The knight passing by Marvel

Chapter 774 San Juan's Cree City

Multispectral terrain scanning, artificial satellites manufactured with Stark Industries' technology, are sufficient to complete, but Stark's troublesome use of miniature submarines to carry drones to Puerto Rico is the biggest reason for the limitations of artificial satellites.

Every artificial satellite has a fixed orbit. Changing orbit is a risky thing, and there is a risk of colliding with other artificial satellites if you change orbit hastily. Fortunately, military artificial satellites are all secretly launched and secretly operated. Private companies like Tucker are not enough to conduct secret launches.

Therefore, Stark Industries' satellite orbit change must notify NASA to adjust so many artificial satellites to Puerto Rico, but anyone with a little brain knows that there are things Stark is interested in, so Stark can only let his satellite follow Fixed track, when passing through Puerto Rico, scan.

Therefore, he urgently dispatched drones to scan Puerto Rico with ground penetrating radar. Interfere or even destroy.

With the arrival and continuous scanning of drones, a large amount of data was transmitted to the Avengers Building through Stark Industries' communication satellites, processed by Jarvis, and gradually filled into the underground structure map of Puerto Rico.

The first thing to be discovered was Cape St. Philip Castle. At a depth of 120 meters underground, a hollow appeared in a long strip, extending from north to south, followed by more hollows, overlapping up and down, obviously more than one layer of hollows.

(One hundred feet in the TV series is like a joke. It is so shallow that a slightly better ground-penetrating radar can reach it, not to mention being soaked in sea water, I am afraid it has been flooded long ago, and there is a deep sea port there. The depth Just over a hundred feet.)
The nearby drones came to 'support', conducted precise scans online, and obtained a clearer map. Tunnels criss-crossed, like three-dimensional spider webs. With more and more drones added, this The size of the underground map is also getting bigger and bigger.

Until the entire old San Juan city was included, the margins had not yet been detected. Such a huge scale shocked Stark, but he was also quite puzzled. There are airports and ports built there, which will definitely affect the underground structure. Why didn't you discover this huge underground city after conducting detection?
A hundred drones 'swept' across San Juan and its surrounding waters, clearly presenting every detail of this huge underground city on the holographic projection.

"We found it." Stark whispered to himself, walked to the holographic projection step by step, carefully looked at this huge underground complex that was still expanding, frowned slightly, and said : "It doesn't seem to be underground?!"

"Huh? Isn't it underground?" Greer didn't know, so he walked over, looked left, right, up and down. Isn't this underground city [-] meters deep underground, can it still be floating in the air?
Stark raised his hand to shrink the dungeon model several times, allowing the topographic map of the surrounding sea area to come into view, then took a few steps back, turned his head to look at Greer, and said, "It was built on the mountain."

"On the mountain?" Greer was taken aback, and then walked to Stark's side. Looking from Stark's direction, if you block the upper part and only look at the underground part, it does look like a mountain when compared to the slope of the seabed. .

"That's right, this is a mountain, which can explain why many of the buildings below the city are not connected to the ground, and are in the shape of a pyramid. If it is an underground city, it is an inverted pyramid with a large top and a small bottom."

When Stark said this, Greer also saw the weirdness. Many buildings did not have passages leading to the ground. Instead, there were tunnels connected to other buildings at the bottom.

The city is built from the ground up, the higher the number, the fewer the number, and if you dig down from the ground, it should be the other way around, the deeper the number, the fewer the number.

So if the bottom layer is the ground, it makes sense. These intricate tunnels are actually roads or transportation pipelines?
But this has created a new problem. If San Juan used to be a mountain, it means that the Caribbean Sea may have been a basin before, and the area of ​​the Atlantic Ocean in those days would be much, much smaller than it is now.

This.
Has the sea water risen so high in thousands of years?
"Jarvis, if all the Antarctic ice melts, how much will the sea level rise?"

"Twenty to thirty feet." Jarvis answered Greer's question immediately.

"Seven to eight meters." Greer looked at the tall 'mountain' carrying the dungeon again, and began to calculate how many Antarctic ice sheets could be submerged to the top of the mountain: "How high has the sea level risen? "

"If the American continent sinks, then the inland plateau in Asia will definitely become a plain where you can see the sea." Stark said casually, and began to fiddle with the structure map of the dungeon with both hands to see where drones are needed Perform supplementary detection.

"...So the continent of Atlantis sank, causing the sea level to rise and flood the city?" Greer thought of the legendary ancient country at the bottom of the Atlantic Ocean, and he didn't know who was proposing it purely on speculation without any evidence. It came out and spread like this.

Many legends and related works have been born around this sunken continent, but now that Stark has said this, Greer thinks he knows something, anyway, before he came to this world, Marvel did not officially mention that there is such a country in the sea, and Thanos has finished fighting, and he has not seen it.

Stark said without looking back, "Maybe."

"Atlantis." Greer smacked his lips, and looked at this ancient city submerged in sea water. If it was really built on a mountain, the global sea level would rise too high.Even if there was a sunken continent of Atlantis, how big would it be to make the sea level rise like this?

While talking and laughing, hundreds of UAVs equipped with ground-penetrating radar combined with artificial satellites completed the mapping of the underground structure of San Juan, and then dispersed to start the multi-spectral terrain of Puerto Rico, an island with an area of ​​more than 8000 square kilometers. Scanning works.

This huge city buried underground and in the sea for an unknown amount of time finally took off its veil and showed its true face to Stark and Greer.The scale of this underground city is beyond imagination:

It has ten floors up and down, more than 3000 meters in length and width, and covers an area of ​​nearly ten square kilometers. The tallest building is 80 meters high. Only one-third of the area is under the city of San Juan, and the rest is in the sea. below.

When the city was fully formed, Greer, who was well-informed, and Stark, who was full of life experience, were all shocked. The scale of this underground city was actually larger than the main city of San Juan on the ground. Such a huge city Once the underground complex is exposed, it will definitely shock the world. Pyramids and hanging gardens are all scum in front of it.

You can see the whole thing at a glance. Only from this huge underground city, people can feel the advanced technology of the Cree people. Such a huge underground city built thousands of years ago can be preserved to this day. It is definitely a masterpiece of architecture. Miracle on.

Stark turned his head, pointed at the huge underground city, with joy and astonishment on his face, and said, "This shouldn't be a laboratory, right?"

"Obviously." Greer walked forward, looking at the densely packed buildings and the tunnels intertwined with spider webs in front of him, he didn't know what words to use to describe this huge underground building complex, as expected, if you don't watch TV carefully, you will be scared to death , and no matter how good the settings are, if the funds are not enough, it will not be possible to shoot a majestic picture.

In his vague memory, this underground city is nothing more than a few earth caves and an obelisk activation room surrounded by automatic stone-like doors, but now
There are [-] buildings of different heights, and they are connected by tunnels. They are miniaturized models with a width of nearly two meters and a height of nearly two meters. They are densely packed, and can cause dense disease patients to attack and die.

The most shocking thing is that the city has remained the same after so long.From the topographical map, there are so many buildings and tunnels, but there is no sign of collapse, which means that the city has not collapsed after thousands of years of underground and soaked in sea water.

This is a city, not just one or two buildings piled up with a lot of stones, which can be preserved to this day, not to mention other things, just because of its sturdiness and durability, it is [-] roads away from human beings.

Stark's eyes became even hotter. With such a well-preserved building complex, the contents inside should also be preserved intact. If a central computer, server, etc. can be found, it will definitely be a gift from heaven.

Greer brought back a tablet with data before, but the more branches the science tree goes up, the more data increases exponentially. Does it mean that you can make a product with data and design drawings, even if you have It takes a long time for the production line to produce qualified products.

This is like knowing the mass-energy formula and the structure of the atomic bomb, can an atomic bomb be created?Even if enough materials are given, random experiments cannot be done in a short period of time. Therefore, those alien materials are basically read as textbooks and cannot be converted into finished products.

But if you find an alien processing factory or something in this underground city, it will be different. The performance of the equipment determines the quality of the product. The gap between the old-fashioned hand-operated machine tool and the six-axis CNC machine tool will be filled if you throw Mount Everest into it. dissatisfied.

I feel very excited just thinking about it.

Stark can't wait to search this underground city to see how many surprises await him.However, it is impossible to leave immediately. It is necessary to formulate a complete plan and make a list of required materials before leaving.

But Greer was thinking about the danger of this underground city. It seems that in the TV series, this city is engraved with alien runes. A black-skinned strong man will go crazy when he touches it. , Will there be any anti-theft mechanism and other systems?
Greer told Stark about his worries and worries, and Stark nodded in agreement. His Avengers Building and Avengers Base are equipped with various security measures, and important departments of this underground city must also have security measures. Although similar measures have been used for thousands of years, if the city can be preserved intact, will these institutions still be in operation?

"There is also signal shielding." Greer racked his brains to think of another problem. This underground archaeology must use drones, but once Jarvis' signal is blocked, he will be caught blind. The Avengers can only travel through this underground city in a year of the monkey.

Stark nodded, fixed his eyes on the structural map of the underground city, and said, "Go in and have a look first, and then decide how to explore later."

"Then I'll go." Greer volunteered. The less people who know about this archaeological work, the better. Otherwise, if it is leaked out, things will become extremely troublesome, and the entire Avengers Alliance will not be very popular. You know, there is also magic.

"Let's go tomorrow, I'll make you some small toys tonight." Stark waved off the holographic projection of the underground city. Such a large city cannot be explored in a day or two, and it may also be made by aliens. Yes, you have to step by step, push forward a little bit, and rush forward, it is very likely that the haste will waste the speed.

"No problem." Greer agreed immediately, looked at Stark with sunken eyes, hesitated for a moment, and said, "Maybe you need to take a long vacation for yourself."

"Huh?" Stark, who was about to go back to the room, was taken aback, turned his head, and said in surprise: "Little Pepper complained that I haven't managed the company for a long time."

"You know I'm not talking about that."

The smile on Stark's face slowly disappeared, and after two seconds of silence, he said, "But we don't have much time."

Greer is also speechless. If Stark was worried that aliens might invade the earth, the news from another universe and Greer's brought back from the universe is a certainty. Thanos will definitely Invade Earth for Infinity Stones.

Stark's pressure is greater than in another universe, because the earth is facing a war that cannot afford to lose and has no room for compromise and negotiation, but the hope of victory is so slim that it is almost impossible to see.

Thanos is the overlord of the universe, but what about the earth?He has just stepped into the home planet, and he is still far away from colonizing the alien planet. No matter how hard he is, he can't stand it.

Silent, still silent, I didn’t know what to say at all, and finally turned into a sigh, each turned around and walked to where they were going, one went to the laboratory, worked overtime to make some tools for early exploration of the underground city, and the other went home Take a rest and go to the underground city energetically.

Outside the window, the moon was dark and the wind was high, and most of the earth was shrouded in darkness. In a room of the Pentagon, Steve Rogers, whose back was painted black, was standing in the room, with several unconscious people lying at his feet. A rapidly shaking image was projected on the screen, and finally the picture was frozen at a man wearing ugly armor with a few guns pointed at, and then stretched out a hand and pulled off the mask, revealing a face bleeding from all seven orifices inside.

"Bucky!!!"

(End of this chapter)