January 1 of the new year is a special day for the Li Huasheng family, as they are heading towards Eden City, which is located in the biosphere. Early in the morning, with their easy luggage, they went to the platform of the bullet train to prepare for the bullet train, located near the equator, 300 kilometers outside the Thousand Islands City, a satellite city of Eden City called Oasis. The city of Eden is divided into four parts, from bottom to top, the first part is located in the satellite city oasis of the human settlement, the second part is located in the underground city below the biosphere soil, the third part is located in the ecological circle "does not fall into the mountain" of the mountain inside the above-ground city, and the fourth part is located in the biosphere castle and the main city. From the top of the ecosphere, you can see a castle built on a hill in the Middle Ages, a stone street and buildings made of red tiles and white bricks built around this central point.

The Oasis Satellite City is located directly below Eden City, with a platform in the center of the city that connects the bullet train system downwards to the heavy material transportation system for freight transport, and a large transportation pipeline upwards to connect the core area of Eden City. After arriving at the Oasis Satellite City, Li Huasheng and his family sat in the transmission warehouse in the transmission system called the "Tree of Life" to the underground city of Eden City, and arrived at the entrance of the above-ground city of Eden City after 40 minutes. The city of Eden is divided into two parts: an earth-level city and an underground city. The dungeon is like a space base, each floor has an office room and a control room, it is the main control city that monitors the smooth operation of the ecosystem, there are tens of thousands of people living here, and the people who live here are the guardians who maintain the normal operation of the ecosystem, the guardians live in the oasis satellite city on weekdays, and only stay in the Eden Dungeon on duty and work when they work. The above-ground city of Eden City is located in the biosphere of a mountain called "the mountain that does not fall", which is the reception hall and core work area of the ecosphere tour, where the city lord mainly works, and the interior decoration is dominated by the splendid style of the Western European court, and the furnishings are elegant and solemn.

Li Huasheng went to the counter in the reception hall to go through the temporary residence procedures, and the lady at the counter thoughtfully sent the map and residence voucher of the above-ground and underground cities of Eden City to Li Huasheng's family's band of light brain. Li Xinjian was like a wild horse that had escaped, and he quickly walked to the castle balcony of Eden City, where he could have a glimpse of Eden City. Eden City is not big, only 1000 square kilometers, the center of the city is a hill, on the hill is the European medieval castle built by the mountain, under the mountain is the stone slab street, the road is like a down, connecting the antique main buildings, the buildings include the Sacred Heart Church, the fountain square, the paper library, the sauna, the city hall, etc., the periphery is a small bungalow made of red tiles and white stone bricks, all the buildings are in the style of the medieval antique European city model. Li Xinying gently stroked the little black mare pulling the carriage with her hand, gave it a sweet candy, and the family took their luggage and got into the carriage to go to their place of residence that night.

The carriage stopped at a two-storey bungalow with a small garden of roses, which would be Mr. Lee's home for the next three months. Walking into the house, I saw warm and simple furnishings, the furniture is made of logs, the table cloth curtains are hand-sewn, the sofa is made of leather, there is a living room and dining room on the ground, next to the dining room is the kitchen and bathroom, and there are three bedrooms and a bathroom on the second floor, among which the decoration and furnishings are imitation of the style of a European town. The most special thing is that there is a modern basement with advanced audio-visual entertainment equipment and communication terminals, as well as a back door elevator leading to the dungeon, which is only available to residents and can only be opened by a facial recognition system. Entering the Eden Dungeon from the elevator is very convenient for you to take the city's transportation to the castle or other places.

Mother Liu Mei happily looked at the activity function list and said happily: "Watson, there are a lot of activities we can sign up for, such as: coastal diving, walking in the primeval forest, desert experience camping, ice skating and skiing, guided tours to appreciate plants, and ......, which dazzle me, are all good things, and only need to pay for gold points, and don't need to spend on contributions?" Li Huasheng smiled, "Slow down, let's plan well these days and enjoy this ecosphere trip to the fullest!" Li Xinjian took Li Xinying's hand: "Mom and Dad, my sister and I went to the street to walk around and experience it first, the style of European cities in the Middle Ages is not waiting for you." After saying that, he went out happily. Li Huasheng saw the smiling expressions of his family, and thought that it was worthy of spending all the contribution points he had saved for many years, and it was really worth the money to make his family have a beautiful and pleasant trip to the ecosystem.

But behind the happy ecosphere journey, there is a hidden crisis that makes this happy family face the destruction of their family.

In the core area of the 50th floor of the Eden City Dungeon, the city lord of Eden City, Limad, had an emergency video conference with the 80 senators, only to hear the roar of the city lord Limad: "I will not give in to them!" One of them, the councillor representing the city of America, An War, said calmly, "The lord of the city is a little restless, now is not the time to be rash, things will always find a solution!" Could you please report the anomalous data so that we can discuss it." Limad, the lord of the city, projected a three-dimensional image of an endless forest of dead trees on the screen, explaining: "Now in the biosphere, there is a forest of about 100,000 hectares, and most of the trees in the forest have withered due to fungus infection. You can see a zoomed-in image of the fungus." The screen projected an image of a fungus that looked a bit like a crown, and Lord Limad continued, "This is a fungus of unknown species and properties, and it is tentatively named Crown Fungus because it looks a bit like a crown. The fungus was cultivated artificially and its fungal spores were spread into the forests of the biosphere by an anti-government group, which was a man-made disaster."

Matsushita Sunset, the Speaker of the House of Representatives representing Red Sun City, explained: "That mysterious anti-government organization calls itself the "Ark Pioneers", and they advocate pooling human resources to build an interstellar mothership, rush out of the solar system, immigrate to outer space, and open up human living space in outer space. He opposes the current government devoting too much resources to the development of literature and art and the conservation of the ecosystem, and believes that the social system of earning contribution points should be abolished, and human life should be fully transformed into a space base, and the earth ark should be transformed into a space fortress with the operation mode of the base on the back of the moon, and this space fortress should be used as a base to actively develop interstellar space technology, explore terrestrial planets beyond the solar system, establish terrestrial planet bases, and take immigration to outer space as the ultimate goal." Hearing such an explanation, the speakers of the various meetings exchanged their heads and whispered.

The lord of the city, Limad, said angrily, "Listen to the request of the author of this man-made disaster!" A small silver circle with the lightning symbol of "Ark Pioneers" appeared on the screen, and a low synthetic voice sounded: "We are the Ark Pioneers, and the fungi that cause the trees in the biosphere to wither are cultivated and spread by us, and we have the ability to stop the spread and eventually destroy these fungi. In exchange, we asked Silver Moon to make the secret recipe for "Yuan Shui", and we promised to destroy all fungi in the ecosystem within 24 hours after receiving the secret recipe and verifying its authenticity." When this request was heard, the meeting was in an uproar.

Huang Yongsen, the speaker of the parliament representing Huaxia City, was surprised and said, "The "Ark Pioneers" actually know the special features of "Yuan Shui". Water is a wonderful substance that contains energy. On one side of the aqueous substance is H2O, an element synthesized from two hydrogen atoms and one oxygen atom; The energy side of it is actually the disordered "psychic power", and the water with the "psychic power" is the necessities for sustaining life, also known as the "meta-water". Although water outside the earth is also composed of two hydrogen atoms and one oxygen atom, the amount of "psychic power" is very small and not enough to sustain life. Now known outer space life forms, there are Virgiles, Zerg and robots, these aliens have a limited amount of "Yuan Shui" in outer space, and they need to buy "Yuan Shui" from us every year in the form of scientific and technological technology transfer or exchange of precious metals. It seems that the "Ark Pioneers" have great ambitions and a lot of schemes! We can't let them succeed."

Goya, the speaker of the House of Representatives representing Thousand Islands, said worriedly, "The supporters of the "Ark Pioneers" must have penetrated various government departments and agencies, and even the highly classified information of "Yuanshui" can be obtained, and they will ask for the secret recipe as soon as they open their mouths, maybe they have secretly colluded with aliens to try to overthrow our government. If we don't give in to them, do we have a solution to this crisis?"

The calm city lord Limad took a breath and said calmly, "If you ignore the request of the "Ark Pioneer", according to the spread rate of the fungus, 30% of the trees in the biosphere will wither after 3 months, and the balance of oxygen and carbon dioxide conversion in the biosphere may be upset, and other animals that rely on oxygen to breathe will be affected, and the consequences are unpredictable." Silvermoon's "Brain" has vetoed the request to provide the "Ark Pioneers" with the "Yuanshui" secret recipe, because he said that he does not have the authority to disclose the information of the "Yuanshui" secret recipe, but "Yinyue" and I have agreed on a solution. In view of the importance of the matter, there may be spies for the "Ark Pioneers" within our government, so the content and details of the solution will not be released for the time being. Today's meeting is just to inform you of the relevant matters, and I ask you to reassure the people in the know and prevent the "Ark Pioneers" from having the opportunity to fish in troubled waters."

The other speakers present at the meeting agreed in unison: "The lion of the "Ark Pioneer" opened his mouth and asked for the secret recipe of "Yuan Shui", and they must not be allowed to succeed. We know how to deal with it." The lord of the city, Limad, announced the dissolution of the meeting.