In the clan where the Dragon King and Carl are chatting about Jianmu, the results of the detection of the branches of the Tree of Evolution have come out.

Carl read the test result report, and his eyes showed surprise: "Dragon King, this plant can indeed be used as a substitute for black gold. ”

"Is that okay?"

"Yes, although it is slightly less rigid than black gold, it has good ductility and compression resistance, and it is enough to make portals."

"So, portals can be built?"

Karl asked cautiously, "Dare to ask Your Excellency the Dragon King, is there a lot of this plant?" ”

"It's okay."

Karl was silent for a moment, and said in a sincere tone: "Your Excellency the Dragon King, no matter how many such plants there are, from my personal point of view, I would like to advise the Dragon King, it is best not to let other civilizations know that Dawei has this kind of material comparable to black gold, otherwise, this is likely to attract covetousness, even if it is the self-universe, it is actually not peaceful." ”

The dragon king glanced at Karl and said with a smile: "Well, don't worry, and in fact, the number of this plant is really not much, and after the portal is built, it is estimated that there will be no left." ”

Karl nodded and changed the subject: "What about the energy aspect?" The dragon king is ready to be propelled with black hole energy? ”

"Well, let's use black hole energy, it's more convenient to make a black hole."

"Okay, the dragon king prepares the materials, and then we go to another planet to make a portal."

The reason why I don't make a portal in Dawei is because the project of making a portal is huge, and the black hole will bring powerful radiation, and the dragon king is no problem, but ordinary people obviously can't withstand the radiation of the black hole, and it is much safer to make a portal in an alien world.

Carl came to Dawei this time, and also brought some engineering and scientific researchers, these people have complete technology to make portals, as long as the materials are enough, everything is not a problem.

Under the guidance of Carl and those engineering researchers, the dragon king first grabbed hundreds of barren planets, and then fused these planets together to form a super huge planet.

Roughly three times the size of the Sun, about fifteen times denser and about 213 times heavier than Earth, this megamassive planet will be the carrier of the portal.

It was the Dragon King who took the initiative to ask for this planet, because it was so fast, if Carl and these people were allowed to do it, it would take several years for this work alone, and the Dragon King didn't want to wait that long.

This planet was named the Gateway Star by the Dragon King, because in the future it would become a gateway between Dawei and the universe.

After getting the portal star ready, the dragon king took out some trunks of the Tree of Evolution, and then drove these trunks into the interior of the planet in a certain direction, focusing on the underground of the location where the portal will be built in the future.

Because the portal is quite heavy, the foundation must be laid, otherwise it will be hilarious if the portal collapses or does not go into the stones.

After the portal frame is built, dig out the stars below to build the portal's energy generator.

The next step is for the dragon king to create a black hole, which is captured by a large black hole trap and then sent into the energy generator, when the number of black holes is enough, the energy generator can generate enough energy to push the portal to operate.

In the whole process of production, the dragon king made considerable efforts, more than eighty percent of it was done by the dragon king himself, and the remaining twenty percent was completed by Carl and those engineering researchers.

The overall structure of this super-large portal is more than 100,000 meters high, about 30,000 meters wide, and its weight is about seventy-one times that of the earth.

After connecting the coordinates of the 121 Star Ring Portal, and then turning on the energy generator, the majestic energy began to appear, and the portal frame trembled slightly, and then stabilized, and finally, a silver-gray spatial vortex was formed in the middle of the portal.

"It worked." Carl breathed a sigh of relief, "With this portal, Dawei and the One-Two-One Star Ring are already unimpeded. ”

The Dragon King nodded happily.

It is worth mentioning that because this star ring portal is relatively huge, its tearing power is also very terrifying when teleporting, so the requirements for teleporting items are relatively high, and ordinary spaceships cannot pass through this portal at all.

If it is a direct teleportation creature, the physical requirements for the creature are also very high, probably only the strong above the Xinghai level can withstand this kind of power, and if it is below the Xinghai level, it is still exempt, and it will be torn apart by the power of space.

Building the portal is only the first step, and the next step is to build a defense system around the portal.

In fact, the structure of the portal is very stable and will not be damaged easily, but even so, the defense of the portal is the top priority of all civilizations, after all, there are still many weapons in the universe that can destroy the portal, and the role of the portal is too huge, it can be described as a battle, and now in the war of various civilizations in the universe, the first thing to destroy and protect is the portal.

Carl has prepared several sets of plans for the Dragon King, all of which are relatively mature defense systems, which have been verified countless times by the Lionheart Empire, although they dare not be said to be foolproof, but they are indeed very effective.

The Dragon King chose one of the most widely used defense systems, called the Multi-Satellite Arch Defense System.

This multi-satellite arch defense system is to set up some satellite planets around the portal star, and the arch guard is around the portal star, so that once there is an invasion of foreign enemies, it is necessary to pass through the satellite planet first, so as to buy time to protect the security of the portal.

For this reason, the dragon king imitated the structure of the solar system, made eight satellite planets around the portal star, let these eight satellite planets rotate clockwise around the portal star, and set up a military base on these eight satellite planets, and sent troops to station.

But this is not enough, in addition to the eight satellite planets, the Dragon King is not far away, capturing hundreds of planets from distant star domains, making them the secondary satellite planets of the portal star, these secondary satellite planets do not need to set up military bases, but they have to arrange some unmanned detection equipment and control them with intelligent systems.

Finally, the star fields around the portal star are also planted with stealth mines, and every few days or weeks, the location of these stealth mines will change, in short, everything is to protect the safety of the portal and not be destroyed by people in the first place.

This is a huge project, although the time only took about a year, but the financial and material resources consumed, if calculated in cosmic coins, are as high as tens of trillions, if it is not for the Dragon King to have the Tree of Evolution, it is really unaffordable.