Amazon Basin, South America.

With 40,000 square kilometers of rainforest, it's one of the last uninhabited areas on Earth. And the gunsmith's plane fell here.

Colonists arrived at the end of the 19th century, and in the century that followed, the so-called civilized people began to destroy tribes and destroy the ecology. It wasn't until the outbreak of the Imperial Unification War, which affected the pattern of the human world from the side, that all this stopped.

It was predicted that the greenhouse effect and the decline in rainfall would lead to the disappearance of this rainforest, but in the middle of the 21st century, many new technologies have given humans the ability to intervene in the environment, the birth of some new energy sources, and the iron-fisted policies of the empire, so that those who make a fortune by destroying the environment have basically disappeared.

In the era of multinational co-existence, black-hearted businessmen colluded with the government to make huge profits by buying and selling environmentally damaging goods, and when asked why they did not care about their future generations, they could calmly answer that when they had money, they could immigrate to cities like Vancouver or Singapore, and it had nothing to do with other people's future generations.

In the era of the unification of the empire, the royal family has not yet found a way to immigrate to the alien planet, so their attitude towards the environment is that whoever dares to dig a radish in my homeland, I will fill the hole with his whole family.

November 2100.

The gunsmith recovered five bodies from the wreckage of the plane, and all but himself, as expected, were killed. Although he didn't even know the names of these people, he still took great pains to bury them by digging a pit with half a steel plate.

If the crash was a murder against himself, then these five people were undoubtedly innocent victims, and the gunsmith thought so in his heart, he was not a superstitious person, but he would not have watched those people be exposed to the wilderness.

"If you change Tianyi, you will throw them into the river to feed the fish......" The gunsmith muttered to himself, when he was in trouble, he often thought of this old friend, there seemed to be nothing in this world that was difficult for Tianyi, as if you threw him into hell, he would definitely be able to climb out.

The soil of the rainforest is soft, and it takes a lot of time to bury people, but it doesn't take much physical strength for the gunsmith, and after exhausting the personnel, you have to think about survival and escape.

The gunsmith sat on the ground and ate the chocolate bar in the co-pilot's pocket, the only thing he could find to eat. After a little addition, he entered the fuselage again, and after more than ten minutes, he returned to the outside, with a circle of seat belts on the cabin seat on his right shoulder, at least a dozen, holding a stack of cloth covers on the seat in his right hand, and carrying many mechanical parts in his left hand, which he didn't know where to remove it.

Once everything was stacked, the gunsmith went in search of water. Just now he heard the sound of running water, not far from the place where the plane fell, so at this moment he followed the direction of the sound and quickly found a small river.

Finding water in the rainforest is not too difficult, but the water is not necessarily clean, and in some swampy depressions, there are ponds that stretch for miles, which seem to lead to a certain river, but in fact these are stagnant waters, because of the topography and the humidity of the air, formed and persisted after the rainfall, the water is very turbid, and God knows how many plants, animals and parasites are in it.

The river that the gunsmith found was not wide, but it was clearly a tributary of a large river, and a few tree trunks across the river indicated that the river might swell after the rains, and those trunks were washed over at that time and stuck in the river when the tide receded.

The water here was not clear, but it was much better than a swamp, and the gunsmith went down to the river, and the current was not very fast, and he stood on the shore, took off his clothes, washed them, and drank some of the water from the river, which tasted very bad, but at least replenished some water. Before leaving, he also observed the surrounding terrain and the traces left by the animals, but he did not gain much. Large animals such as hippos can usually be found in open river valleys, but this area appears to be the most complex and dense core area of swamps, rivers and jungles.

The gunsmith had a poor sense of direction and could not drive any means of transport, not even horseback, but he was a good hunter, and as a child, a light snowfall in the vast white snowfields of Siberia could cover the footprints left five minutes earlier, but he could still make out the path, and it was natural to travel back and forth in the jungle.

Following in his footsteps, he quickly returned to the wreckage of the plane, and at the moment he was naked, although he didn't feel cold, but the mosquitoes in this place were not easy to mess with, so it was better to hurry up and make a fire to dry his clothes and put them on.

Remnants of sparks could be found everywhere on the broken body, and it was not difficult to light a fire, and after more than ten minutes, the gunsmith had dried his clothes.

He sat by the fire, cut the cloth cover on the plane seat with a knife, pulled it into a long strip, and then turned his trouser leg up to a more suitable length, and used a steel needle that was not much thinner than his fingers to lead the wiring, and sewed the trouser leg well, so that he could move more freely, but fortunately, because he felt really uncomfortable before, he did not wear leather shoes, but wore his usual boots, otherwise in this jungle, leather shoes would soon be worn out, and eventually evolved into a barefoot situation.

As Tianyi pointed out, the gunsmith was the most outstanding craftsman of his time, so in the next 30 minutes, he transformed a pile of seemingly scrap metal equipment of unknown meaning into a simple radio station, and also made a recording device, and began to automatically call for help.

However, the only power is estimated to not last long, and the gunsmith also understands that this is just luck, there is a more than 90% probability that no one will receive a distress signal, in this kind of place, in addition to expecting another plane to fly in the sky, and its distance is just enough to receive the signal, there is only hope that there is a drug dealer who is hiding deep nearby.

When the gunsmith finished his distress radio, he came to a broken trunk, which had been half-emptied, and plucked a leaf slightly smaller than the palm of his hand. He took the tie out of his pocket, removed the metal pin from the tie, rubbed it on the silk tie in the same direction for a while, and then lowered the leaf to the small pool of smooth water, and the pin to the vein in the center of the leaf.

This is similar to a compass, the leaves carrying the pins float on the water, and they will gradually deflect, but the scene that appears before the gunsmith's eyes at this moment is very strange, only to see that the pin is constantly rotating, not pointing steadily in either direction, until it loses its magnetism after a while, and does not stop moving.

The gunsmith looked at the sky and said to himself, "This plane must have been caused to fall by a magnetic field......