July 10, 3900.

Jin received a report.

It was from <><><>.

These spacecraft were instructed to measure whether the high concentration of free magical elements (ether) centered on the sun Celan was expanding.

The period is scheduled to be about one year, and this is an interim report.

The old man reported.

"I see. ......"

He was dispatched in March of the same year.

The fact that the expansion was confirmed after 4 months of measurements means that the rate of expansion is quite fast.

"When will it affect Hale and Ars?"

That is my main concern.

"That far out?"

It is said that the size of the universe is difficult for people living on the ground to imagine, and this is one of them.

Ten thousand years is not that long a span of time when considered on a cosmic scale. But for a human being, it is a long time.

"It's only a matter of finding a way to consume the free magical element (ether) by then, isn't it?

There is no guarantee that there will be any living creatures left in Ars until then.

"Still, keep measuring for the planned period of time."

In this world, anything can happen.

There is no guarantee that the rate of expansion of the highly concentrated space will not suddenly increase.

"In the first place, we don't even know why the free magical element (ether) is radiated from the sun's sunshelan.

"Do so. In the meantime, we will build a dedicated sonde and establish a system to measure the boundaries of the highly concentrated space.

<

As a matter of interest, Jin's use of technical terms of subtle German origin is due to the fact that the books on which he based his knowledge are subtly outdated.

Some of the terminology that is now replaced by English was German ...... in the Showa period, because there were scientific journals from the 30's and 40's in the facility. This is because there were scientific journals from the 30's and 40's in the facility.

The word "sonde" is a German word, and the English equivalent would be <>.

The meteorological observatory, the Self-Defense Forces, and other research institutes use , a balloon to measure high-altitude weather (the reason why Hitoshi called this measuring device a sonde).

That is why Jin calls the ropes used in the mountains and the dinosaurs (the pronunciation of "S" is not clear in English). (In English, the "S" is not muddled, so it becomes "".)

But that's beside the point.

"A communication device and a barrier. A micro-spaceship with a communications device, a barrier, and a simple means of self-defense?"

Yes.

One meter in diameter. <.

< and a for meteorites.

For emergency use, it has a that can transfer 10 kilometers.

Six of these are built, four in the orbital plane of the planet, and two in the upper and lower polar directions. In other words, they are the vertices of an octahedron inscribed in a spherical highly concentrated space.

They will be able to communicate with each other and cover each other in case of any malfunctions.

"Is that all right?"

<

* * * * * *

Jin spent three days to build six machines.

"Is it done?

"Yes, Father."

Jin named these micro-spaceships for measurement .

"We'll have , , and back us up in case anything goes wrong."

<>><>.

Jin was relieved to know that he had done all he could do to deal with the high concentration of free magical element (ether) in the space.

"It's time to start thinking about Hale ...... before that."

<700672, Jin thought.

"Reiko, let's go to Hale."

"Yes, father."

<, but he chose to talk to the directly.

"...... Elder, the <> are in Hale, aren't they?"

<

Jin was about to head for Hale when he finally received confirmation. This time, the <> were in Hale, so there was no problem, but if they were in the northern part of the >, it would have been a wasted trip.

"That's all right then."

This time Jin moved to Hale.

* * * *

"Oh, Master Jin, welcome."

At Hale, I was greeted by 700672, who was still the same as before.

Jin was relieved to see that he did not suffer from <>, as he could intuitively guess.

Perhaps Marikka is ...... or rather Marikka's homunculus is somewhere in this world ...... that Jin thinks is not Ars.

It would be confusing if there were people who are not supposed to be there.

It might be ...... better, though, if there is no one who knows about it.

Regardless, Jin decided to explain the purpose of his visit.

"Hmmm, checking on the development of Hale. In a word, it's going well."

The most important thing now is the improvement of the natural environment.

Specifically, it is the restoration of vegetation.

Now that we are restoring the ocean water, precipitation is increasing.

At the moment, it is only in the coastal areas, but eventually the precipitation in the inland areas will increase dramatically.

What will happen to the mountains with little vegetation when this happens? Jin knew this well in modern Japan.

That is why they are rushing to plant trees.

However, this does not mean that we should just plant trees as much as possible.

The vegetation that is not suited to the climate will soon be ruined.

"We are trying to get as close as possible to the past," he said.

<700672, the materials left behind on Onogoro Island, and other materials found at the . They are trying to reconstruct the vegetation of the past based on the data that <> 700672 has, the data left on Onogoro Island, and the data found at other <>.

"It is quite difficult because the age of the remaining materials is unknown."

There are areas where the vegetation differs depending on the age of the site, he said.

"In such areas, we try to match the older vegetation," he said.

"I guess it's not that simple, is it?"

"Yes. But it is worthwhile to restore the old ones to the way they were when the masters lived there.

I enjoy constructive and creative work, the elder laughed.

"I'm glad you're enjoying it.

Jin laughed along with him.

He is a little disappointed that <> 700672 has not told him anything about Marikka.

（I wonder if it means that he can't talk about it easily.)

Jin consoles himself by imagining this.