It's a world so quiet that it can almost be called dead silence, the water flows slowly, and I don't know where it came from or where it's going. There were not a few waves on the surface of the water, and there was not even a trace of fish swimming.

Suddenly, a pair of blood-red dots of light appeared in the dim water, and he seemed to be frightened, swimming in a panic, and he didn't know the direction.

It's noisy, it's loud! There was no sound, but his brain was about to crack open with noise, was it a companion? But why was it so strange, why was it so ...... Resounding.

Soon, pairs of eyes lit up, and they looked at each other, swimming and gathering together, but they could not communicate. All the sound waves they emitted were covered by the powerful sound waves.

Could it be that a whale has inadvertently broken in? A shadow waved the trident in his hand and asked his companions if they wanted to hunt it.

While they were arguing, the first shadow pointed sharply at the depths of the water, where there was no bottomless bottom, and a huge object was rushing towards them at a rapid pace......

Half a minute passed, and both the commander and the doctor were in a state of bewilderment, turning the periscope in vain, but they could not see anything at all.

"I think we're in some subterranean space, except for the underwater cavern, which is supposed to be a confined space, and the air pressure makes it impossible for the sea to fill it. The doctor said after a moment's thought.

"And is this your destination?" asked the commander, his face full of shock.

"I guess that's it. The doctor pushed the periscope back and was about to climb up the shaft, "Do we have to go up and have a look?" ”

"Wait!" the commander grabbed the doctor's leash, "we don't know what's going on outside, and if it's really an enclosed space, as you said, then the air is probably not breathable." If you have something like carbon monoxide or ammonia, if you go out in a hurry, you will die a miserable death. ”

"There seems to be a little bit of truth to what you said. The doctor nodded, letting go of the ladder, "In that case, let's dive below the surface and launch a torpedo." ”

"What?" the doctor thought he had misheard.

"If the flame of the air is normal after a normal explosion, it means that there is oxygen, and if there is no explosion, it means that there is no combustible gas. ”

"But if the gas really explodes, then we won't be able to escape even under the water!"

"Luck is often part of strength, right?"

"Well, send someone out, go out and shoot a shot, and if it turns out like you just said, then it's fine. ”

"You're sending you to death, who's going to go, you or me?" the doctor frowned, "And if there's a bombardment, won't we be able to escape?"

"The submarine will go underwater first, and even the pressure of the explosion will act on the water, but with so much water buffering, the chances of us getting through it are much higher. ”

"As for who's coming," the commander suddenly shouted, "Neil!"

A man of short stature came running over and said, "Chief, what do you command?"

"This is Neil, the boatswain on this boat, and he is not very tall, but he is a good man with a gun, and he admires the American West

Cowboy, practice a quick marksmanship. ”

After the introduction, the commander briefly explained the current situation to the boatswain, including what was to be done and the danger that existed, and the neil was obviously a young man of good blood, and agreed without any hesitation, without even waiting for the commander to ask him.

"You have to think about it, it's really dangerous. The doctor was a little stunned and hurriedly said.

Neil smiled, "We're on an underwater mission, and it's not dangerous to sail any of them, but we always come back victorious, aren't we, this mission is nothing more than another 'Dignity'." (The battleship Dignity was sunk by the U-21 in 1915.) ）

The doctor didn't say anything more, and shook the commander's hand very solemnly, "Return victorious." ”

The Commander whispered something to Neil again, then went to the equipment cabinet and pulled out a wetsuit and handed it to Neil.

It's impossible not to be nervous, Neil had a grim face after looking at the situation outside with his periscope, but it didn't get in the way of his mission, he quickly put on his rubber wetsuit and put on a helmet that was almost shoulder-width wide.

"How are you going to let him out, if you can't open the hatch. The doctor asked with some curiosity, this submarine has no more hatches.

After tying Neil's helmet harness, the commander slapped it on the round helmet and told him that it was done, "If you want to get out, you can only ask our boatswain to do a torpedo once." ”

Several people arrived at the torpedo chamber, and under the shocked gaze of the doctor, the end cover of the torpedo launcher was opened, and some water flowed out, which had seeped in when it had just reached the extreme depth.

"The torpedo launcher is too small, I'll put the breathing apparatus and communication device in another torpedo launcher for you to launch, and you have to find it as soon as you get out. ”

The boatswain wore a large iron helmet and spoke so humming that he couldn't hear it at all. He gestured a thumbs up and pinned a Luger P08 to his waist, and he was about to experiment with this elegant and legendary pistol.

Then, with the help of the two of them, he managed to get into the torpedo launcher, and even though he was small, it was still very difficult to get into it in a diving suit, and it was the combined efforts of the commander and the chief engineer that forced him in.

The commander placed the breathing apparatus into another torpedo launcher in parallel, and at that moment the water intakes on the submarine's flanks reopened, and the U-boat began to dive slowly.

"Is this really possible?" the doctor was a little skeptical, what was the difference between putting a person in a cannon and firing it,

"Don't worry, we're not going to pressurize the torpedo launchers. The commander knocked on the end cap of the Fish Thunder launcher, told the boatswain to get ready, and after hearing the reply of two knocks, he opened the front cover of the tube.

Then, unable to do anything more, the U-boat began to dive rapidly, trying to survive the possible explosion. All they have to do now is wait quietly.

Neil was indeed a brilliant sailor, and as soon as the sea filled the entire tube, he slammed his feet on the tail cap and sprang out of the tube.

But this was only the first step in success, as he grabbed the edge of the launch tube and waited for the respirator, the sealed helmet providing him with breathing for a very short time.

The pressurized voice sounded, and Neil hurriedly turned to one

While dodging, as the launch tube cover was rushed open by the tremendous pressure, the breathing apparatus shot outward like an arrow, flew out of the sea for several meters and fell, and finally floated there.

Neil slammed into the submarine's hull and swam in that direction, placing a cold light rod on the side of the breathing apparatus that glowed a faint blue light in the dim waters.

Fortunately, the submarine was not too far from the surface of the water, and Neil had already obtained a breathing apparatus when the feeling of lack of oxygen first appeared.

With the light of the cold light rod, he connected the two tubes of the breathing apparatus to the diving helmet and exhaled a long breath very extravagantly.

That's when he had the opportunity to take a hard look at his surroundings. Looking out through the mask of his diving helmet, he couldn't see anything except through the not-so-bright blue light for a few meters around him.

How big, what's there? I can't tell the difference.

Suddenly, Neil shivered for no apparent reason, and a chill spread down his spine to all parts of his body. Was the water too cold?Neil realized that the water here was so cold that the chill quickly penetrated the rubber wetsuit, and it was bitterly cold.

"Damn, forgot to do a warm-up. Neil cursed, reaching for Ruger behind him, he couldn't stay in this temperature for too long, once he had cramps or hypothermia, it was over.

Under this touch, it was empty, and there was nothing on the back waist. Neil's heart was half cold, when did he lose it, did he touch it when he got out of the launch tube?

He angrily slammed his fist into the water, there was no gun, did he take off his helmet and risk himself?

As his body was rapidly getting colder, Neil carried his breathing apparatus forward and looked around with the help of the cold light. I don't know why, he always feels that he is not alone here, but except for the rippling of the water caused by the diving of the U-boat, and the sound of his own paddling, he can't see or hear any other movement at all.

Neil's hand touched the side of the respirator in the shape of a gun, but it was surprisingly large.

Neil pulled it out, which was a flare gun, with two spare rounds on the side of the gun. Neil let out a sigh of relief, using flares might be a little more effective than Ruger.

He checked the reload in the chamber, then flung the water out of the barrel, took a deep breath, pointed the muzzle of the gun at the top of his head, and pulled the trigger fiercely with his already numb fingers.

A few seconds passed, and the intense glow from the burning of magnesium and aluminum made Neil's eyes feel bright even though he closed his eyes. Didn't explode?Neil immediately opened his eyes, and he was taken aback by the sight of no money.

Illuminated by the intense light of the flares, he could clearly see that about half a nautical mile in front of him, there was a huge island, and a wide staircase gradually spread from the water to a very high place.

Neil was shocked for a long time before he reacted, and hurriedly used the communicator to contact the doctor and commander in the U boat.

The two of them were already a little anxious waiting, and only after hearing Neil's voice did they breathe a sigh of relief, and hurriedly asked him what was going on outside.

"I thought, sir, you'd better come up and see for yourself. "The light of the flares has begun to dim, and the amazing buildings are slowly disappearing into the darkness.