Time passed quietly. Unknowingly, Yang Xuan had already absorbed all eight white crystal cores.
After absorbing the eight crystal cores, Yang Xuan felt that his strength had only increased by less than half. According to his original estimation, the eight crystal cores would increase his strength by nearly one fold, but the reality was not what he imagined.
"From the looks of it, I'll probably have to absorb 20 crystal cores to double my strength!”Yang Xuan was a little disappointed, but he understood after thinking about it. His current body was twice as strong as before. If he were to increase it again, the difficulty would definitely increase.
It was like running. If your limit was running 100 meters in 10 seconds. It would be very difficult to improve on this foundation, even if it was shortened by one second.
"The first time, ten crystal cores doubled my strength. The second time, however, he needed 20 crystal cores to double the power. Then, if he wanted to increase it again, would he need 30 or 40?”
Yang Xuan shook his head. Those were still too far away. He would know when he had enough Crystal Cores in the future. Right now, he was continuously improving!
Thinking of this, Yang Xuan's gaze fell on the untouched blue crystal core in his hand.
"A light yellow crystal core is equivalent to two white crystal cores. I wonder how many crystal cores this blue crystal core is equivalent to?”
Yang Xuan used the kitchen knife to grind it slowly. However, the hardness of this crystal core was beyond his imagination. It was many times harder than the white crystal core. The kitchen knife grinded on it for more than ten minutes, but it only left a shallow mark!
Yang Xuan had no choice but to grind it slowly.
"Crack!"
After an unknown period of time, a crack finally appeared on the crystal core. Although it was very small, the liquid inside could still be poured out. Yang Xuan's spirits were lifted. He glanced at it, hesitated for a moment, then gritted his teeth and drank it.
"Hot, so hot!"
As soon as he drank the blue liquid, Yang Xuan felt his entire body heat up, as if there was a ball of fire burning in his body. His face was flushed red, and cold sweat flowed down his forehead. He felt as if he had jumped into boiling water.
It was too hot!
Yang Xuan gritted his teeth and held on.
Wang Chen and Ye Feng were still working on the crystal cores, so they didn't notice his abnormality at all. Meanwhile, Fatty had already absorbed two of his crystal cores when he was grinding the white crystal core. He was already asleep and snoring...
Endure! Yang Xuan gritted his teeth and broke out in a cold sweat. He felt that his limbs and bones were burning. As time passed, the burning sensation in his body gradually faded, and the temperature in his body slowly decreased.
As the burning pain in his body weakened, a force that was like bamboo shoots began to grow rapidly in his body. Yang Xuan could clearly feel that every cell in his body was expanding and compressing...
Ten minutes later, Yang Xuan had returned to his normal state. The burning sensation in his body had completely disappeared. At this moment, Yang Xuan felt that the strength in his entire body had suddenly increased by a large margin!
Clenching his fist, a cracking sound could be heard. Yang Xuan looked at his hands and waved them gently a few times. They actually let out a whistling sound.
Yang Xuan weighed the spear in his hand and found that it was as light as a chopstick. It was not that the spear had become lighter, but that his strength had suddenly become too powerful.
"My current strength…is probably four times that of a normal person!”Yang Xuan's eyes became fanatical. Four times the strength!
An ordinary person could lift something weighing more than 100 pounds. But now, he could lift four hundred jin!
400 catties might not sound like much, but in reality, it could play a huge role. Yang Xuan's weight was only 150 pounds, which meant that he could stand upside down with one hand on the ground!
Most importantly, his strength had increased by four times, and his speed had also increased by four times! With four times the speed of a normal person, when he moved, he would definitely be like a gust of wind!
He only needed 2.5 seconds to cover the distance of 100 meters.
What was the concept of running a hundred meters in 2.5 seconds?
According to scientific research, when the human body's strength reached twice its weight, it could leap over roofs and run over walls at a certain speed!
The ancient qinggong was not without basis. If Yang Xuan ran at full speed now, he could also walk on the wall!
Even if he were to encounter the same black rat during the day, Yang Xuan would have the ability to resist now!
At this moment, Wang Chen and Ye Feng's voices came from the side.
"I've finally finished absorbing it."
"My strength has increased a lot!"
Wang Chen and Ye Feng were overjoyed as they felt the power in their bodies increase explosively.
"How much did your strength increase?”Yang Xuan asked.
"My current strength is 1.5 times that of a normal person!”Ye Feng said excitedly.
"Mine is double!" Wang Chen said. Since he was a soldier, his body speed was already very fast. With the strengthening of the crystal core, it was not surprising that he could reach twice the speed.
"Bang bang!"
At this moment, there was a knock on the door. It was late at night, so why was there a knock on the door?
The three of them did not have time to rejoice. They looked at each other. Yang Xuan looked at the door. The knocking was still going on, not as loud as when the mutant knocked. This made Yang Xuan a little suspicious.
"Could it be that survivors have found this place?”Ye Feng said nervously. The entire neighborhood was now dominated by mutants, but the knocks of mutants had always been loud. They would never knock slowly like this.
He said that he was a survivor…but if he was a survivor, standing outside the corridor in such a dark night, wouldn't he want to enter the room urgently?
However, the knocking on the door was irregular, as if there was a pattern to it.
"What should we do?" Wang Chen and Ye Feng both looked at Yang Xuan.
Yang Xuan suddenly realized that he had unknowingly become the leader of the four.
Taking a deep breath, Yang Xuan felt an inexplicable nervousness in his heart. People tended to be more afraid of unknown and terrifying things!
"Open the door first!" Yang Xuan calmed himself down. He felt a sense of security when he thought of the increase in his strength.
Yang Xuan walked over with a kitchen knife in his hand and carefully walked to the door. At this time, Wang Chen and Ye Feng also walked over warily. The three of them stood together and became bolder.
At this moment, the knocking on the door was still ringing.
"Creak!" Yang Xuan unlatched the door and opened it. At the same time, he looked outside.
"Hmm?"
"Strange!"
"No one?"
Yang Xuan and the other two widened their eyes and looked outside the door. It was pitch-black, but there was no one there…
But there was clearly a knock on the door just now!
The few of them looked at each other and found that each other's expressions were a little stiff. A chill rose from the bottom of everyone's hearts.
……
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