The eyes of Dudian, Sham, and Zach all fell on the deep blue sphere at the same time, and they couldn't help but be stunned. A sphere fell out from the skull? This sphere had a naturally perfect roundness, and its deep blue color was beautiful. Obviously, it wasn't some hardened intracranial tissue. Instead, it was like a blue metal ball.
However, how could there be metal in a living being's brain?
Dudian was full of doubts but didn't rashly touch it with his hand. Instead, he gently poked the sphere with his short sword. The tip of the sword immediately slipped on it, and the sphere was pushed and rolled to the severed neck of the walking corpse.
So hard! Dudian's eyes moved. Hard objects had poor activity and a slow transmission speed, and they wouldn't penetrate like a liquid. With the isolation of his gloves, it should be okay to touch it briefly. So he immediately reached out and picked it up.
As soon as he grabbed the deep blue sphere, Dudian shivered all over. The only feeling transmitted from his finger nerves was cold!
Extremely cold!
It was as if he was holding an ice ball. He couldn't help but think of the frozen blood in the walking corpse. Could it be because of this deep blue sphere?
At this time, the cold air seemed to spread. It climbed up Dudian's arm along the deep blue sphere. He felt that the temperature of his entire arm was dropping rapidly, and it became a bit stiff. He couldn't help but put the deep blue sphere in his other hand. Soon, this other hand also felt a bit frozen. At the same time, Dudian felt that his whole body was chilly, as if he was in the "Black Snow Season," extremely cold.
"How could this be? Even if you hold a block of ice with both hands, only your hands would be cold. How could your whole body feel cold? It feels like the cold air is coming out from the soles of my feet." Dudian was a bit surprised. It was like playing with snowballs in winter. At most, your hands would be cold, but your body would be warm. But at this moment, he felt that his whole body was cold, as if his whole body was pressed against a piece of ice.
He immediately put the deep blue sphere on the ground, rubbed his hands together, and blew on them. Only then did he feel a bit warmer. But soon, he felt a pang of hunger in his stomach. Since coming outside the Great Wall until now, he hadn't eaten anything. He endured it and suppressed the feeling of hunger. He looked at the deep blue sphere in confusion. Suddenly, he thought of a reason.
"Heat absorption!" Dudian realized. "This deep blue sphere can absorb heat, just like saltpeter in black powder. Saltpeter is not only one of the raw materials of black powder but can also be used to make ice. In this world, most alchemists only know how to use saltpeter to make ice but haven't discovered that a mixture of saltpeter and sulfur can explode..."
Saltpeter makes ice because it absorbs the heat in the water, so the water freezes.
And he had just felt that his whole body was getting cold. Obviously, this deep blue sphere also had the same heat absorption function as saltpeter. If he held it in his hand, it would absorb heat along his arm until it absorbed all the heat from his body, and his body temperature would decrease accordingly. When it decreased to a certain extent, his heart would naturally stop and he would freeze to death.
"No wonder, no wonder the bodies of these walking corpses are so cold. It turns out that this thing is causing trouble. But how did this thing come about, and why is it in the brains of the walking corpses?" Dudian was full of curiosity. If it was implanted into their brains by someone, it was naturally unlikely. After all, there were so many walking corpses. Implanting them one by one would require so much energy and time.
"If it wasn't implanted artificially, then it grew by itself. But although walking corpses are humans infected by a virus, they are still made of flesh and blood after all. How could such a hard object like metal grow, and it also has such strange characteristics?" Dudian was puzzled. At this time, a figure suddenly jumped down from the stairs, which immediately startled the people in the room.
When they saw that it was Mekin, they all let out a sigh of relief.
Mekin was also relieved when he saw that the three of them were there. He said unhappily, "You scared me to death. I almost thought something had happened to you downstairs."
Sham scratched his head and said, "I was so absorbed in watching Dian dissect that I forgot to go and tell you."
Zach reacted and quickly said, "You're down here. What about those walking corpses?"
Mekin rolled his eyes and said, "Of course they came back. I'm exhausted. Who of you can take over?"
"I'll go." Sham looked at the walking corpse with its head cut off. He felt his stomach churning and immediately said.
Dudian's train of thought was interrupted by Mekin. He thought about it for a while but had no clue. He couldn't help but sigh and stopped dwelling on this issue. Surviving was the most important thing at the moment. Suddenly, his eyes lit up, and he immediately said to Zach and Mekin, "Come with me, downstairs."
The two of them were a bit confused but still followed.
Dudian went downstairs. Seeing that the group of walking corpses outside had been lured away, he immediately sneaked to the corner, cut off the heads of the two dead walking corpses with his short sword, and then carried their heads and quickly ran back to the building. Seeing Mekin and Zach backing away in horror, he smiled and said, "It's okay. They're all dead."
Mekin said in horror, "Since when did you become so brave?"
"You'll get used to it." Dudian said something and turned back upstairs. According to the previous method, he split open the heads of these two walking corpses. Since the heads of these two walking corpses were already cracked, he easily cut them open. As he expected, there was also a deep blue sphere exactly the same inside.
When cutting the third head, Dudian suddenly thought of a question. He immediately stopped the previous rough cutting method. Instead, he slowly break apart the head along the cracked position of the skull. Soon, he saw the scene inside the skull. As he expected, the brain tissue inside the skull was also extremely cold, as if it had been frozen. And that deep blue sphere was lying wrapped in the brain tissue.
However, probably because the skull was cracked, the brain tissue around the deep blue sphere was a bit damaged. Dudian searched carefully for a while and soon understood that this deep blue sphere was the main reason for controlling the actions of the walking corpse!
The principle of killing a walking corpse by destroying its head had two aspects. First, it was to destroy the central nerve in the head so that the head couldn't control the body. Second, it was to destroy the connection between this deep blue sphere and the brain tissue in the head!
In simple terms, this deep blue sphere was like an ovary in the brain tissue. It wasn't necessary to destroy the head to kill a walking corpse. As long as there was a strong shock to shake the deep blue sphere out of the "ovary" of the brain tissue and make the nerves between the deep blue sphere and the "ovary" wall lose contact, the walking corpse could be stopped, that is, killed!
After understanding this, Dudian became even more puzzled. What on earth was this deep blue sphere, and why did it grow in the brains of walking corpses? Could it be created by the virus? In that case, wasn't this deep blue sphere a virus aggregate?
Thinking of this, Dudian immediately wrapped the deep blue sphere layer by layer with the cloth he had picked up, wrapping it into a sphere the size of a fist, and then he felt a bit more relaxed. Then he handed two of them to Mekin and Zach and said, "This thing can absorb body temperature and help us lower our body temperature. But don't hold it all the time, or it will absorb all the body temperature. It's best to put it in the backpack."
Mekin and Zach looked at these two things wrapped layer by layer in surprise. Mekin asked curiously, "What is this?"
"I don't know. However, after those hunters kill the walking corpses, they will dig out this thing from their heads, which shows that it should be very valuable. Otherwise, these hunters wouldn't turn a blind eye to things like gold and dig out this thing instead." Dudian said. He had seen many walking corpses with their heads split open, and this thing wasn't in their heads. It was obvious that it had been picked up by the hunters.
Mekin said in surprise, "You mean the hunters kill the walking corpses just for this?"
"Maybe."