By the time the old man was busy with the work in hand, it seemed that half a day had passed. At this moment, he seemed to remember Li Xuan, who was still locked in the iron cage, pulled a few messy hairs, and then pulled a big iron box over, after all, Li Xuan should have collected a lot of energy cores for so long.

But just as he was thinking about how much energy he could save, he was surprised by the scene in front of him.

Li Xuan in the square pit was sitting leisurely in the corner of the iron cage, and when the old man came, he had already closed the entrance of the mechanical mouse, so now he had a rare chance to breathe.

The surrounding area was full of fragments of mechanical rat remnants, if he hadn't been forced to fight, Li Xuan really never thought that his combat power would be so strong.

"Where's my mechanical core?" The old man squinted, his eyes constantly searching the ruins.

"Find it yourself." Li Xuan raised his chin and snorted coldly. As long as the old man dares to come down, he dares to seize the opportunity to catch him!

The old man didn't answer with a sad face, and went back to rummage for a while, and the instrument he found out of nowhere was constantly probing in the ruins around Li Xuan.

Looking at the old man's expression of disbelief, it was clear that nothing had been found in the results of the detection.

Originally, with his years of experience in collecting energy cores, he could identify the energy cores in these mechanical wreckage at a glance. But at this moment, there was no golden light from the energy core inside, which made him a little out of shape.

"Little ghost, what tricks are you playing!"

Although the energy cores of the mechanical rat are not large, dozens are still a lot of them. At this moment, the other party is in an iron cage, how can he hide the energy core so secretly without a sound.

"I'm not playing tricks, I'm just killing mechanical rats as you say." Li Xuan pursed her lips and spread her hands, looking innocent. He wouldn't say that these energy cores were absorbed by himself, if he could, he still wanted to quietly wait until he had absorbed enough energy to break out of the cage.

However, the old man in front of him doesn't seem to give himself a chance.

"Really?" The old man snorted coldly, used the machine to suck up all the mechanical remains in the iron cage, turned around and turned on the switch again, and within a moment, mechanical rats appeared on all four walls.

Four mechanical rats, a clean square pit!

He wanted to see how the young man in front of him played any tricks in front of him in the situation in front of him.

Seeing this, Li Xuan couldn't help frowning, feeling the old man's difficulty. Although the combat power of the mechanical rat is low, Li Xuan's ability to automatically absorb energy cores cannot be fully controlled by him.

So several trembling down, although the victory. It's just that compared with the previous pinching death, Li Xuan at this moment decisively chose to smash the mechanical mouse in his hand to death. As long as the energy core is not allowed to appear in their own hands, there should be no clues.

"Ah, energy core!" Li Xuan raised his chin at the old man, looking at the energy cores scattered on the ground.

"Pick it up!" The old man stared at Li Xuan with his eyes, his small eyes glared at the boss, although Li Xuan tried his best to hide it, but the energy core was naturally dim compared to before, and naturally couldn't escape his eyes. Moreover, he had now found a pitch-black iron mass the size of an energy core in the metal ruins.

An unimaginable conjecture couldn't help but come to the old man's mind, that is, the young man in front of him had the ability to devour the energy of the energy core.

"It's still a baby!" The old man's eyes couldn't help but widen!

The tiny energy core turned into scrap metal the moment it touched Li Xuan's hand.

"Buzz ......"

With a burst of noisy machinery, Li Xuan was hung up by the old man in front of him.

Li Xuan firmly grasped the inner wall of the iron cage, and sank his heart, the secret of his body was discovered, and with the appearance of the other party's science madman, it seemed to be even more difficult to escape.

"What do you want to do?" Li Xuan frowned in a deep voice, looking at the current situation, he didn't know if Liu Changchun had found the exit of Shuangya College and found the rescuers.

"Don't worry about Xiaoyou, just satisfy your old curiosity!" The old man rubbed his hands excitedly, and after a few operations on the manipulator that he didn't know where, Li Xuan was fixed in the air by several iron chains and sent to the old man's forehead.

Li Xuan struggled to move, but found that the material of the chain seemed to be the same as the iron cage, and it was not so easy to get rid of.

The old man turned around and took out a large energy core from the high platform behind him, and leaned towards Li Xuan's body with his hands trembling slightly.

Li Xuan's heart tightened, and then pursed his mouth, if the other party kept doing this, he was confident that he could break free from this chain.

As a huge energy swept through, Li Xuan's whole human spirit was shocked, and the energy core in the old man's hand gradually turned into a pitch-black iron block little by little!

"It really absorbs!" The old man's mouth squirmed, and the folds on his face fluctuated with excited emotions.

"Bang Bang Bang ......"

"Interesting, interesting!"

The old man clapped his hands excitedly on the side, and at this moment, the other party was like a child who had gotten candy, but in Li Xuan's eyes, the other party was already an irrational madman.

The old man stared at Li Xuan's body tightly, as if admiring a perfect work of art.

"Draw ......"

Li Xuan frowned and watched as the other party slashed his arm with a sharp blade. It was rare for him not to resist, on the one hand, because it was useless to resist, and on the other hand, he was just like the old man, and he was full of curiosity about his body.

Blood continued to flow from the fresh wounds, but the flesh was slowly healing at a speed visible to the naked eye.

Compared with the old man's shock, Li Xuan didn't react much, and his self-healing ability has always been very strong. And the injury to the face of the national character before also proves everything. It seems to be due to the energy in the body that comes from the mechanical nucleus. Fighting with the mechanical rat in the iron cage will inevitably have some skin injuries, but they have miraculously healed in front of their eyes again and again.

"What's wrong with your body?" The old man's eyes were fiery.

"I'd like to ask you about that, too." Li Xuan pursed her lips, noncommittal.

The old man stared at Li Xuan's eyes, as if he wanted to see something, but he didn't get the answer he wanted, after all, Li Xuan really didn't know anything about his body.

"Then let's take a closer look." The old man rubbed his hands and stuffed an energy core into Li Xuan's hand. Quickly pick up the blade in your hand, if the healing speed is so fast, I don't know if I can be reborn! In order to figure out the doubts in his heart, he did not hesitate to cut off Li Xuan's arm.

"Ding......

Unsurprisingly, the crisp sound accompanied by the sharp blade flew out of his hand. Li Xuan frowned slightly, he could still bear this pain.

"Why are your bones so hard?" The old man's eyes widened and he stared straight at Li Xuan. While the wound had not healed, he pulled the wound and peeked inside, trying to find out.

Although this blow did not hurt the bones, Li Xuan was still very sensitive to the pain of the skin, and after a toss from the old man, Li Xuan was spasmed by the pain.

"Maniac!" Li Xuan gritted his teeth.

"Perverted!" The old man's eyes widened, and he looked at Li Xuan like a freak.

Before Li Xuan could curse, the old man picked up the knife in his hand, and a few put away the knife and slashed Li Xuan's body. Even his forehead was slashed mercilessly.

"You're not afraid to kill me with a knife!" Li Xuan twitched the corners of his mouth, letting the blood run on his face. With the energy core in his hands, the healing speed is not slow.

"Anyway, when you came in, I thought you were a dead man." The old man said righteously, "And don't you also know nothing about your own body? ”

After Li Xuan was completely healed, the old man retracted his excitement, slowly sat on the chair, stared at Li Xuan in front of him, and fell into deep thought.

"Who gave you this silver steel body!"

Li Xuan, who had just been able to catch his breath, raised his head suddenly, and looked at each other blankly, "What?" The Body of Silver Steel? ”

Silver steel is a unique product of the celestial sphere! The major colleges can only obtain it quantitatively!

"That's right, the body of silver steel, and the activity of silver steel in your body has been completely integrated into your bones, and in terms of the purity of silver steel, it is no less than the "silver steel seed". The old man took the energy core that had been turned into scrap iron in Li Xuan's hand and threw it out.

He didn't understand who had such great ability, whether it was the "Silver Steel Seed" or the act of implanting it in the human body, it was something he had never thought of. The only thing that could convince him was the young man in front of him, who came down from the celestial sphere!

"I don't understand what you're saying? What silver steel seeds? Li Xuan's mind was spinning rapidly, wanting to recall some useful information about his body.

"The silver steel seed is the purest silver steel, and it is the finest refinement of any metal! Indestructibility and high temperature resistance are already ordinary attributes, and the most terrifying thing is that he can develop and grow on his own! The Silver Steel distributed to each college is a derivative of the Silver Steel Seed. "The old man stared at Li Xuan's body, as if he wanted to see him through." Although the derivatives of Silver Steel are not as pure as Silver Steel Seeds, they are still more than enough to deal with mechanical beasts. ”

"It's mostly used to build warframes."

"And in your current situation, the silver steel must have been implanted in your body since you were very young, otherwise it would not have grown dependent on bones. But the growth of silver steel requires a lot of energy, and the average person can't afford it. ”

The old man frowned, he couldn't figure out how the silver steel body in Li Xuan's body was formed. Can it be to keep smashing energy cores?

"Could it really be my father?" Li Xuan's eyes widened suddenly, and his heart tightened!

According to the old man's words, there are not many people who have the opportunity to implant it in their own bodies. And his parents used to be students of Shuangya College, and they were later expelled, could it be that they wanted the silver steel in their bodies?

Li Xuan shook his head, his current thinking was a little confused.