“We are inside a giant's body.”

In the vast red sea, the Truth-seeker whispered softly, “This isn't good...”

At this moment, the president of the Demon Scientists Alliance was standing inside a semi-transparent sphere with a diameter of twenty meters.

The sphere was created by him using his mental power creation system, and it was indestructible. Besides him, there were two other figures standing in the sphere—Zhongli Mieming and Wang Buluxing from the Special Affairs Bureau.

“This should be a blood vessel for transporting blood.”

Wang Buluxing frowned as he looked at the endless river of blood outside the sphere, and said gloomily, “If we are in a large blood vessel in the human body, that's fine, but if it is a smaller blood vessel, the situation will be terrible.

I remember that the average diameter of a capillary is 6~9um, and the diameter of this blood vessel we observed is 900 meters, which translates to a difference of nearly 90 million times.

If the giant's body proportions are similar to those of a 'human,' then his height is estimated to be 160,000 kilometers, which is more than twelve times the size of the Earth, and even larger than Jupiter...”

“It's not that exaggerated.”

The Truth-seeker shook his head, glanced casually outside the sphere, released his spiritual energy, and extended a tentacle from the sphere to capture a huge, flat, red object floating in the river of blood. “This should be a red blood cell.

The diameter of a human red blood cell is about 8um, and the diameter of this red blood cell is 56 meters,

The magnification is seven million times.

If the giant's body proportions are similar to those of a 'human,' then his height should be 12,600 kilometers, which is just about the diameter of the Earth.

However, it is unreasonable to use the proportions of human red blood cells to estimate the size of a giant—a giant the size of a planet would have its own gravity that would destroy its body organs from the inside out and hinder blood circulation.

It also fails to explain the square-cube law of organisms—the heat emitted by such a large life form would be enough to destroy any carbon-based cells like the Earth's core.

Of course, it is also possible that we have been shrunk and teleported into the body of a homeless man on the streets of Colorado.

Anything can happen in the Slaughter Game. We just need to gather information and consider the current situation.”

“Mm.”

Zhongli Mieming nodded sullenly, glanced at the satellite phone in his hand that was not responding, and pursed his lips slightly.

The giant's body was too large, and the body parts, from large blood vessels to small cells, were different from what they knew in the real world.

Since they were teleported in, they haven't been able to contact anyone else, and they don't know the situation of the other transcendents.

“Still no contact?”

The Truth-seeker casually released the ignorant and huge red blood cell that resembled a tall building. “Then I'll do it.”

Wang Buluxing asked, “What are you going to do?”

“First, figure out where we are.”

The Truth-seeker controlled the sphere to rise rapidly, approaching the top of the blood vessel, and said lightly, “Although the Sima Battle has no time limit,

The task of reaching the giant's heart and surviving is a time limit in itself—only by reaching the heart within the hidden time can we survive.

If we are in an artery, then this blood vessel leads to the organs and tissues,

But if we are in a vein, we can follow the blood to the heart...”

Crack—

A series of continuous sounds interrupted the Truth-seeker's calm narration.

A large number of semi-transparent strip-shaped tiny objects, like Lego bricks, had attached themselves to the outside of the sphere. These objects pieced themselves together, forming complex structures that dazzled the eye at lightning speed, densely covering a large area of the sphere.

“What is this?”

Wang Buluxing was shocked and subconsciously clenched his fists, preparing to use the Bi An Armor on his arm to attack.

However, before he could react,

The complex structure of "Lego bricks" outside the sphere further expanded and spread,

And like a rocket launch platform, it automatically launched a large number of semi-transparent particles like missiles towards the river of blood.

“This is... the complement system?”

Zhongli Mieming's eyes flickered, and the smart chip implanted in his brain automatically transmitted the information to his mind.

“What's that?”

Wang Buluxing frowned and was about to ask when the Truth-seeker directly transmitted the information to his mind through mental power.

The complement system is a protein reaction system with precise regulatory mechanisms, which is part of the immune system and is composed of complements (a serum protein present in the serum and tissue fluid of vertebrates).

The human immune system is large and complex, including immune organs (such as bone marrow, spleen, lymph nodes, etc.), immune cells (lymphocytes, mononuclear phagocytes, neutrophils, platelets, etc.), and immune active substances (antibodies, lysozymes, complements, etc.).

“The complement system is responsible for coordinating phagocytosis, cell lysis, mediating inflammation, immune regulation, and clearing immune complexes. It can also be simply understood as the sentry and traffic police of the immune system.

What is now attached to the outside of the sphere is called complement C3Convertase, or a similar protein recruitment platform.

It treats us as some kind of bacteria that came in from the outside. On the one hand, it continuously accepts free proteins in the blood, changing their shape through collision, thereby increasing itself and slowing down the movement speed of the sphere.

On the other hand, this protein recruitment platform will guide other free proteins to split and emit more C3a proteins—which are the semi-transparent particles that are launched.

You can understand it as a distress beacon.”

Wang Buluxing said in shock, “A distress beacon?”

“That's right, a beacon that sends a warning to the entire immune system.”

The Truth-seeker said quietly, “We are now exposed.”

Boom!

A deafening roar sounded around them.

Zhongli Mieming and Wang Buluxing's expressions changed slightly, and they each activated their detection skills. Through the dense sea of blood, they saw countless huge round spheres that were originally dormant in the upper and lower reaches of the river of blood slowly unfold and transform into a large number of strange monsters.

The monsters were all more than fifty meters tall, and their colors and shapes varied.

Each one differentiated into different fangs, sharp teeth, whiskers, tails, one-eyed eyes, and other organs.

As if they had received an order, they swam continuously towards the three transcendents.

“Neutrophils in white blood cells.”

The Truth-seeker said in a deep voice in the spiritual network, “They are a very important part of immune cells, and are at the forefront of resisting microbial pathogens, especially pyogenic bacteria, and have strong phagocytic activity.

The quantity is 10^9 per L, with an average of 4000 per microliter.

Considering the length of the river of blood, there are probably a hundred thousand 50-meter-level white blood cells in this area. And as C3a proteins fly farther and farther like missiles, sending alarms to the immune system, other white blood cells will soon pass through the capillary walls through deformation movements and rush here continuously.

Roughly calculated, optimistically, we are already surrounded by an army of millions.”

Along with the Truth-seeker's words, a vast number of 50-meter-level white blood cells crossed the vast river of blood, waving sharp teeth and claws, rushing towards them, making the spiritual energy sphere look like a small boat.