The interior of the crystal pyramid is not a dark place as imagined, but full of white points of light as bright as a galaxy.

These white points of light, like stars, float inside the cavern, emitting a soft glow.

Under the illumination of the light, the situation in the cave was suddenly unobstructed.

After Lin Yu carefully observed for a while, he found that this cave was a structure similar to a secret room.

It is surrounded by crystals.

This is true even for floors.

In the very center of the floor, there is a large circular hole.

Because it was too far away, Lin Yu couldn't see the scene inside the big cave.

However, even so, according to Lin Yu's guess, this big hole should be related to the black vortex formed outside.

As for the white points of light in the seawater, they should be some kind of ancient and unknown plankton.

Other than that, nothing exists in this chamber.

And, it's worth mentioning that there are no undercurrents in this chamber and it looks very safe.

Completely and the violent undercurrent environment outside, forming two extremes.

"Go to the big cave in the very center, you should be able to go down there."

Looking at the scene in the picture, Lin Yu took the lead in commanding.

Hearing this, the staff carefully controlled the unmanned tactical mecha and flew over.

Soon, the unmanned tactical mecha came to the side of the big hole and activated the multifunctional weapon system.

As the metal parts on the arm continued to unfold, extend, and deform, a super-large diameter long-beam light slowly revealed.

"Peng!"

When the long-range light is activated, a dazzling white pillar of light bursts out directly, emitting a huge light at 360° without dead ends.

For a while, the entire secret room was as bright as day, and there was a white expanse everywhere.

It's very clear.

And the scene inside the big cave was also revealed under the illumination of the white pillar of light.

This large hole goes straight to the ground, and at first glance, it looks at least 100 meters long, like a straight passage.

And at the bottom, there is a huge mechanical platform.

In the center of the platform, there stood a large and hideous cannon muzzle.

Obviously, this should be the mid-level laser weapon that Lin Yu is looking for.

"Mr. Lin, this thing should be the key technology we are looking for, right?"

Looking at the huge cannon muzzle dozens of meters wide in the picture, He Weiguo's expression moved and asked.

"Almost, I didn't expect it to be the only thing left in the ruins, it's really ruthless."

Lin Yu nodded, with pity in his tone.

Originally, he also wanted to send people from above to find the other four submarine pyramids and explore the ruins inside.

It turns out that this is redundant.

Because it's been too long, there shouldn't be anything left other than black technology like mid-level laser weapons.

"In that case, let's go down first and see if we can remove this thing, and then let the Periscope transport it back when the time comes."

After confirming the goal, He Weiguo asked people to act immediately.

It's just that before the staff can start to control the unmanned tactical mecha.

In the picture, the originally calm huge cannon muzzle suddenly lit up with a white light.

Seeing this, Lin Yu suddenly felt bad, and hurriedly wanted the unmanned tactical mecha to evacuate.

However, before he could speak, the white light flashed away, and then soared into the sky!

The next second.

As the sea continued to boil, frantically bubbling with water bubbles, a terrifying column of air rushed out directly from the bottom of the sea, and almost instantly arrived in the secret room where the unmanned tactical mecha was located.

Under the sudden attack of this column of air, the unmanned tactical mecha was like a toy, and it was swept into the raging air flow without the ability to resist.

Eventually, the furious air current, wrapped in an unmanned tactical mech, roared into the huge black vortex outside.

"Zizizi~~"

The final image from the unmanned tactical mecha is a crazy rotating shot, and countless debris squashed by the pressure of the seabed.

For this sudden scene, except for Lin Yu, everyone was stunned and stunned.

No way, the white light just now was too fast.

They didn't react at all.

In the blink of an eye, the originally good unmanned tactical mecha was directly scrapped.

It was too sudden.

"Mr. Lin, what's going on? Why did the turrets on the bottom of the sea suddenly activate?"

After coming back to his senses, He Weiguo looked at Lin Yu for the first time, wanting to figure out what the problem was.

Others also looked away.

In the face of everyone's doubts, Lin Yu did not answer directly, but unhurriedly ordered the staff, "Let the other two unmanned tactical mecha enter the inside of the crystal pyramid respectively."

"This ......"

Hearing this order, the staff hesitated for a while and subconsciously looked at He Weiguo.

"Do as Mr. Lin says,"

He Weiguo waved his hand, his tone was indifferent, and there was no unhappiness.

Although he was in charge of the operation, Lin Yu was the real expert.

Professional things naturally have to be done by professional people.

Since Lin Yu said so, there must be a reason for him.

As a governor, he just needs to take and accept the advice.

What's more, this is Lin Yu, even if what he said is wrong, it's fine.

Isn't it the loss of two unmanned tactical mechs?

As long as Lin Yu is willing, he will use this thing as fireworks.

"Yes!"

After receiving the order, the staff sprang into action.

Soon, the two unmanned tactical mechs that were originally on standby in the undercurrent area instantly turned on the speed mode and flew towards the interior of the crystal pyramid.

Half an hour later.

Two unmanned tactical mechas, one on the left and one on the right, entered the interior of the crystal pyramid respectively.

In the picture, two different scenes are switched out.

On the left, the secret room that the first unmanned tactical mecha entered, and now in the large hole in the center, a terrifying airflow column is continuing to erupt.

On the right, there is a secret room that I have never entered, and the structure is exactly the same as the one on the left.

However, the large hole in the center of it is now calm.

Looking at these two completely different scenes in the picture, Lin Yu said slowly, "If I'm not mistaken, the mid-level laser weapon at the bottom of this crystal pyramid should have been semi-activated all the time."

"However, this state is very unstable, so it doesn't last long, and only a slight energy leaks out, which is the white light we just saw."

"This white light is the laser, its speed and power, I think everyone knows, I won't say more."

Speaking of this, Lin Yu paused and continued to explain: "The structure of the two big holes we see now is the same, but the only difference is that every once in a while, the energy leaked by the submarine laser weapon will be transmitted from these two big holes in turn."

"That is, when energy bursts from the hole on the left, the hole on the right is safe and vice versa."

"Of course, there is a time for this burst of energy, so as long as the time passes, you can let the unmanned tactical mecha reach the bottom of the sea and find the control center of the laser weapon."

When Lin Yu finished speaking, in the big hole in the secret room on the left, the energy that was still erupting wildly suddenly weakened and finally disappeared.

Meanwhile.

The originally calm big hole in the secret room on the right suddenly burst out of energy, the speed was very fast, and it was completely seamless.

"From now on, the timing is calculated, and then the duration of the energy burst, as well as the interval, should be compared by multiple groups, and calculated many times until the data is uniform before and after, without any error."

"Remember, there must be no errors, otherwise if the unmanned tactical mecha fails, it will be taken over by the Jiaolong mecha of Group B."

"If the Jiaolong mecha in Group B misses, what the consequences will be, I think you should all know it."

Lin Yu explained to the staff with a serious expression.

"Understood! We promise to get the job done! There will never be a single error!"

Feeling the meaning of Lin Yu's words, the staff looked stunned, and shouted loudly in a firm tone.

The unmanned tactical mecha failed well, and there were no casualties.

In the cockpit of the Jiaolong mecha, there is a pilot.

If it also fails, the people inside will be crushed into meatloaf by the terrifying pressure of the seabed like the Jiaolong mecha.

Even, because the Jiaolong mecha is equipped with the Suiren clan, it will also cause a huge underwater explosion.

This is a very bad thing.

So, for the next half hour.

The staff cheered up and began to observe and calculate and count all the data with a focused expression.

Finally, after countless deductions by artificial intelligence, a conclusion was drawn.

The duration of each energy burst is 3.747 seconds, and the interval is in the range of 0.012~0.015.

In other words, the unmanned tactical mecha must complete the steps of starting, sprinting, and stopping within 3.5~3.6 seconds, and finally arrive at the location of the laser weapon at the bottom of the crystal pyramid.

If it's 3.7 seconds, it's probably dangerous.

"Okay, now that the data has come out, then I'll leave it to you next, come on, I'm sure you can succeed."

Lin Yu smiled and encouraged.

Subsequently, under the command of He Weiguo, the staff nervously started the operation.

Unmanned tactical mechas, although they have brain-computer connections with staff, only need a single thought to convey instructions.

However, this also requires the staff to calculate in advance the signal delay of the unmanned tactical mecha, the delay of the program instructions in the body, and so on.

Although these errors are very small, less than 0.1 seconds at a time, there is no need to worry about them in normal times.

But now it's different, every millisecond is a race against time.

This requires a high level of concentration.

After a while, the staff adjusted their mentality and began to operate.

In the picture, as the first energy burst out from the secret room on the left, the unmanned tactical mecha in the secret room on the right shook violently, directly turned on the speed mode, and swooped down towards the bottom of the hole!

1 second!

The distance of the unmanned tactical mecha diving down reached 120 meters!

2 seconds!

The distance came to 260 meters!

At this time, it is already halfway to the bottom of the intermediate laser weapon!

3 seconds!

The distance is 390 meters!

At this time, the hideous muzzle of the cannon was already close at hand, and the diameter of dozens of meters wide was like a pitch-black abyss mouth, exuding a faint and cold glow.

3.67 seconds!

The unmanned tactical mecha finally came to the bottom, and its feet touched the crystal ground!

Meanwhile.

Just after the unmanned tactical mecha landed, a dazzling white light suddenly erupted, like lightning and thunder, and disappeared in a blink of an eye.

Then, the surrounding sea boiled, and the terrifying column of air rushed into the sky, going upstream, and hitting the top layer!

"Pretty!"

"Great, finally arrived safely!"

"Well done!"

Looking at the unmanned tactical mecha safe and sound in the picture, the originally nervous people couldn't help but cheer.

Lin Yu also nodded with a smile on his face.

With the lessons of the past, the second unmanned tactical mech will be much simpler.

It also managed to reach the bottom of the other side in a limited amount of time.

At the bottom of this side, there is also a mechanical platform, as well as a huge hideous cannon port.

Under the command of Lin Yu, two unmanned tactical mechs turned on the long-range lights and began the detection work.

The two lowest floors are very large, very empty and barren.

Aside from the mechanical platform in the very center, there is hardly any physical presence in the surrounding area.

However, it is worth noting that at the corner of these two spaces, there is a broken dark passage.

This secret passage is very hidden, filled with all kinds of green algae, like a green carpet.

If it weren't for the artificial intelligence calculation and analysis of the green algae in this corner, the number of algae in this corner is more than that in other areas, I am afraid that this dark passage may not be discovered.

"If I'm guessing correctly, the two areas should be connected, and below is the energy supply area of this laser weapon, as well as the control center."

Looking at the scene in the picture, Lin Yu made a guess.

After listening to Lin Yu's analysis, the staff controlled the unmanned tactical mecha to come to the dark passage and remove all the green algae covering it.

Suddenly, a crystal hole more than two meters wide appeared in the picture.

At this time, the surrounding area of the cave is crawling with thick green algae.

With the size of an unmanned tactical mecha, it is impossible to enter this secret passage.

Therefore, only the soil method can be used.

That is violent demolition.

Although this is at the bottom of the sea, the resistance is very high, but in the face of the absolute power of the mecha, the hole is easily widened.

Ten minutes later.

Two unmanned tactical mechs came to the end of the dark tunnel.

There was a ruined metal gate that was only a third of its size, and it was also covered with thick green algae.

These green algae hang down, forming a thick green gate.

Seeing this scene, Lin Yu's spirits perked up.

This is the first time that a physical object has appeared in addition to laser weapons.

Despite its dilapidation, it was enough proof that something was inside.

As Lin Yu watched intently, two unmanned tactical mechs passed through the metal gate and entered a super-large underground space.

After entering, what catches your eye is the huge energy device floating in the center of the body, and the thick energy pipes that link up and down.

This giant energy device, oval-shaped, a full hundred meters wide, is surrounded by four giant black rings that rotate slowly.

On the top of the ring, the seal is engraved with dense inscriptions, both in texture and shape, which makes people marvel at the perfection of its structure.

And underneath the power core, there are also many consoles around it, covered in green algae, which look almost scrapped.

"Hiss !!"

Just as everyone was immersed in the energy core device, a sharp strange cry suddenly sounded.

The next second.

A black shadow slammed into the back of the unmanned tactical mecha!

This sudden change made everyone present stunned.

The staff even subconsciously controlled the unmanned tactical mecha to dodge, and shone the long beam at the attacker.

Under the intense light, the attackers not only revealed their true colors, but also erupted in terrible screams.

It is a humanoid with hair all over its body, sharp claws, and a face that resembles a fish's gills.

It can be said that this peculiar amphibian is a completely new species that has never been found in the world.

Of course, except for Lin Yu, who had already seen it, everyone present was very surprised.

"Boy, what is this, the gills of a sharpfish, and it looks like a human?"

"Is this a creature in the ruins, it can breathe underwater?"

"I don't know if there's a chance to bring it back for analysis, this should be a good medical specimen."

"It's photophobic, you see, it's going crazy."

In the midst of everyone's discussions, the strange creatures stimulated by the bright light, as if they were crazy, screamed in pain, and crashed into the surroundings.

For a moment, the sea rolled over, and several of the surrounding consoles were destroyed, turning into a pile of scrap metal and crystal-like parts, wires, wiring, and so on.

"Stop it, it'll be in trouble if you let it touch the main console."

Lin Yu said calmly.

As soon as the words fell.

Before the staff could get into action.

Coincidentally, the console that this strange creature hit next happened to be the main console!

Drip!!!

With the sound of a piercing alarm, a striking red light suddenly began to flash on the main console.

Subsequently, in the very center, the energy core device that was originally floating in the air was instantly activated.

The four black rings began to spin wildly at a speed visible to the naked eye, and wisps of white light continued to overflow from the core, and then gathered together to form a white light cluster.

At first, the white light cluster is still mild.

However, in less than three seconds, as the volume of the white light cluster continued to expand, the originally soft white light seemed to turn into a burning white flame.

Hot! Boiling hot!

Under this unusually high temperature, the surrounding sea water, which was already warm, began to boil directly, and a large number of bubbles bubbled.

Gurgling Gurr~!

"Hurry up, get out of here, and come back when the laser weapons have subsided."

After seeing this scene, Lin Yu gave an order without hesitation.

Hearing this, the staff did not dare to delay, and directly asked the unmanned tactical mecha to turn on the speed mode and run in the direction from which it came.

Three seconds later.

The unmanned tactical mecha rushed out of the dark passage without the slightest pause, and went straight to the top of the crystal pyramid.

Since the laser weapon has now been completely activated, the law of energy explosion just now has been broken.

As a result, unmanned tactical mechs can fly without any scruples.

It's just that when the two unmanned tactical mechs came to the top floor and wanted to leave, they found that the undercurrent area outside the big cave still existed!

Moreover, the number of terrifying undercurrents is even more than at the beginning!!

Even if the unmanned tactical mecha has a speed mode, I am afraid it will take at least an hour to leave this hellish place with difficulty.

"It's over, it's useless to run again, this has become a blocked forbidden area, you can't get in or out."

"Unless we can find another entrance to the underground space, but it's too late now."

Lin Yu shook his head helplessly.

Since that strange creature will appear here, it means that there must be other entrances that can be unaffected by the undercurrent area.

Otherwise, the strange creature wouldn't be able to get in.

However, I had just wasted a lot of time running out of the ground, and now I wanted to go back, it was impossible.

After listening to Lin Yu's analysis, the staff gritted their teeth and turned back.

However, when the unmanned tactical mecha came to the bottom, the mechanical platforms in the original two independent areas merged at some point, forming a huge cannon port nearly 100 meters wide!

Immediately afterward, an extremely bright white light began to slowly light up from the mouth of the hideous giant cannon.

In an instant, a white sun seemed to rise from the bottom of the sea, and terrifying energy began to erupt, exuding extreme light and heat.

Rumble Rumble Rumble ~~!!!

With a loud roar, the entire crystal pyramid began to shake violently.

The strong tremors, like the eruption of an undersea volcano, shook the ground and shook the mountains, and the sediment flew everywhere.

And at a certain moment, the white light seemed to have reached a certain critical point, and directly turned into a 100-meter-thick pillar of blue and white light, rising from the top of the crystal pyramid, breaking through the sea and reaching into the sky!

Under this pillar of optimus light, the huge black vortex above the crystal pyramid was instantly dispersed, and the countless debris inside were all wiped out!

On the sea level, the wind was fierce, the waves were rolling, and the mist was flying, setting off a series of earth-shattering waves.

In the atmosphere, a vast sea of clouds was torn apart by pillars of blue and white light, revealing a vast and deep blue sky and glittering stars.

For a time, this sea area was full of visions, huge momentum, and very spectacular.

At the same time.

The scene of the two unmanned tactical mechs disappeared.

The surrounding magnetic field has undergone a terrifying geometric change, and the command center has been unable to contact all the units in the Bermuda Triangle.

"Mr. Lin, the Jiaolong Mecha is so far away from the Crystal Pyramid, nothing should happen, right?"

Faced with this sudden situation, He Weiguo frowned, turned his head to look at Lin Yu, and asked.

Lin Yu took a sip of tea calmly, and said unhurriedly, "Don't worry, only the unmanned tactical mecha should be wiped out."

"However, the current movement is too big, and I am afraid it will not be long before it spreads around the world."

"So, when the laser weapon subsides, you better bring it back as soon as possible, after all, it's far away from us, and if something happens on the way, it will be very troublesome."

"Of course, you don't have to worry about whether the laser weapon will explode again, because it has just exploded and has used up all its energy."

"Plus, it's been so long, and the systems should have been scrapped a long time ago, and now that this final blow has been released, it's basically a pile of broken copper and iron."

"As long as it's not dismantled and smashed, it can still be repaired and used when it comes back."

As he spoke, Lin Yu finished his last sip of tea, got up, and said goodbye to everyone.

"Alright, the exploration of the Crystal Pyramid is basically over."

"I'll leave the rest of the finishing work to you, and I'm still busy developing Luanniao, so I'll go first."

After speaking, Lin Yu waved his hand, and under the eyes of everyone, he left the command center without looking back.

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Chapter 268: Exploration End Free Read.