While the operation was in progress, the group was also preparing to retreat.

Several people took advantage of the sandstorm to dig outside.

After being encircled, the knights buried their vehicles in the ground. Although this sandstorm can block a lot of things, it is not always so heavy, and there are always times when it is relatively thin. If the satellites passing by in the sky happen to catch clues during this time, it is a nuclear bomb that has fallen from the sky.

You know, Tao Enhai is here. The identity of this old chivalrous man is not worthy of space-based garbage.

They put away all the scattered supplies. Take away what you can take, and if you can't take it away, just put some thermite and burn it all in one fire.

Those 3D printers are also a treat. Take away what you can take, dismantle what you can't take away, or simply plant explosives.

Everything that is capable of storing information is taken away.

It's just that none of these things are so time-consuming.

Soon, the group was completely prepared.

Only the operating room remained.

And Xiang Shan has already worn the optical auxiliary instrument - it looks like exaggerated lenses, very cartoonish. Due to the size of the brain and skull, the size of the prosthetic eye is limited. The eye socket is so big, there is so much light that can pass through, and the accuracy can only be so high.

Although the pair of eyes that Tao Enhai gave to Xiang Shan were powerful, they could not transcend the laws of optics.

And this auxiliary lens can make Xiang Shan directly reach the level of a high-powered optical microscope.

He put down the scalpel and said, "The separation of the spine is complete." Dr. Tao, how are you doing? ”

A series of complex ripples appeared on a window in the corner of the view to the mountain, and then a few large characters appeared: Sensitive thinking, no abnormality.

Since there is no tactile sensing device in the brain, the anesthesia process can be omitted in this operation. Staying awake also helps the surgeon to confirm whether there is a mistake in the operation.

At least not yet.

Xiang Shan said to Lu Xiu: "You come and break open the skull." ”

He needed a little rest.

Opening the skull requires less complex technique - it's still essentially a blacksmith's job. Tao Enhai's skull already had a clasp that could only be controlled by the system. Before the operation began, Tao Enhai had already lifted these locks.

Layer by layer from the outside to the inside will do.

Soon, Luciu dismantled the skull, revealing a brain connected to a life-sustaining device and computing unit. The brain is encased in a layer of silvery-gray clusters. If a natural person touches it, it will even feel a little hard.

Xiang Shan said: "The electronic equipment is about to be disassembled, Dr. Tao, how are you feeling now?" ”

Tao Enhai still retains a certain sense of perception, and can observe the outside world through the signal input from the camera, and can also output information through wireless signals. But as soon as the electronic devices connected to the brain are detached, he really falls into complete darkness.

Theoretically, he would feel that his "perception" and "emotion" themselves were being stripped away little by little.

[It's okay.] Tao Enhai didn't have the slightest worry: "I saw what you did just now. It's OK. Let's keep going. 】

Lu Xiu glanced at the mountain. He found that some of the knight's habits were indeed close to his teacher. Xiang Shan nodded at him and said, "Go on." ”

Lu Xiu comprehended and slowly removed the electronic device on Tao Enhai's brain.

Xiang Shan covered the side of his head with one hand.

As the operation progressed, he found that Tao Enhai's memories of the operation were actively flowing in. I don't know if it's his own forgotten memories that resonate with it, or if the memory storage format of the new era has become so close to the human mind.

But the incident was reminiscent of him...... More memories of the past.

And that caused pain.

"Hero?" Lu Xiu looked at the mountain a little abnormally, and couldn't help asking.

"It's fine." Xiang Shan shook his head, as if he wanted to shake the phantom pain out: "Transfer to the hatch of the protective cabin and start peeling off the brain-machine barrier." ”

Lu Xiu nodded, picked up the brain, transferred it directly above a jar, and then took out two scalpels as thin as needles, and began to make big moves on the surface of Tao Enhai's brain.

The brain-computer barrier is a protective layer formed by the accumulation of metal-based proteins on the protocerebral blood barrier. Influenced by neurobioelectricity in the brain, the lines of the brain-computer barrier are closely related to the structure of the higher cortex. As a result, it became the basis for natural brain-computer interfaces.

Lucieu quickly completed the divestment.

Then, the canned protective cabin opened, and Lu Xiu dragged the brain with one hand, changing the door and smoothly feeding it into the protective solution.

The configuration of this protective solution is also very particular. Tao Enhai will soon be hollowed out of the inner layer of the brain, leaving only the neocortex. In this case, the brain loses its supporting structure.

The neocortex, on the other hand, is where all kinds of higher-order thinking activities and memories reside. The structure of the network of nerve cells is the material basis of the human soul.

Even the only impact on the neocortex can cause subtle changes in temperament or memory impairment. Not to mention folding.

And the preparation of this protective solution is also very particular. It ensures that the nerve tissue is subject to just the right amount of buoyancy and is suspended in the liquid. Even if the inside of the brain is hollowed out, the outside can be suspended.

At the same time, its osmotic pressure is the same as that of cell fluid.

And while ensuring these two points, the protective solution must also be transparent.

Otherwise, the surgeon's view will be obscured.

Xiang Shan, on the other hand, connected the data interface of his wrist with the data interface of the protection cabin.

Soon, Xiang Shan gained an additional view - it was the bottom of the protective cabin.

Countless tiny arthropod-like limbs protrude from the edge of the field of vision. Although these limbs are as thin as a needle, some have sharp edges and some have bifurcated tips. These things can be manipulated at the cellular level.

What's even more commendable is that these small limbs are all mixed with extremely sensitive pressure-sensitive materials.

They all provide a "sense of touch".

Xiang Shan took a deep breath: "Let's put on the anesthetic." It's up to you to decide what kind and how much to dose. ”

Xiang Shan is not so familiar with the medicine of this era.

"Ah...... I'll ......."

"There's nothing to 'ah'." Xiang Shan said sternly: "If it weren't for me here, then you wouldn't just have to be anesthetized. ”

Originally, surgery required a specialized anesthesiologist. Anesthesia not only reduces the patient's suffering, but also reduces the interference of the patient's activities with the surgeon. However, each person has a different tolerance and response to a particular type of anesthetic – especially the reloaded man-made enzyme system of the base human. This requires an anesthesiologist to grasp and grasp.

One is not good, and "anesthesia" becomes "death penalty".

In modern surgery, not only the surgeon, but also the anesthesiologist bears the patient's life.

Lu Xiu nodded, and soon through a pipe, he injected several drops of medicine into the protective cabin. He was familiar

Xiang Shan took a deep breath.

Neurosurgery is the crown of surgery, and the difficulty and risk are frighteningly high. The terrible threshold was enough to drive most doctors interested in the brain into neurology.

"I know enough about primate nerves." Xiang Shan said to himself: "I have done similar ...... before"

Memories surged again.

That was in the distant past. "Wuzu Xiangshan" acts as an assistant to assist Tao Enhai in operating on a knight who has injured his biological brain.

Xiang Shan did not hesitate again. Inside the protection cabin, many small "surgical limbs" cut towards Tao Enhai's brain.

Delicate but sticky touch......

The bottom of Tao Enhai's brain was close to a mess of rotten meat.

According to Tao Enhai's own words, he was already aware of the hands and feet of the God Speed King in space. It's just that there are no conditions in space, so he relies on inhibitors to support him all the way to Earth.

According to Tao Enhai's original idea, he originally wanted to find a doctor on Earth. Although in this era, there are very few such doctors in the non-scientific knights, but there are always people in the rivers and lakes who can perform this operation.

In Tao Enhai's opinion, it is better to wait a while than to take a great risk to let the disciple get started, and then leave a psychological shadow on this young disciple. It's better for both yourself and Luciu.

But as soon as Tao Enhai landed, he was surrounded by asylum hunters.

What's even more unfortunate is that none of the knights who came to the aid had this skill.

No, maybe there were also doctors to help, but they fell on the way.

If it weren't for Xiang Shan, Tao Enhai would have lost the bet.

Xiang Shan continued to manipulate the operated limbs, cutting out a piece of tissue from Tao Enhai's brain. As soon as the tissue is out of the brain, tiny limbs drag it to the bottom of the chamber and send it out.

The lowest part of the body doesn't look like brain tissue at all. Xiangshan sat up quickly.

However, as he approached the hypothalamus, Xiang Shan's movements slowed down.

- Care must be taken......

Normal nerve tissue is entangled with cancerous cells.

Raise the spirit of 120,000 points to the mountain.

But unexpectedly, the more Xiang Shan was like this, the smoother the operation became.

- No......

Xiang Shan was suddenly shocked. Halfway through the operation, it is not "you" who are in charge.

There was something "something" that flowed from the inside of his "soul" and put a "hand" inside the protective cabin......

The technique of commanding those limbs is not just to the mountains.

- I see......

Xiang Shan understood in an instant.

- Dr. Tao, you're fighting alongside me......

The source of this information is the memory that Tao Enhai just gave to Xiang Shan.

It contains the memories of Tao Enhai.

Skilled surgeons may perform surgeries while challenging unfamiliar surgical procedures. This doesn't necessarily mean that he will do a bad job. In other words, only people who have extraordinary confidence in their craft will do such things.

And what Xiang Shan did was an upgraded version of this kind of thing. His level of internal strength allowed him to control Tao Enhai's power.