This planet has been abandoned for more than a decade, and everything is a decade ago. And because of the war, this rusty little submarine turned out to be the best submarine, and the engineers had to harden it.

The renovation project lasted for three hours, and Yu Yifeng finally couldn't wait anymore and directly dialed the phone of the engineering department.

"Is the performance still not up to par?"

He frowned when he saw the various data tables sent by the engineers on the screen.

"Yes, the submarine is in disrepair and many have lost their functions! If you dive 500 meters, it is estimated that you will not be able to withstand the pressure! We don't have enough industrial systems on this planet, and the current pace of transformation alone is too slow. ”

"And the planet doesn't have enough matching parts, and there's no material like superalloy......," the engineer across the screen said in embarrassment...... He waved his hands, and it was difficult for a good woman to cook without rice.

"So be it, the submarine can dive a few hundred meters! ...... not even necessary."

Yu Yifeng waved his hand, he understood the plight of the engineers, but he didn't have enough patience to wait any longer.

No one knows when the crisis will appear, and all we have to do now is race against time!

A quarter of an hour later, more than thirty elite soldiers and more than twenty scientists were urgently called up and embarked on a transport ship, along with the old submarine.

There is no way, to run from the northern hemisphere to the southern hemisphere, you must use a spaceship, otherwise you don't know how long it will take to swim slowly with a submarine, ten days and half a month are possible! And this dilapidated submarine is estimated to not be able to swim so far......

It's a little risky, but the risks are manageable. After all, the flight in the atmosphere is still not very conspicuous, just like a normal plane, no big deal.

The group of soldiers was almost completely armed, and they didn't even eat lunch, so they could only hastily deal with things in the spaceship.

And many scientists are excitedly pointing at the ocean, they have never seen such a miraculous phenomenon:

The spacecraft flew almost 10,000 meters above sea level. Through the glass window, a green ribbon appeared throughout the ocean, guiding them in the direction.

I have to say that the entire ocean is the body of "Ling", just like its own limbs...... It's still a little difficult to get her to abandon here and follow the people on the ship.

But...... Having said that, it is precisely this kind of newborn time that there is the possibility of "abduction". If you wait until you are older, it will be even more difficult......

Seeing the spaceship in the sky following her, "Rei" seemed to have a lot of fun, but she still remembered her promise and didn't take people around in circles.

After about three hours, the ship's speed slowly slowed down and it fell from the sky.

After gliding on the water for some distance, this flight base floated on the surface like a ship.

"Is this it?" Yu Yifeng asked at the ocean.

A small ball suddenly appeared on the surface of the sea and jumped up and down to nod its head.

"Unmanned submarines are devolved!"

With an order, thirty small unmanned submarines were released from the spacecraft to explore this part of the ocean.

This is a shallow sea area, not very deep, the maximum depth is only about 200 meters, and the shallowest depth is less than 10 meters, which also makes everyone breathe a little sigh of relief...... That battered submarine doesn't have to be used.

Inside the spacecraft, everyone is glued to the advancing footage of the unmanned submarine, which is fed back by a camera mounted on the front, each screen representing a submarine.

These unmanned submarines are only one meter long, cannot carry people, have a small power plant, and do not move fast at a speed of about 30 kilometers per hour.

When it was first designed, these were mass-produced consumables, and they couldn't be too high-end. When people reach the current level of interstellar civilization, they still have to follow industrial economics, and conventional aluminum alloys and titanium alloys are still used, and it is impossible to use new superalloys for everything......

Along the way, there are all kinds of strange sea creatures everywhere. Biologists are not idle these days, they have captured a large number of specimens, and they are not surprised by these things.

Everyone's eyes widened, staring at the screen, trying to find clues about the alien base.

The atmosphere slowly became tense......

"Look, look there!"

One soldier shouted in surprise.

Dozens of pairs of eyes Qi Sensen looked over, and gradually, people saw some clues. The water here is 160 meters deep, and the bottom is something similar to a coral reef. But it is clear that the reef has been crushed by some heavy material and has not yet been restored......

According to the detailed calculations of scientists, the area that was dumped was almost the size of a flying saucer!

That is...... That flying saucer, once parked here!

"Let's see if there are any artificial structures!" Yu Yifeng immediately commanded.

However, after the surprise, people were quickly disappointed, as there were no other man-made structures other than corals.

"Wait a minute, these coral-like creatures are not slow to reproduce, is it possible to bury alien structures? After all, the alien flying saucer has been here for 30,000 years......"

A scientist exclaimed urgently: "After 30,000 years of work, the terrain has long since changed, and everything may be hidden!" ”

This is very possible, but it is too long-ago, "Ling" has no self-consciousness and no memory, and she doesn't know it for a long time.

People can only search back and forth with unmanned submarines unwillingly.

Yu Yifeng frowned and thought, such a large ocean, even if there is something hidden under the bottom of the sea, it is difficult for people to find out in a short period of time, is it possible to use a machine to dig a hole in a large area.

He looked at the little green balls that were beating in the ocean, and suddenly he had an idea.

Ignoring everyone's discouragement, he put down a kayak and jumped in, getting up close and personal with the ocean.

He played with the ball for a while, then said, "Can you help us?" Dig a few holes in the bottom of this ocean and see if there's anything really hard down there...... Metal, or whatever......"

People's large machines can do this, but large-scale drilling is quite time-consuming, and it is better to use this ready-made helper.

It took a long time to communicate...... The temperature inside the power armor was quite appropriate, but Yu Yifeng was tired and sweating profusely...... This feeling is like instructing a baby to help you with something, sometimes it doesn't work, everything depends on the mood of the other party.

The ball jumped a few times, and at first it didn't quite understand, until Yu Yifeng persuaded him for a long time before he reluctantly agreed.

The sea had been quiet for a while, and after only a few minutes, it began to beat happily again, dragging the kayak in one direction.

There was a surprise in everyone's hearts, could it be ...... What was really found?

It is a shallow area six kilometers away from the flying saucer, and less than ten meters from the sea. On closer inspection, people finally found the clue......

One...... Square!

Although it is buried by a thick coral reef, a square iron sheet is exposed inside! There may be a man-made structure down there!

"Can you clean it up for us, okay?"

Yu Yifeng was both surprised and a little embarrassed, and now she seemed to be asking for everything...... After all, letting "Ling" help can solve it quickly and well, and he can only be cheeky and come over again.

The communication between the two sides was not an easy task, and after directing for a long time, Ling was not very happy to agree to Yu Yifeng's request......

What's the matter with this guy, always letting himself dig in the mud? The conjured green ball bounced unhappily.

Through the camera of the submarine, everyone saw what seemed to be an invisible hand playing with the ocean, and the hard coral-like creatures on it began to disintegrate rapidly. This can't help but amaze scientists.

(The following anti-theft ...... ）