In the next few days, Chen Chen stayed by Rosalind and her son's side, taking care of them with peace of mind, and at the same time, he could be regarded as spending more time with his family, because he knew that such a peaceful day would not last long.

With the passage of time, the energy contained in Kaydarin's Heart has also been further absorbed, and the battle value has exceeded to nine million, which is only one step away from the 10 million mark.

But this step is not so easy to achieve.

The combat value increases, the more difficult it becomes, at the beginning, it feels like a lot to increase dozens of points and hundreds of points, and then every time you upgrade a level, the values required are thousands, which is completely different from before.

To be able to get to this point, it is also relying on the short-release permission, going to different planes to obtain extremely powerful power sources, plus obtaining the heart of Kataline, in order to quickly improve to this level, and in the case of having absorbed the heart of Kataline, if you can't get more power sources, then the subsequent promotion will not be so easy.

At present, although the heart of Kaydarin has not been fully absorbed, and the remaining energy is enough to increase his combat value by millions, it will be a long-lasting process, and it will not be achieved in ten days and half a month.

Judging from all kinds of signs, the Netherworld King's combat value may have exceeded the tens of millions level, and the comparison of strength is originally one or the other, and if he can't improve quickly, he will be left behind.

Thinking of this, Chen Chen couldn't settle down.

It seems that we have to find other ways to improve.

But now that all the ways that can be used in my hand have been used, and I have also been to several powerful planes, I thought about it carefully, but I found that there was nothing that could improve my strength.

In the end, he could only return to the Kaedarin Crystal.

This hedron contains a powerful quantum force, and by absorbing the quantum force, you can continuously enhance your mental power and willpower, which can be used to increase your combat value, which was previously relied on to improve.

Now, although the Heart of Kaytarin has been absorbed, Uranus still has an abundance of Kaydarin Crystals, and if they are absorbed, the combat value can also increase rapidly, which is already the best way to think of at the moment.

In addition, after such a long time, Renard and Kelly Gan's side should have made progress, and the Uranus fortress system should be almost designed, and it also needs to be improved on the ground.

Together, the two purposes must go to Uranus.

After making up his mind, Chen Chen told Rosalind and both parents about his idea.

In this regard, the crowd did not stand in the way.

They understand the responsibility that Chen Chen shoulders, and now the rise and fall of the entire earth human race is all on him, in the final analysis, he is no longer an ordinary person, not just a father, a husband, a son, but also the hope of mankind.

Although he was reluctant to give up, he couldn't be held back.

In such a complicated mood, full of affection and advice, the family waved goodbye and watched Chen Chen board the cockpit of the titanium fighter and fly towards the distant starry sky.

With the help of hyperspace jumping, Chen Chen soon came to the surface of Uranus.

At this time, Uranus already had the rudiments of a fortress system, with a stealthy observer monitoring the entire airspace in the shadows on the periphery of its orbit, and a spherical intelligent machine cruising in an invisible state.

And on the surface of Uranus, a thousand furious and a thousand deep cold are scattered throughout the base, and hundreds of automatic mining equipment are hard at work to gather the collected Kaedarin crystals.

Under the witch's monitoring and remote sensing, the basic system has been formed, once the patrolling observer and spherical intelligence detect the abnormality, they will immediately come forward to detect, and at the same time, all the rage and deep cold will be activated, facing all possible enemies.

However, this is only to form a perimeter base, and there is still a lot to prepare for it to truly become a fortress.

After landing in the plane, Chen Chen immediately entered the dimensional prison and went to the heavy factory to find Renard and Kelly Gan.

At this time, the two of them were assembling a large instrument.

There was a prototype base at the bottom of this instrument, and above it stood a tower-like cylindrical object, the whole body was smooth and clean, and it looked like a giant cannon, but Chen Chen knew that this was definitely not a giant cannon.

With the cleverness of Renard and Kelly Gan, they would not have made such a weapon of the live target class, which must have been another important piece of equipment.

Chen Chen has noticed that there is more than one such equipment, and four have been prepared on the spot.

"This is a large observation device, installed on Uranus, that can observe the starry sky at the edge of the solar system." Renard explained in a timely manner to dispel Chen Chen's doubts: "The four stations are distributed in four different positions, and they follow Uranus to operate together, which can ensure all-weather observation without dead ends, which constitutes the first step of early warning!" ”

"At the same time, the most important point." After a pause, Renard added: "Human beings have not set foot in the universe for a long time, and even the star navigation map of the solar system has not been completely mapped, this device will also follow the rotation of Uranus, and the star navigation map on different axes will be mapped and mapped, and according to the rotation time of Uranus, it will take eighty-two years to map and map the entire solar system!" ”

"It's been a long time......" Hearing this time, Chen Chen couldn't help but sigh lightly.

"The universe is very vast, and the exploration of the waterway is not an overnight thing." Kelly Gan said with a smile on the side: "You know, there are so many civilizations in the galaxy, but they have not successfully mapped the star navigation map of the solar system for thousands of years, otherwise, how can the earth have a chance to develop safely in this unknown corner for thousands of years?" ”

"Well, that's for later." Chen Chen froze his mind, and then asked the question he was most concerned about: "How is the entire defense system?" ”

"This is where we continue with the topic above." Renard stretched out his hand and pulled out a display window to show the general composition of the solar system: "Because the mapping of the star navigation map is not something that can be completed overnight, in fact, there is only this one of the currently known shipping lanes!" ”

As he spoke, Renard marked a red line on the map: "That is, the route that ancient humans took when they left and then returned, and it is also the route you have been taking, which is the only way for all civilizations in the galaxy to enter the solar system!" ”

"Except for this channel, the rest of the range is unknown." Renard spread his hand and showed a smile: "Therefore, no one dares to go through these areas until further exploration, and in a short period of time, the portal of the solar system is just this one, one road!" ”

"According to the time of Uranus's orbit, Uranus will not deviate too far from the axis of this channel within a year or two." Kelly Gan took over the conversation: "Therefore, the fortress of Uranus you proposed is actually established in a short period of time, and in the last year or two, Uranus can be used as a gate to defend this route, as for a year or two later, Uranus will deviate from the axis of the course with its revolution, that is another story." ”

"Actually, the most important thing is the last year or two." Chen Chen naturally understood the truth in this, and nodded at the moment: "At present, the main threat is the Babylon Empire and the Star Alliance, within a year, I should have cleared this hidden danger." ”

"Okay, after that, let's talk about the fortress system." Renard stretched out his hand and dragged the display window, replacing it with a topographic map of Uranus: "The general fortress is to rebuild the entire planet, and even install super weapons, but Uranus is constantly running, and it will soon be separated from the axis of the channel, plus it is too large, and the resources consumed to build the fortress are too large, we can't afford it, and there is no need for that." ”

"To block this channel, a fixed fortress system had to be built manually. According to our design, a large thruster was used to move a giant meteorite or even an asteroid directly to the axis of the channel, and built into a base, equipped with various weapons on the outside, and a warship port and headquarters on the inside, so as to form a defense system. ”

"Such an immovable fortress is indeed the only passage blocked by the permanent surname." Chen Chen pondered for a moment, and then asked, "But, what if other waterways are discovered in the future?" ”

"Within eighty-two years, the human beings on earth will be able to obtain a complete chart of the solar system, and in that way, all the shipping lanes that exist will be discovered." Renard replied without hesitation: "After that, on all the waterways, build such fortresses in the same way, if there are several waterways, build a few, and block them all!" ”

"Eighty-two years, that's a short time!" Renard sneered, and his eyes flashed: "I don't believe that any other civilization can discover other shipping lanes in such a short time." ”

"Well, that's a long-term thing." After thinking about it, Chen Chen immediately calmed down: "Let go of the future things first, I will just leave the fortress plan to the human race, or let's talk about the present, what about the Uranus Fortress?" ”

"Then Uranus!" Renard dragged the floating window again and enlarged the topographic map of Uranus: "Twenty-seven satellites constitute the first line of defense, and an observer and intelligent machine launch base are built on it, and the entire vast star field around Uranus is patrolled by observers and intelligent machines, forming the outermost cordon. ”

"Then, there are a lot of ice crevasses on the surface of Uranus, which go straight to the inner rock formations!" Renard zoomed in on one of the ice crevices to show the inside: "The Atlanteans have built many facilities in these ice crevices, and they have transformed them into cold bases, and countless cold bases will rely on these bases to destroy all invading enemies. ”

"If the enemy army is really strong and withstands the attack of the deep cold, but it is impossible for them to bypass Uranus, because this thorn is firmly nailed to their throat, they must capture Uranus, and at this time, they can only choose to land." A sneer appeared on the corner of Renard's mouth: "And once they land, the fury is waiting for them on the ground." ”

"The whole of Uranus constitutes a meat grinder, and the enemy who will attack it will be here, so as to keep the battlefield away from the earth." Chen Chen had fully understood, and made a decision at the moment: "Then, the Uranus defense line will be named the Iron Curtain!" (To be continued.) )