Peaceful and busy days pass day by day, unknowingly come to this world for two months, four months before the mission countdown, the search for the spaceship is not smooth, although a lot of useful things have been found, but the possibility of assembling a flying spaceship is still very small.

However, the cultivation of the spirit grass is quite smooth, since there is an independent room, the spirit grass can also be taken out and cultivated in a dignified manner, after more than a month of watering the holy water every day under the cultivation, two groups of the life-saving spirit grass reserves have been harvested again, so that the life-saving spirit grass reserves have become three groups again.

In addition, I still haven't figured out what the other side of the portal is, because after observing it several times in a row, it has been shrouded in a gray fog, and no human existence has been found, although it is certain that it should be Earth, but I can't figure out where it is.

But as long as it's sure it's the earth, anyway, the task is just to try to get back to the earth, and there is no rule on where to go and thank anything, so it's been quite positive for exercising the bone shrinking skills for more than a month.

Generally speaking, this bone shrinking exercise is also smooth, speaking of which, the bone shrinking skill that is being exercised now is actually a little different from the bone shrinking skill in the martial arts world, because the true qi in the limbs and bones of the meridians is not an ordinary internal force qigong, but a kind of true yuan force.

Therefore, after the exercise, it is not simply to dislocate and fold the bones and joints, but the whole body really shrinks under the full operation of the true qi, and even if the exercises are reversed, it is very likely that the body will become larger, so the exercise should be called the size of the Ruyi Gong, of course, there is no mind or time to try to reverse the exercises, as long as there is a chance to shrink the body to the point that it can pass through the small portal.

After more than a month of insisting on exercising, there is indeed some effect, when the full operation of the bone shrinking work, about 5% of the volume can be reduced, this is based on the accurate data calculated on the detection equipment, it is really not a simple problem of bone dislocation overlapping, it is the volume will be reduced as a whole after the full operation of the exercise, the height and shoulder width and so on are all reduced by 5%, so as long as you exercise well, there should be a way to drill through the 45 cm circle, of course, you will not borrow that method to return to the earth unless you have to.

Once again, I completed the exercise of bone shrinking work, and my body recovered from its original state in a burst of bone crackling sound, and it was also painful to break out of a cold sweat, which was really uncomfortable when I was running at full strength, and there was a tingling sensation all over my body, and I thought that my body was pressed by a weight of several tons, and even breathing became very difficult.

After taking a few deep breaths, the pain on his body was relieved, but he took out a stealth module about 5 millimeters thick about the size of a penny and carefully observed it.

This thing is dismantled from the iron-blooded mask that is quite worn, the chip was originally installed on the forehead of the face armor, as long as you press it, a group of separated chips of the chip module will be adsorbed together, forming a complete circuit, and you can activate the stealth mode, and then press the chip that is adsorbed together and it will pop out, thus ending the stealth mode, of course, you can also wait for the energy in the chip to run out and automatically exit the stealth mode.

There is no special password to operate this thing, and there is no identity authentication system, but it makes Zhang Tiancheng's use much easier, and he is even ready to install this thing in a bracelet, which can be borrowed at any time.

Another thing that has to be said is that after the stealth mode of this iron-blooded race is activated, it is not that it is really afraid of water, as long as the water touches it, it will lose its stealth effect, but after completely falling into the water, the water will distort the light of the stealth energy field, causing circulation destruction and resulting in stealth failure......

Originally, I thought that the optical stealth module chip would be highly refined beyond the phenomenon, which is not the existence of the earth's existing technology that can be analyzed, but in fact this is not the case, the degree of precision alone is not higher than that of modern computer chips, and the structure is not as complex as imagined.

Of course, the reason why Zhang Tiancheng studied and analyzed it was because he accidentally discovered a very magical thing, it seemed that the internal electronic circuit of the chip used by the iron-blooded race was strikingly similar to the basic circuit used by the teleportation array.

However, the filling of the electronic circuit is completely different, it is a mysterious substance that emits a faint red light, and I don't know what kind of substance it is, but the preliminary guess is that it may be a mysterious substance with some similar function to Mithril.

A similar electronic circuit was found on the curvature thruster chip, but the loop filling on it did not emit red light, perhaps a substitute for the mysterious house, so it failed to have the magical automatic energy recovery function.

It was this discovery that made Zhang Tiancheng obsessed with the technology of this iron-blooded race, and when he had nothing to do, he used a microscope to carefully analyze and observe the chip, recording those basic electronic circuits little by little, hoping to find out some rules.

……

And just when Zhang Tiancheng was concentrating on recording the information on the special chip little by little, the earth was caught in a war of a huge scale and almost all the people were soldiers, and the enemy was a huge number of aliens.

And it's not just those aliens that crawl on the ground, there are also amphibious aliens that can come and go freely in the ocean and on land, and there are even a very small number of aliens that have evolved something similar to insect wings that can glide and fly, and the situation is quite dangerous.

The alien was originally just an accident that quickly multiplied in a town, and after attracting the attention of the military, it was completely wiped out by a tactical nuclear bomb, but in fact, a few alien hatchlings hiding in the basement survived, and finally managed to escape from the human blockade.

After learning the lessons of the last failed alien, those aliens have even learned to reproduce as much as possible to avoid humans, and have been quietly breeding in those inaccessible mountains and forests, and even evolved a variant of aliens that can survive in the sea, and enter the depths of the ocean to reproduce with the help of that huge number of fish.

After more than three years of silent development, the number of xenomorphs grew to a huge number of billions, and then suddenly launched a full-scale attack on humanity, preparing to completely eliminate the threatening humans.

In fact, human society is also aware of the reproduction of aliens, but for some unknown reason, relevant reports have been suppressed, so they have not attracted much attention, so for many ordinary people, the attack is very sudden and violent, which can be regarded as heavy casualties.

However, what is surprising is that the combat effectiveness of the human army is also directly bursting, with the help of powerful firepower, it is stunned to resist the alien attack that far exceeds the number of aliens dozens of times, and it is not at all like the original alien who was killed and lost his armor......

And just when humans and aliens were fighting to the death, those rebellious Predators and the ultimate Predators who tracked them also came to Earth, and when they saw the huge number of aliens on Earth, they were also confused, and then fell into a huge melee.

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