(To borrow a famous saying, if you have a ticket in your hand, don't panic in your heart, don't panic when you ask for a ticket!) ）

……

After the successful death, Lin Fei temporarily hid in the basement of the Zetarian, originally Lin Fei was quite interested in the technique of positive and negative energy impacting the portal, and it was also because he didn't have time before, but now he has enough time to study it.

Previously, the third task chain was considered to be completed, and the fourth mission chain would not be opened until Loki was escorted to the S.H.I.E.L.D. mothership.

Now, Lin Fei is studying the machine in the basement.

If it was Lin Fei a few hours ago, he might not know much about all kinds of machines connected by cable equipment, but now, Lin Fei, who has been thinking about it for a while, understands a lot.

It has to be said that Douglas and the Zetarians are still somewhat capable, and this device that generates portals by the collision of positive and negative energies is quite complex and sophisticated, and it is impossible to think of creating such a thing without a genius brain and profound knowledge.

Lin Fei had obtained the previous technical manual of the Zetarians, so he already knew the principle of this machine.

This machine requires a powerful energy source, in addition, there is a device for compressing energy, and the two positive and negative energy emitters are the core of the whole device, and the console next to it can set the cosmic coordinates.

Regarding the cosmic coordinates, Lin Fei studied it carefully. Obviously, this is a technique similar to a 'star map', and the Zetarians present the star map they have in four dimensions. Every point in the universe can be called a four-dimensional coordinate, and as long as you master two four-dimensional coordinate points. A portal can be opened between two loci.

There is a lot of technology involved, and in simple terms, the whole universe can be seen as a huge building, and this building has many rooms, and each room is numbered, so you can think of this number as a four-dimensional coordinate.

When the time comes, set the coordinates and use the collision of positive and negative energy. You can directly open the passage portal in one of the two rooms.

This huge device in the basement already makes this possible, but there are still two very important flaws, one of which is the source of the 'energy'. And the best source of energy is naturally the 'Cosmic Rubik's Cube', but this thing is now in Loki's hands.

The second thing missing is the 'stabilizer', Lin Fei was stunned, and secretly said that the so-called stabilizer is not the metal 'iridium', if this is the case, Alice has it in her hand.

Thinking of this, Lin Fei got in touch with Alice, and there was nothing going on on her side. So Lin Fei dispersed her remotely first. Then he summoned her.

Seeing Alice, Lin Fei asked her for the metal 'iridium'.

This metal 'iridium', which is used as a stabilizer, is found from meteorites and is different from normal 'iridium'. Lin Fei saw it. It's an irregular piece of metal that is the size of a fist and has a lot of weight.

"Special metals. Can be used as a stabilizer of dark energy, weighs 2.5 kg, is a valuable item that can be taken out of the quest world, and can be exchanged for 200 hours or 800 team points! ”

Lin Fei secretly said that he had already solved a problem now, and the previous Zetari spies should have been unable to manufacture the portal because the energy could not be stably output. Now with the metal 'iridium', this problem is no longer a problem.

The rest is energy. And Lin Fei knew that most of the machines here were for continuous energy storage and compression of energy, and through the continuous conversion of electrical energy, the energy to open the portal could be met every 10 hours, of course, this portal was at most two meters in diameter, and the time would not be very long.

In other words, Lin Fei could now use this machine to teleport wherever he wanted to go. If this is the case, then it will be much easier to complete the task next, at least Lin Fei can reach any part of the world in an instant. …,

That's quite an advantage.

Thinking of this, Lin Fei found a blank piece of paper and began to calculate the coordinates of various regions of the world according to the formula of how to calculate four-dimensional coordinates that the Zetarians had confessed before.

The process was not easy, but Lin Fei enjoyed it. And Alice on the side leaned on Lin Fei with great interest at first, watching Lin Fei list formulas on paper with a pen, and from time to time she also used her plump breasts to stick to Lin Fei, and then blew in his ear, or used her hair to itch Lin Fei, but Lin Fei was unmoved by all this. Obviously, Lin Fei has now entered a state, and because of his iron will, this state of persistence and concentration is not something that can be broken by external forces at all.

Alice couldn't understand what Lin Fei was calculating, but she was bored, but she pouted, and then summoned the metal alien queen and started playing with this terrifying summon.

The Metal Alien Queen is like a toy for Alice at the moment, allowing her to play with its tail.

Lin Fei, on the other hand, was completely in a state of work, and soon, his paper was full of formulas, and Lin Fei had to use another piece of paper to calculate, and at the same time listed a table on the side.

The table is full of place names, or latitude and longitude, and next to each place name and latitude and longitude, Lin Fei is marked with a four-dimensional coordinate.

This is the result of Lin Fei's calculation, as long as there are four-dimensional coordinates of these locations, Lin Fei can start this machine and open a portal to any location for himself at that time.

After calculating these results, Lin Fei planned to give it a try.

Naturally, Lin Fei would not open a real portal with a diameter of 2 meters, after all, it would consume too much energy, Lin Fei planned to only open a portal of about ten centimeters, so that he could test whether the portal could really open and maintain a balanced state while consuming a small amount of energy.

After listing a long four-dimensional coordinates, Lin Fei began to cut off a small piece of metal 'iridium' and place it into the 'dark' energy, that is, the negative energy emitter.

That way, everything is ready.

Lin Fei thought for a while, entered a four-dimensional coordinate on the coordinate instrument, and then pressed the start button.

Suddenly, the two energy emitters began to charge, and then two thin streams of energy shot out, and then collided together, and soon, the energy center of the impact began to slowly appear an energy mirror of about ten centimeters.

Lin Fei cut off the supply of energy, and the mirror floated in mid-air like a handicraft.

The vision just now made Alice and the metal alien queen also stunned, and Alice spread her little wings and flew over, looking at the small portal curiously.

Through the portal, you can see a scene of busy traffic.

"What is this?" Alice tried to touch it with her hands, but her fingers passed through the portal with ease.

And in the sky above a certain city in a country in the east, in a circle of light the size of a round mirror, a white and tender finger stretched out.

"This is the portal!" Lin Fei also walked over and took a look, the energy he had just used could maintain the existence of this small portal for 1 minute, and through this small portal, Lin Fei also saw the scene on the other side.

"Very good, it looks like this is really successful, the metal 'iridium' can really maintain the conservation and stability of the energy of the portal!" Lin Fei looked at this portal, and his heart was also full of surprises.

In this way, I can be regarded as having a very powerful means of transportation in my hands, and it can be said that nothing can compare to the convenience of this portal.

Of course, this portal also has various problems, it is huge, and it can only be used as the origin to open the portal, etc., but even so, if he encounters a task that needs to rush to a certain place immediately, Lin Fei can immediately rush through the portal. ..., even Lin Fei thought of the usefulness of this kind of small portal, just imagine, if you attack through this portal with a long-range weapon, you can kill the enemy thousands of miles away, and it is still defenseless.

The only problem is that if you want to open the portal at a specific point, you must get the 'four-dimensional coordinates' of that point, fortunately, Lin Fei has also mastered the formula for calculating the four-dimensional coordinates, and in order to accurately locate and open the portal, you only need to calculate the four-dimensional coordinates.

As for the various problems of the portal, it is not impossible to find a solution in the future.

And at this time, Lin Fei heard a prompt.

"Loki has been escorted to the S.H.I.E.L.D. flying carrier, and now the fourth mission chain begins: the evil clone, the Asgardian guest!"

"Quest chain content: Loki's capture is just the beginning of an evil plan, he has already planted four of his doppelgängers on the S.H.I.E.L.D. flying carrier, and he intends to use these doppelgängers to completely defeat the Avengers and destroy the flying carrier. In addition, as a member of the Asgardian clan, Loki owns some of the old Divine Palace, and these people have also traveled from the Divine Realm to participate in their master's evil plans. The Contractor needs to divide their forces into two ways, one to find and defeat Loki's clone, and at the same time to stop and dismantle Asgard's evil reinforcements. ”

"Fourth Quest Chain Restrictions: The character who must not be suspected of playing by the plot characters must find and kill Loki's clone hiding on the Flying Carrier within ten hours, and must kill all three evil reinforcements from Asgard within ten hours. Those who violate the above three restrictions will be wiped out! ”

"Loki Clone Reference Power: 700"

"Asgardian Evil Reinforcements Reference Combat Power: Eight-legged Mahagen 1200 Combat Power, Amethyst Arubellisi 1500 Combat Power, Sirius Bot 1700 Combat Power."

Lin Fei was stunned when he saw this series of prompts, no matter how you look at this fourth task chain, it is much more difficult than the first three task chains. Soon, Li Chunan and the fat man also immediately used the communicator to get in touch with Lin Fei.

The fat man and the bun called it too perverted to increase the difficulty of the task chain, and it was difficult to kill Loki's three doppelgangers under the nose of S.H.I.E.L.D.