Underground of Yuanyang City, on the second floor of the East Federal Energy Control Room, in front of the door of the maintenance passage of the Energy Transportation Room.

Not long after Ling Hu Rong left, the door in front of Gu Shuang was opened, and then a long circular passage was revealed, and at the same time, the sound of the radio in the corridor sounded, and Ling Hu Rong's crisp voice came.

"Gu Shuang, I am now in the energy central control room on the second floor, and I have already opened the external door of the energy transportation room for you, but there are still ninety-nine protective doors inside, a total of one hundred areas, and you will need to open them manually at that time, at the same time, I still want to remind you again, it is very dangerous inside, are you sure it will be fine?"

"Don't worry!"

Gu Shuang smiled and waved his hand, then raised his feet and stepped into the energy transportation room, entering the first level area of the energy transportation room, as Gu Shuang entered, the door automatically closed again, and it would only be reopened when Gu Shuang returned.

The central control room on the second floor

At this moment, Ling Hurong was sitting in front of the monitoring desk with a hint of worry, surrounded by some busy staff.

A middle-aged man with a nameplate engraved with the three Chinese characters of 'Cheng Hanqiao', wearing a military uniform, a Chinese character face, and a resolute face saw that in the external surveillance screen of the energy transportation room, Gu Shuang really did not wear any protective clothing, so he walked into the energy transportation room, and couldn't help but ask Linghu Rong: "Linghu City Lord, is he really fine?" You must know that the energy transportation room gathers a huge amount of energy extracted from the ground, very violent, although after layers of graded reduction, the nature of the energy has been much weaker, but it is not something that people can bear, let alone people, even diamond people will be decomposed in a second, even if he is powerful, he can't resist the violent energy, right? ”

Cheng Hanqiao had heard of Gu Shuang's deeds, after all, when Gu Shuang came back five days ago, it caused a sensation in the whole Federation, he knew that Gu Shuang had killed SSS-level mutant creatures, and his strength was extraordinary, and he couldn't look at it from the eyes of ordinary people, but even if he knew, he hadn't seen it with his own eyes, so he still had doubts.

Hearing this, Ling Hurong hugged her arms and shook her head, and said, "Director Cheng, I'm also worried..."

When the words fell, Ling Hurong said again: "But I believe in him!" ”

After finishing speaking, Ling Hurong meticulously guarded the general monitoring platform, like a wangfu stone, waiting for the moment when Gu Shuang came out, Cheng Hanqiao saw Ling Hurong's serious expression, he was stunned, and wanted to say something, but in the end he swallowed the words in his heart.

On the other side, Gu Shuang had already stepped into the first-level area of the energy transportation room at this time, and after Gu Shuang walked around the entire energy transportation room through a circular passage, Gu Shuang finally came to the energy transportation room

In front of the second protective door.

"There is one outer gate and ninety-nine protective doors inside, is it so terrible?"

Gu Shuang felt a little puzzled, his thoughts were scattered, he looked up at the ceiling, through the surface decoration of the ceiling, Gu Shuang saw the dense energy transportation pipes, Gu Shuang looked down at his feet, through the floor decoration, Gu Shuang also saw the dense energy transportation pipelines.

Gu Shuang then looked around, and the surroundings were the same, the inside of the wall was full of dense energy transportation pipelines.

The pipes are very thick and lead in all directions towards the central area of the energy transport room.

"Looks like we're going to the center..."

Nodding, Gu Shuang then looked at the protective door in front of him, on the side of the door, Gu Shuang found a red manual switch, seeing this, Gu Shuang took a deep breath, and then walked to the red manual switch, opened the protective cover of the switch, and pulled it with one hand!

"Whew! Boom! ”

The huge mechanical hanging door slowly rose, and the moment the mechanical hanging door opened, Gu Shuang's heart was shocked, and he felt that the mass core had obtained one millionth of energy from the air at this moment.

"Perhaps, you don't need to go into the innermost part at all, it's enough to stay outside and suck..."

Gu Shuang was a little surprised, he underestimated the energy contained in the energy transportation room, you must know that the mass core can hold about one million tons of energy released when a nuclear bomb explodes, one millionth of it, but it is equivalent to one ton of energy, what a terrible number, this is only the first protective door, there are ninety-eight behind, how rich is the energy in the back? No wonder Linghu told himself again and again, saying that it was very dangerous inside.

After pondering for a while, Gu Shuang calmed down, and then stepped into the second-level area of the energy transportation room.

As Gu Shuang entered, the second protective door automatically fell, but Gu Shuang was not afraid, because it could also be opened from the inside.

At this moment, Gu Shuang was looking around, looking at the second-level area of the energy transportation room, the second-level area was still a circular corridor, which was no different from the first-level area outside, but Gu Shuang keenly found that there were more things here than the outer area, and some things like horns were inserted into the transportation pipes, like a range hood, and they were smoking the energy contained in the second-level area.

At the same time, Gu Shuang found that the oxygen content here was a little low, almost equal to nothing, if it weren't for the fact that he had a quality core, the quality core had absorbed an oxygen manufacturing machine, turned into a silver liquid and hid it in the mass core, providing oxygen for Gu Shuang, it was estimated that Gu Shuang would retreat in embarrassment as soon as he walked into the second-level area, and go back to wear a set of protective clothing and come over.

"It seems that these horn-like things are pumping the energy from here and transporting it in all directions..."

Gu Shuang looked at it for a while and then withdrew his gaze, at this moment he was feeling the speed at which the mass core absorbed energy.

"Well, one ton per second, if you want to completely replenish your energy, it will take a million seconds, which is equivalent to about sixteen thousand six hundred and sixty-seven minutes, which is about two hundred and seventy hours, well, the time is still a bit long, I need to go deeper!"

After a brief calculation of the time it would take for the mass core to be fully replenished in the second-level area, Gu Shuang clenched his fists and prepared to go to the third-level area of the energy transportation room along the circular corridor.

Before coming to the gate of the third-level area, Gu Shuang opened the protective door to the third-level area of the energy transportation room.

The third-level area is still the same as the first and second floors, it is also a circular corridor, after walking around, Gu Shuang found that the third-level area is a little smaller, and at the same time, Gu Shuang also found that the materials of the walls around him, the materials of the pipes, and the materials of the energy-extracting devices seem to be a little better.

"Is the mass core suction efficiency two tons per second? It's still a bit slow, and you need to go deeper..."

After Gu Shuang felt the speed at which the mass core absorbed energy in the third-level area, he didn't stay long before coming to the fourth-level area.

The fourth-level area of the energy transportation room is still a circular corridor, the corridor is a little smaller than the third-level area, and at the same time, the materials of various devices around it are a little better than the third-level area.

"Three percent, still slow, and then enter!"

Gu Shuang walked all the way forward and walked to the eleventh level area in one breath.

As soon as he stepped into the eleventh level area, Gu Shuang felt that there was something obviously different around him, he could use his naked eyes to see the glimmering energy in the air, and at the same time, he could feel the violent aura of the surrounding energy, like a hurricane, uncontrollable.

What's even more terrifying is that Gu Shuang can feel that these energies have affected his body, like thousands of small needles, stabbing his whole body with pain, you know, Gu Shuangke is protected by a black substance, but now these energies can slightly break through his defenses.

"Ten tons per second, it takes an average of twenty-seven hours, well, it is estimated that when you go to the twenty-first area, the energy absorption efficiency will reach about twenty tons per second, and when you reach the end, it is estimated that it can reach one hundred tons per second!"

Gu Shuang thought for a while, then continued to move forward, without stopping all the way, and directly entered the twenty-first level area of the energy transportation room, sure enough, Gu Shuang's guess was correct, as soon as he arrived, the absorption efficiency of the mass core reached twenty tons per second!

"Does the absorption efficiency increase by a ton for each layer advanced?" Gu Shuang thought in his heart, at present, time is short, he still has five days, he has to face the steel clan alone, it is best to save a little time here.

Thinking of this, Gu Shuang no longer hesitated, and advanced all the way, until he reached the forty-sixth level area, and Gu Shuang stopped.

Walking here, it was not that Gu Shuang didn't want to continue walking, but that Gu Shuang felt that the energy around him was too violent, and if he went deeper, he would be in danger.

"I can't imagine that this small energy transportation room is so terrifying!"

Gu Shuang was a little shocked, and completely put away his contempt.

At this moment, Gu Shuang was standing in the forty-sixth level area, looking at the surrounding energy, his heart was vigilant, in the midst of this violent energy, his body seemed to be constantly suffering from bullet shooting, if it wasn't for the black matter to help him avoid most of the damage, Gu Shuang estimated that even if he changed into a tank, he would not be able to resist the violent energy around him!

"The absorption efficiency is forty-five tons per second, which is about six hours, and here it is! Can't go in again! ”

Gu Shuang felt the absorption efficiency of the mass core, and when he arrived here, the absorption efficiency of the mass core was already terrifyingly high, and it only took six hours for about one million tons of energy to be completely replenished.

Having made up his mind, Gu Shuang sat down cross-legged like those immortal cultivators in the novel, began to let go of the mass core, let go of his belly, and sucked the energy around him.

Right now, if there are outsiders by Gu Shuang's side, they will find a terrifying scene, only to see that the rich energy in the air is like a ribbon, tied to the palm of Gu Shuang's hand, and the mass core of Gu Shuang's palm is sucking into it.

At the same time, bursts of energy rippled out from Gu Shuang's mass core, washing Gu Shuang's body.

Gu Shuang sat cross-legged for a while, and then he felt that something was wrong, and he found that his physique seemed to be constantly improving.

"Does the original mass core still have this purpose?"

Gu Shuang's thinking wave frequency let go, and saw a strange scene, only to see that under the black substance, one electric current after another, constantly cleansing his body, thinking wave frequency dispersed, Gu Shuang found that his cell structure became more compact and stronger under the washing of this current, almost every second, Gu Shuang could feel that he was a little stronger.

This current, when Gu Shuang just got the mass core, he noticed it, the current was very small at that time, just like the current emitted when a lighter was ignited, it was very weak, but now it is different, these currents have become a little coarse, strengthening his physique, so that all kinds of impurities in his body are discharged, making the cells stronger, as if they are evolving, very magical and mysterious.

"It seems that I need to come to this place more often in the future!"

Gu Shuang's eyes flashed with a fine light, when he was in the test site, he felt that he needed to exercise his ontological strength more, after all, the quality core was just a foreign object, the main function was a weapon, and the power of the black substance was almost constant, but at that time, Gu Shuang couldn't find a good way, after all, he was not a true immortal cultivator, and he didn't know how to cultivate, but at this moment Gu Shuang found a way out!