Train Survival: You're really trying to survive!

A bright blue moon gradually rose to the center of the sky, its light spilling onto the tranquil sea and adding a touch of coolness.

Su Li sat on the sofa, looking out the window at the otherworldly moonlight, and suddenly thought of the poem "The moon rises over the sea, and we share this moment though we are far apart."

"Shouldn't we have a drink at a time like this?"

Su Li picked up a bottle of cola, raised it to the moon in the sky as a gesture, and then downed it in one gulp.

She put down her cola and looked at the azure moon again. The familiar shadow was gone. Su Li sighed, wondering if she would ever see that familiar moon again in her lifetime.

Su Li sat back down on the sofa, flipping through a book while keeping an eye on the sea on both sides out of the corner of her eye.

Tonight, they will continue driving through this barren area, which appears as a pale yellow on the map, and enter a blue-green region.

The other members have all returned to their dormitories to sleep and recover their strength. Only Su Li is on the night shift tonight.

The train sped across the sea, the tracks barely level with the water's surface, splashing water everywhere it went, making it look quite imposing. The waves were even higher than the windows, allowing Zurich to see a great deal of spray, adding a touch of dynamic beauty to the otherwise static Sea of ​​the Moon.

Suddenly, the radar on the control panel beeped. Su Li looked at the control panel and saw a message on the radar screen.

Su Li checked the information and it indicated that there was a mining area with mixed iron and copper ore deposits about 5 kilometers away.

"Both of these minerals are not scarce, let's wait until we find a silver or gold mine."

Su Li made some minor adjustments to the radar, changing the alert sounds for several mines. Then she returned to the sofa and sat down.

The train was traveling at a high speed, and 50 kilometers passed in the blink of an eye. After reaching 50 kilometers on the track that had been above the sea level, it suddenly submerged and entered the water below the surface.

Zurich activated the train's sealing function in advance, sealing the boiler's exhaust vents so that the smoke could only be released into the space at the front of the train.

Su Li turned on the oxygen generator, and once it started running, it could convert carbon dioxide in the air back into oxygen.

This oxygen production system has two modes: active and passive. In passive mode, it consumes one elemental fragment per day and is designed to provide enough oxygen for boiler combustion and for three people to breathe.

Active mode will proactively promote the growth of algae inside, accelerating oxygen production, but it will also increase consumption, requiring an additional 3 wood elemental fragments. In this case, it's obvious that active mode should be used.

There is a certain shortage of oxygen, but fortunately, Zuli compressed a lot of air before coming here. Combined with the large amount of air in the training ground, it should be able to sustain us for 7 days without any major problems.

Su Li switched to active mode, and the nutrient water in the oxygenator turned a pale green color. Su Li could sense that the concentration of wood element in the water had increased significantly.

This oxygen generator is a cylindrical device with a mechanical component at the bottom and a glass jar at the top. In the middle of the jar, there are a large number of hollow glass panels, which form the biological facade of this algae oxygen generator and the foundation for algae to grow on.

At the bottom of a single hollow glass plate, carbon dioxide, as a nutrient, is injected into the culture medium through a supply line to generate bubbles. The eddies formed as the bubbles rise stimulate the algae in the culture medium to absorb carbon dioxide and light, carry out photosynthesis, and continuously grow and reproduce.

This technology existed before the destruction of Earth; now it's just that the power source has been changed from electricity to elements, and the algae inside has been replaced with algae from another world.

After activating the active mode, green algae were visibly growing on the glass plate inside the glass tank in the middle of the oxygen generator, and soon covered the glass grid in the middle.

After activating the active mode, in addition to obtaining a large amount of oxygen, it can also produce some extra green algae every day as food. According to the user manual, this algae tastes terrible because it produces lignin, making it taste like chewing wood.

But it's filling. In a real crisis, you can eat this algae to survive.

Besides the active mode, there's also a chemical oxygen-generating mode, which consumes pre-stored chemical reagents to produce oxygen through a reaction. However, these chemical reagents are limited. Once they're used up, you'll have to trade with Zheng Hongyuan and his group again.

Su Li felt that she had already received a considerable amount of investment from Zheng Hongyuan and his team, so she shouldn't be wasteful at this point. She should let them give the chemical oxygen generator to those who needed it more.

After turning on the device, Su Li smelled the air but couldn't smell anything. However, she did find the air to be much stuffier.

This is because the carbon dioxide emitted by the boiler makes the air inside the carriage more polluted.

Su Li rubbed her nose. "Fortunately, the wood produced by the system is pure wood, and the boiler's combustion efficiency is frighteningly high."

The wood produced by the system contains nothing but lignin and is composed of pure carbon, hydrogen, and oxygen.

To obtain special wood with a distinctive aroma, you must mentally focus on preserving the wood's properties while felling a tree. The resulting wood will not be simply "wood" but rather a "segment of tree X".

As a trade-off, production will decrease. This has always been the system's stance: if you want to use the system's convenience, you must accept the cost of lower production.

If you really can't bear to part with those resources, then don't use the system functions; cut down trees yourself and process the timber yourself.

The wood, broken down by the system, produces only carbon dioxide and water when burned. There's no sulfurous smell or any other strange byproducts like nitrogen, which reassured Zuli considerably.

All I can say is that I'm grateful for the simplification of the Eternal System. Otherwise, the difficulty of survival would have been significantly increased.

The train finally reached the turning point, and the entire train slowly sank, sinking below the sea level. Zu Li leaned against the window, watching the water slowly rise from the bottom of the window to the top.

The train slowed down at first, and then slowed down further and further. When the entire train was submerged, the speed stabilized at 100 kilometers per hour. The water splashes by the windows finally disappeared, allowing Zuli to see the scene outside.

Su Li looked outside. The azure moonlight shone into the water, making the underwater world glow with a blue radiance. It looked like a dream. The entire train floated on the water, constantly diving down, as if entering a fairytale dream from reality.

After traveling a certain distance, the train finally changed from a submerged state to a parallel state, and the entire train was traveling on the seabed about 10 meters underwater.

Su Li suddenly remembered something and quickly went to the second floor of the rear carriage. Through the last window on the second floor, she looked out to the back of the train.

All that could be seen outside was a murky, yellowish muddy water.

This discovery made Su Li slap her forehead. "My God, such a huge commotion?"

Yes, the train travels at 100 kilometers per hour on the soft seabed, naturally kicking up a lot of silt and sand, leaving the sea behind it murky after the train passes.

From a distance, the movement of this train can be described as quite a spectacle.

"It's too conspicuous. Won't it attract enemies?"

Su Li couldn't help but worry.

The world they have now entered is a multi-racial world, which is perfectly applicable to the Black Forest Theory.

People in the Black Forest all carry guns and remain silent.

And what about Su Li and the others? They were like people blasting cheesy, lowbrow pop songs through a megaphone, with a rotating light from a dance hall overhead, as if they were afraid no one would see them.

In an instant, Su Li had the thought that she might as well just stay in this world, eat and wait to die, until the time was up.

But considering that I just used the last map, I felt a little reluctant to part with it.

Those colorful and vibrant places are most likely resource-rich areas. Zuli and his people are currently most lacking in resources.

If we back down this time, then firstly, the precious map will be completely wasted.

Secondly, Su Li and the others are in a terrible situation right now, and Su Li doesn't know what the next world will be like.

For the time being, don't even think about enabling the World Selection feature. Without World Selection, the next world will be completely random, and what if the next world is even worse?

Underground lava fields, glaciers at temperatures below -100 degrees Celsius, worlds filled with toxic gases, and even outer space—there are countless worlds whose living environments are beyond the capabilities of Su Li and her companions.

Compared to these other worlds, the water world where Zuli lives is actually not very stressful.

During her short few weeks of survival, Zuli learned one thing: when there's an opportunity to fight, you must fight. Don't pin your hopes on getting lucky and finding a better map next time.

There are quite a few lucky guys like this in the chat room, but that's just survivor bias. There are many more lucky guys who didn't win the gamble and died in another world.

Therefore, staying put and waiting is not a viable strategy. Every resource you gather now will provide you with more resources to deal with crises in the future.

Su Li didn't want to entrust her fate to the dice.

Having figured things out, Zurich didn't stop the train, choosing instead to maintain its current speed and let it continue. "When enemies come, I'll meet them head-on; even if there are other races, my sword will not be ineffective."

After thinking it through, Su Li returned to the operations room and activated the support items given to her by Old Deng.

Because Zuli is a pioneer believer, he can obtain two items each cycle.

[High-speed repair material] *3

Damaged vehicles can be repaired; they will be destroyed after this exploration concludes.

The prop looks like a green bucket with a blue gel-like liquid inside.

[Temporary Water-Repelling Bead - Blue Star] *4

[After use, it temporarily forms a bubble containing sufficient oxygen to withstand external water pressure. Duration: 3 minutes. Destroyed after this exploration ends.]

One of these water-repelling beads was made for each person in the team.

"They're all useful. It seems the support from the God of Pioneers isn't random, but rather based on the world the player is currently in. Thank you for the God of Pioneers' gift."

This thank you to Su Li is heartfelt. Both of these items are very suitable for them. Especially the water-repelling bead, which can be life-saving.

After putting away the props, Su Li returned to the sofa to read. The whole night passed, and nothing happened until the next morning.

At 5 a.m., Song Mingyu, who was changing shifts, stopped the train because radar detected a mining area with mixed gold and silver deposits 3 kilometers away.

However, in the far distance, a giant conch shell was rapidly approaching Zuli and his companions, following the murky current.