The outermost planet of the star system, one-third the size of twilight, is located on the Kuiper Belt, about forty astronomical units from the star, and it takes hours for the light of the star to shine on the planet.

From the surface of this planet, the mother star in motion is not much different from the bright stars in the heavens, darkness and cold are the themes here, and the average surface temperature is constant at minus 200 degrees, which is a cold hell that can freeze steel in the true sense.

After the protoplanetary disk gave birth to stars in the center, the remaining debris that could not fall into the stars went through a long period of time, because of the gravitational effect of each other, part of the inner circle was dense enough to form planets, and the part of the outer circle was too widely distributed to form a large number of meteorite groups - the Kuiper belt.

So it's very rare for a planet to appear in such a remote orbit, perhaps because of a wandering planet captured by a star, or because the local meteorites in the Kuiper Belt were dense enough to form a planet.

Over time, the planet's gravitational pull will absorb the Kuiper Belt meteorites into its own mass, thereby weakening the stellar bondage, increasing its distance from the star by one centimeter every year, and in the foreseeable future, it will break free from this star system and become a wandering planet.

Now that future has changed, it has a home, a group of organisms on a distant scale spanning dozens of astronomical units from the direction of the star to occupy the uninhabited planet.

Due to the ultra-low temperatures on the planet's surface, their initial landing was a failure, and a large number of organic seeds descended on the surface, where they were frozen in a few seconds and entered eternal silence.

Falling from the high altitude of the universe, during this period, the seeds will be quickly frozen by the ultra-low temperature of more than minus 200 degrees, and will be smashed on the surface in a state of free fall, and there is no possibility of survival.

However, if this alone could not stop their race, the seeds radioed the environmental information in the last moments before death, and the closest species to the outermost planet quickly learned of the situation, sending a group of mothership biota carrying large amounts of nuclear enrichment to the outermost planet.

They do it in a rough way.

These mothership creatures landed directly on the planet in free fall, and the huge volume carried a terrifying momentum to knock the ground out of a huge crater tens of thousands of kilometers in diameter, and these mothership creatures completely put their own life and death on the line, and paved the way for their kind to conquer the planet with their own corpses.

While the temperature is still not clear, a large number of collectors rely on the bionuclear reactor to excavate the strata below the biological corpses of the mothership, establish underground space, and transfer a large amount of materials underground.

The ultra-low temperature on the surface will soon recover, and the light of the stars is so faint that such a scale is almost equivalent to starlight, and how much energy can be obtained from starlight? Photosynthesis loses its utility in this case.

Before the surface temperature can be restored, the gatherers have completed the transfer of supplies, established a planetary stronghold beneath the surface, and started construction work around the stronghold.

They are no strangers to the low temperature environment, even if the environment here is lower than the original surface environment, but it is only the difference in temperature, the essence is still the same, if you want to expand and colonize in this environment, you need a heat source, and then based on the heat source from one to more a large number of heat sources, when such a heat source is laid out on the whole planet, the colonization of that planet is also completed.

Underground, the collectors created an insulating layer of lightweight, loose, porous organic fiber material on the outer wall, assuming rhizomes, to retain heat as much as possible and keep low temperatures as low as possible.

Then, on this basis, the material of the planet is obtained, processed and utilized, and then imported into the production sequence, so that the snowball will roll bigger and bigger.

The radio communication creature was conceived, and it has a long, long metal antenna that extends from the ground to the surface, standing in the fierce cold wind, and communicating with the gathering strongholds of the major underground cavities, in this way, the underground colonization of the gatherers will be much smoother.

For close colonies, gatherers will prioritize expansion in the direction of their own strongholds, merging with each other and then continuing to expand in the direction of farther colonies, in this way they will soon be able to complete a global underground network, and all that needs to be done is to make the net denser and occupy the unexplored underground.

After completing the global underground occupation, these gatherers will not stop there, because this is only the initial completion of their colonization operations, and the area occupied is only the layer that encloses the entire planet at a certain distance from the surface, which does not allow them to control the resources used throughout the planet.

Therefore, after laying the entire spherical underground, a large number of rhizomes begin to descend vertically, invading and expanding towards the planet's core to occupy more resource areas.

The planet's core has been completely cooled over the years, leaving only an extremely dense and massive mass of solid iron, which has allowed the gatherers to adapt their expansion plans.

The rhizome will extend all the way down, all the way to the underground stronghold on the other side of the planet, without the terrifying heat of the earth's core, the collectors can completely recklessly cover the interior of the planet with a dense network of rhizomes extending in all directions, and then through the rhizome, a large number of captured molecular substances are transported to the hive for processing, so as to obtain a large number of usable materials.

Of course, despite the absence of terrible heat, ultra-low temperatures still exist, which caused a lot of difficulties for the rhizome, which had to build a reactor stronghold to obtain heat every time the rhizome penetrated a certain distance, otherwise it would be frozen, and because of this, the expansion of the rhizome was many times later than the normal expansion time.

In order to get more and more heat, it was clearly not enough to use a fission reactor alone, and the gatherers began to emulate the fusion reactors of the Serens and bring more heat to the planet.

They hollow out the edge layer of solid iron to create a shaft, inject a large amount of liquid water into the shaft, and finally put a hydrogen bomb into the liquid water to carry out a nuclear explosion until the entire water body is heated to 100 degrees or more.

The collectors will periodically measure the temperature of each shaft, and when the temperature of the water in one shaft drops below 60 degrees, they will put in a hydrogen bomb again to heat it up.

The solid core and high-density formations are fully able to withstand the vibrations of a nuclear explosion, and the natural gravitational pull generated by the massive mass does not require the collectors to create artificial gravity.

With the help of the fusion reactors, the gatherers expanded even faster, and it didn't take long to complete the task entrusted to them by the Supreme Will, and the entire planet was densely covered with rhizomes from the ground to the core, except for the hidden and unmodified surface environment, and the temperature was constant at zero.

After this, they fell silent and were hidden as the Clan's hole cards until a certain point in time, a message from the Clan brought them back to their former form.

"Do you understand the plan?"

"Understood."

"Then start breeding and spreading the signal body."

"Understood."