Visitors from other worlds are rightfully treated with the highest courtesy from the metropolis.

Even in today's time of scarce resources, they still held a high-profile welcome dinner, which was not about vanity or anything, but represented an attitude.

I don't know if it's a coincidence, the human civilizations of the two worlds overlap quite highly, and the dinner party was held in a form similar to a dance buffet, and Sirona and her sisters blended into it very smoothly, and at the moment they were wearing simultaneous interpreters to communicate with the people of the Metropolitan Defense.

People from both worlds are full of curiosity about everything about each other, and the atmosphere of the banquet is joyful and harmonious.

Theonilla and Xia Chen, who were sitting on the main seat, were also talking happily at this moment.

"In the more than a month since you left, every day I have lived is like a year, but fortunately you came back in time."

Theonilla put his posture very low, there was no way, most of the promises Xia Chen had promised him before had been fulfilled, and he hugged this big thick leg, so naturally he couldn't let go.

It is no exaggeration to say that if there is a 1% chance that the people of the metropolis will save this world, it is all because of the appearance of this visitor from another world.

Xia Chen smiled slightly, "You are serious, since we have an agreement to help each other, then these are what I should do." ”

said polite words, but Xia Chen's heart was a little heavy, and he was a little hesitant to tell him the cruel truth about this world that was about to collapse.

In fact, he considered a few alternatives before returning to the ultimate world.

For example, let all Metropolises relocate to Earth through space-hopping technology.

When this thought first arises, Xia Chen himself was startled, and at that moment he thought of many science fiction works he had read, such as the Three-Body Problem, Supporting God and the like.

Can a civilization with a higher level of scientific and technological knowledge coexist peacefully with the "natives"?

To study the answer to this question in detail, it must be a specific analysis of specific problems, such as what is the moral standard of this civilization, and what is the scale and degree of threat.

But even if there was only a one percent chance of the worst happening, Xia Chen had to extinguish this dangerous thought.

Even if he could find countless reasons for himself—the population of the metropolis was only about 200,000, and it didn't pose a threat if it didn't have many resources; We have great elven powers; We can imprison them on a small island.

But countless reasons are not as good as one truth, if it is not my race, its heart will be different.

So Xia Chen couldn't come up with this plan, and he didn't even want to hear any temptation related to this plan from Theonira's mouth.

For him, the optimal solution was for the Metropolises to defeat the Dark Matter and banish it into nothingness, and then they saved Ultimate Necrozma, and their world.

A happy ending for everyone.

But the possibility was so small that he couldn't imagine how to do it, and the dark substance committed suicide by himself?

Brain pain.

…………

Thousands of thoughts only existed for a moment in Xia Chen's mind, which could think at a super high speed, and in the next second, he adjusted his mentality, raised his wine glass and clinked glasses with Theonilla, who toasted him.

Taking a sip of the light red unknown wine, Theonilla said with some sorrow: "To be honest, during the time you left, there were two more waves of strange beasts, fortunately, they were only blue and purple levels, and we barely coped with it, but the frequency was too high. ”

He added: "It's hard to come twice a year with the usual tide of strange beasts. ”

Xia Chen was silent, since he learned that it was dark matter that was at work in this world, he had figured out many things.

For example, it is not a coincidence that the tide of strange beasts occurred as soon as he arrived in the metropolis, and the disaster was indeed brought by himself, to be precise, the breath of his elves.

Dark matter has no intelligence, only the will instinct to destroy the world, and when it senses several powerful energy breaths that suddenly appear in this world, it has the instinctive idea of "destroying it", and it is naturally the ultimate Necrozma and other elves under his control who carry it out.

As for why it wasn't Necrozma himself who shot directly, maybe it didn't feel like it needed for the time being? Or did they not do anything to try to break its rule?

Xia Chen felt that the latter was more likely, after all, although it was true that Loton and Deochisis were inferior to the ultimate Necrozma, their combined combat power should not be underestimated.

And after he left, why did the two waves of strange beasts that the metropolis encountered happen?

Could it be that the advent of space-jumping technology has aroused the instinctive vigilance of dark matter?

It's not impossible, after all, it's one of the few variables in a world that has sunk and fallen.

However, it still did not attract the ultimate Necrozma, indicating that in the consciousness of the dark matter, its threat level may not be as high as that of Xia Chen's elves.

Thinking about this matter, Xia Chen comforted: "Don't worry, if it's just a tide of blue or purple level beasts, as long as you cultivate the elves well, you can solve it independently in the future." ”

Theonilla, who had seen the horror of Xia Chen's elven power, nodded thoughtfully, "I understand, and I am also looking forward to this day. ”

Xia Chen took the opportunity to say: "Because the elf eggs can't be brought over with poke balls, so this time they are all pregnant female elves, and after they give birth to elf eggs, they need to rest and observe by the way, such as whether the black fog will erode these elves and the like."

The black fog is the embodiment of the control of the spiritual pollution of the dark matter, and the stronger the strength, the more polluted it is, so the most sick is the ultimate Necrozma, and the human race is not affected at all.

The spirits of the earth did not seem to be eroded by the black mist, which could be seen from Xia Chen's experience in the Ultimate Beast in the previous month.

Whether it is the legendary level of the old Leton Deochisis, or the champion of the Heavenly King-level Senbu Sanado, they are all like this.

The same is true of the elves of Sirona who came with them this time, and the strongest of them, Creselia and Sidoran, are very san.

However, the observation experiment that should be done still needs to be done, and the standard for judging whether or not it will be eroded by the black fog is whether it is born in the ultimate world.

…………

Thinking of this, Xia Chen said again: "By the way, this time we will come here, we will get some more glorious stones, this thing is the only weakness of the black fog at present, and its importance may be stronger than we imagined." ”

Theonilla nodded and said, "Of course, you don't need to say that we also have this idea, but the Valley of Edgeworth is very dangerous, and I'm afraid you need to lead the team. Rest assured, mining and carrying is left to us, and we're the best at it. ”

Xia Chen responded: "Of course, this is also an important reason why I came back this time." ”

Theonilla smiled happily, "Then I wish us all the best in advance." ”

After chatting about the mining of glorious stones, the two talked about the space jumping machine, after more than a month of experiments and improvements, the safety performance of the machine has been further guaranteed.

Next, you will be able to transfer to Alola in both directions.

Xia Chen was also very happy, although he could also travel through time and space with the help of the power of the Paper Edgeworth, every time he came to the ultimate world, he always dropped randomly, and he was thousands of kilometers away from the metropolis, which was really inconvenient.

Once this technology has been mastered, there is no need to worry about this situation again.

After the dinner, the Metropolitan Defense came to the residence with guests from Earth.

Xia Chen still lived in the old place, and the others were also arranged in other rooms on the same floor.

During the two-day journey, everyone was more or less tired, maybe only Xia Chen and Jiadeliya, two people with superpowers, didn't feel anything, so everyone didn't have the heart to chat, and went back to their rooms to rest.

The "mansion" of less than fifty square meters was a little overcrowded after Xia Chen released the elves to rest, but it was quite lively to live occasionally.

Xia Chen looked up at the Vulcan Moth that had gathered its wings and pulled it on the ceiling, and beckoned to it.

The big fluttering moth tilted its head and obediently responded to Xia Chen's call and flew down.

"There's something I want to ask you."

Xia Chen said: "Because you seem to know a lot about the ultimate world, I want to ask you if you know one. Stones that contain different types of energy, corresponding to the attributes of the spirits. ”

Seeing that Xia Chen's expression was very serious, the Fire God Moth didn't dare to slack off, and hurriedly shouted in his heart: "Teacher, are you listening?" ”

[Light]'s voice immediately appeared, "Listen, there is one thing to say, this guy knows a lot. ”

A sense of pride rose in Vulcan Moth's heart, "Of course, he's my trainer. So, teacher, you know this stuff, right? ”

Light: "Well, this stone is called Attribute Pure Crystal, if it is used alone, it is a bit similar to the Attribute Orb, but if it is combined with the Radiance Stone, it can produce wonderful power, which can make the elf burst out with super energy in an instant." ”

Vulcan Moth continued to ask, "So you know where it is?" ”

Hikari replied, "To know is to know, but it's better not to touch that thing now." ”

Vulcan Moth was puzzled: "Why?" ”

Light didn't hide it, and explained directly: "That energy has a strong restraining effect on dark matter, if it is developed now, it may attract the attention of Ultimate Necrozma, your current strength is not enough, it is best not to face it head-on now." ”

The Fire God Moth nodded ignorantly, and said a little entangled: "Oh, so I'm going to lie to Xia Chen and say that I don't know?" ”

Hikari was puzzled, "Why do you lie, I didn't tell you where it was, didn't you know it in the first place?" ”

Vulcan Moth felt that the teacher's logic seemed a bit paradoxical, but he didn't know what was wrong, so he had to nod.

Returning to the real world, Xia Chen was still waiting for an answer.

The Vulcan Moth avoided Xia Chen's gaze and replied with some guilt, "Well, I don't know. ”

…………

It's lying.

After all, it was an elf raised by himself, and Xia Chen saw through the lie of the Fire God Moth from his demeanor and tone.

However, he didn't ask, and the Vulcan Moth didn't want to say that it naturally had its own reasons.

The result of this inquiry is not bad, at least knowing that the Vulcan Moth knows the location of Z Pure Crystal, this is enough, and I will always be willing to say it one day in the future.

After chatting with the fire god moth and washing up with the elves, Xia Chen rested.

Nothing was said all night.

The next day, the group had breakfast together.

From the perspective of mental outlook, several newcomers to Earth slept well last night, except for Acelola, who was carried all the way by Geng Ghost.

She couldn't open her eyes a little during the whole breakfast, and she didn't know what she had done last night.

However, there was no group activity scheduled today, and although it was agreed that they would take the Ultimate Defense Team to mine, they said that they would prepare for a few days.

The time before heading to the Valley of Edgeworth is free to spend.

After breakfast, Acelora was carried back to her room by Gengar to catch up on her sleep.

Xin Li expressed her interest in the lifestyle of the metropolitan people, and was ready to take the cute Tuwang out for a stroll.

Adu was going to visit the defense team's mecha training, and Xia Chen originally wanted to go with him, but was stopped by Gadelia.

"Hang out with us?"

Gardelia invited.

Xia Chen was a little puzzled, "Didn't you go shopping for two days when you came over, and it's dark outside, what is there to visit?" ”

Gadelia pursed her lips, "Can you fly at a speed of two or three hundred per hour all the way, whether you go or not, if you don't go, I'll be with Sirona." ”

Xia Chen thought about it, although they each accepted a legendary elf now, and even Gadelia herself had the courage of a legendary elf, but he still couldn't rest assured, so he agreed.

After speaking to Theonilla, the three of them left the brightly lit metropolis in flying elves.

Because he was not in a hurry, Xia Chen sat in Menas today.

Although it is not as fast as Soleton, it is more comfortable to sit on because of its larger body.

The difference between the two is probably the difference between a supercar and a nanny car.

The three elves of Menas, the Fierce Bite Land Shark, and the Giant Golden Monster flew side by side at a low altitude, and the huge searchlight with extremely high brightness allowed Xia Chen and them to see the scene within a hundred meters in front of them.

Before leaving, Xia Chen asked his mobile phone Lothom to make a "strategy", and the destination of this excursion was [Dammam City Ruins], which was 200 kilometers away.

This was Sirona's idea, and as a mythologist, she was also interested in the history of other worlds.

Xia Chen also thought that this was a good idea, maybe there would be some clues about the ultimate Necrozma in this city.

In the end, the proposer of the trip became the one who made soy sauce.

Because it was flying at a low altitude, there were a lot more extreme beasts encountered along the way, such as the Pheromé Mantis, the Electric Beam Wood, and the Paper Edgeworth.

Without exception, they all pounced like crazy after encountering them, but they were easily solved by the fierce bite of the land shark and Menas.

Even among the Ultimate Beasts, which are on average a notch higher than the wild elves on Earth, there are only a handful of them that can pose a threat to the Hero Ace Bite Land Shark.

Soon, the trio arrived at the ruins of Dammam, which had long been abandoned in the Dark Ages.