdoor light came on, which made Euler wake up.

"Brother I just saw heaven... "

"Why do you think so?"

"There is a great castle, that is the castle of heaven."

"Ha ha You think so. " Chen can't say that what you see is not heaven, but death's nest.