Fortunately, there were not many people on the tenth underground floor at this time, and the few people who walked by from time to time were all wearing work clothes with masks on. Lin Tao walked past them calmly.

Perhaps people here rarely communicate with each other, so Lin Tao walked past them smoothly.

After they disappeared from view, Lin Tao looked at the topographic map shown on his watch and headed straight towards the target.

“This is it.”

A small golden metal door appeared in front of him. Lin Tao quickly raised his watch and felt that there were no light spots representing human figures nearby. He quickly put his hand on the door.

"Zheng, does this door need a password?"

A beam of light shot out from the core sphere of Zhe and landed on the door: "There is a password, please wait a moment."

The light beam changed from white to blue with a swish sound. Not long after, a beeping sound came from the metal door. At the same time, a fierce voice came to Lin Tao's ears: "It has been unlocked."

Lin Tao quickly pushed the door open and left.

After entering, he locked the door again and looked up, only to see rows of flashing mainframes placed in the room.

The data is inside the host.

Lin Tao quickly called out Zhe: "Zhe, it's up to you."

The core ball of Zhe flew out from the watch strap with a puff. In the blink of an eye, the memory metal on Zhe's body turned into long threads like needles and threads, which were inserted into the main unit with a click.

Buzz buzz buzz~ After the long wire made of memory metal was inserted into the main unit, the main unit suddenly made a buzzing sound of accelerated rotation.

Lin Tao frowned secretly: "Zheng, will such a big noise attract attention?"

"I know my limits, don't worry." Zhe didn't care.

Seeing it so confident, Lin Tao also closed his mouth and waited quietly for Zeng to receive the data.

However, this would take at least twenty minutes. After Lin Tao frowned slightly, he suddenly had an idea: "Zheng, I'll go for a walk outside."

The core sphere of Zhe flashed a few times: "If everything goes well, I will be able to receive all the data in about 26 minutes. Remember to come back here."

Lin Tao nodded, looked at his watch, and seeing no human figure around, he quickly pushed the door open and went out.

"The fifteenth floor?" Looking at the elevator entrance at the end of the corridor, Lin Tao's eyes flashed with a cold light.

He was very curious about the fifteenth-floor experiment mentioned by the man in the locker room. Having experienced the human brain intelligence experiment conducted in the Lin family capital, Lin Tao doubted whether the Interstellar Federation would also conduct the same experiment.

According to later records, when the eight great families split, they had super high-performance mechas, which were the mechas with human brain intelligence that Lin Tao had discovered before. In this situation, Wei Hongxin suddenly appeared and defeated the mechas of the great families with the power of a mecha, turning the tide and causing the eight great families to return home in defeat.

This will allow the Interstellar Federation, which is currently at a disadvantage, to continue into the future.

Lin Tao was very skeptical. What kind of machine was Wei Hongxin driving that could defeat the human-brain intelligent mechas of the wealthy forces one by one?

Unfortunately, neither the machines of the eight great families nor the machine of General Wei Hongxin of the Stars could be preserved to later generations.

Is it a machine with the same intelligence as a human brain? Lin Tao's heart sank.

Thinking of this, Lin Tao flashed and with a whoosh, he flew towards the elevator at the end of the corridor.

There was no one along the way.

After Lin Tao entered the elevator, he directly entered a string of digital passwords into the elevator.

With Zeng by his side, Lin Tao could take the elevator directly without any password. Now, he was the only one there, and he couldn't help but feel fortunate that he had obtained the password in the locker room earlier.

After entering the password, Lin Tao raised his hand and directly pressed the fifteenth floor.

When the elevator door opened again, Lin Tao successfully arrived at the fifteenth underground floor under the mound.

Looking up, the layout of this place is almost the same as that of the tenth floor. Outside the elevator entrance, there are also criss-crossing metal passages. These metal passages exude a strong metallic feel, and their thickness is obviously much thicker than the ten floors above.

This is no wonder. The deeper you go underground, the stronger the pressure from all around. If the walls are not reinforced, they will collapse in a short time.

Putting aside these distracting thoughts, Lin Tao raised his watch and took a look at the topographic map. He took a step and walked towards the "special place" indicated by Zhe.

Compared to the tenth floor above, there are a lot more people on the fifteenth floor.

Along the way, I occasionally met people wearing the same work clothes.

When these people saw Lin Tao, they all greeted him in a friendly manner. Lin Tao said nothing, but just casually waved in response.

"This is it." Lin Tao stopped in front of a door with two glass panels. Zhe had warned him more than once that there were instruments inside that could detect its presence.

Lin Tao looked inside through the translucent glass window cautiously. In the room, Lin Tao had not yet noticed the instrument that could detect evil spirits. Instead, he saw more than ten huge glass tanks filled with green nutrient solution standing on the ground.

Seeing this scene, Lin Tao's face darkened and the thought of looking for the instrument was instantly thrown out of his mind.

The secret place on the Lin family's capital planet also uses this nutrient tank to cultivate the lingering human brain. Could it be that the Interstellar Federation is also conducting the same research? Lin Tao always thought that the Lin family started the research and development of human brain intelligence with the help of the three-eyed people, but he never thought that he would see the same scene in the basement of the Interstellar Federation's capital planet.

This shocked Lin Tao and also made him vaguely suspicious of the Interstellar Federation.

Tap, tap, tap. A burst of hurried footsteps came from behind.

"Great, someone is finally here. Come in right now. I need you to help me with an experiment."

The voice sounded a little old. Although he was wearing a mask, Lin Tao still felt that the man was a middle-aged man in his sixties. As soon as he finished speaking, he pulled Lin Tao and pushed the door open.

Lin Tao was stunned for a while, but he decided to remain calm and see what kind of experiment the old man was doing.

The old man led Lin Tao into the room and came to one of the nutrient tanks. After he operated the control panel for a while, he saw the green nutrient solution in the nutrient tank making a gurgling sound.

As the sound rang out, the nutrient solution in the nutrient tank gradually receded.

What's going on? Lin Tao was shocked.

If the human head is cultivated in the nutrient tank, once the nutrient solution disappears, the head will inevitably lack nutritional supplements and will wither quickly, just like what happened to the Lin family's capital star.

Could it be that they are not cultivating human heads? When thinking about this, Lin Tao's eyes flew to the nutrient tank.

It didn't take long before a layer of nutrient solution in the nutrient tank had faded away.

"That is..." Suddenly, Lin Tao's expression changed drastically, and his eyes flashed with a cold light, faintly emitting a murderous intent.

A human head actually appeared in the nutrient tank.

However, after a moment, Lin Tao's expression did not change and he was soon startled again.

Although the head in the nutrient tank had no hair or beard, he could still recognize from its appearance that the owner of the head was Wei Hongxin! No, that was not Wei Hongxin, Lin Tao shook his head repeatedly.

Wei Hongxin was participating in the war in the starry sky at this moment, so how could he appear here? Was it Wei Feihang? Lin Tao was puzzled and looked again, but he quickly put this thought aside. Although Wei Feihang looked the same as Wei Hongxin, his face was a little gloomy. As long as he observed carefully, he could easily recognize him.

It’s neither Wei Hongxin nor Wei Feihang, so who is the person in this nutrient tank?

Lin Tao was filled with doubts.

It’s a pity that Zhe stayed on the tenth floor to receive data. Otherwise, with its database, it might only need to scan it to find something.

After the human head appeared, the nutrient solution in the nutrient tank receded faster, and in a moment, it completely disappeared from the water hole at the bottom of the nutrient tank.

After the green nutrient solution was lost, the situation inside the nutrient tank was finally revealed.

However, after seeing the situation in the nutrient tank, Lin Tao was stunned for a moment, and then his heart seemed to be surging with waves, and his whole body began to move.

Inside the nutrient tank that had been emptied of nutrient solution, there was a human with healthy limbs.

This man was completely naked, with no hair or beard. After careful observation, Lin Tao recognized him at a glance. If the person inside was not Wei Hongxin and Wei Feihang's twin brother, he was at least the same type of person as them.

"Clone!"

In an instant, this word emerged in Lin Tao's mind.

Yes, only clones can explain why the people in the nutrient tank have the same faces as Wei Hongxin and Wei Feihang.

"Is he a clone of Wei Hongxin? Or Wei Feihang?" Lin Tao frowned secretly, with doubts in his heart.

"Have you seen enough?" The middle-aged man behind the mask said as he opened the glass cover of the nutrient tank on the control panel. "If you have seen enough, help me move him out immediately. I still need to conduct a gene elimination experiment."

Gene knockout experiment?

Lin Tao was stunned for a moment, but this was not the time to be stunned. He hurried forward and helped the clone who was still breathing in front of him out.

After helping the person out, Lin Tao helped him onto the experimental table nearby.

Following the middle-aged man's instructions, Lin Tao fastened safety belts around the clone's limbs and waist, securing him tightly.

"Okay, you can go." After everything was done, the middle-aged man waved his hands repeatedly and drove Lin Tao away.

Lin Tao's face darkened, but at the same time he felt relieved. Although the nutrient tanks standing around were filled with green nutrient solution and he couldn't see what was soaked in them, Lin Tao knew that what was inside must be the same clones as the ones in the experiment before him.

"What? Do you want to learn from me?" Seeing that Lin Tao was still standing there, the middle-aged man couldn't help but put his hands on his hips and shouted angrily: "With your current abilities, it's not the time to learn these techniques. Leave here quickly, or I will apply to the higher-ups to transfer someone else over."

After being scolded repeatedly, Lin Tao had to leave the room.

Of course, before leaving, Lin Tao still glanced around, trying to find the instrument that could detect the presence of the monster. Unfortunately, before he could look a few more times, he was pushed out by the middle-aged man behind him.