As a free state, Puerto Rico is almost free-range, the federation is basically ignored, there is no policy support, and the economy here is quite poor. Watermark Ad Test Watermark Ad Test

After all, it is an island far from the land, with no mineral resources, and there is no advantage in developing industry; and it is not a transportation artery on the sea, nor can it develop brilliant commerce; Puerto Rico retains many castles built during the Age of Discovery, including tropical landscapes, beaches and lush coral areas, which attract a large number of tourists from all over the world every year.

Puerto Rico is close to the equator, where the average temperature is twenty or thirty degrees all year round, and tourists wearing short sleeves, sunglasses, and backpacks abound here, and Grell and Daisy came to San Juan as tourists to make up for the date they owed before.

The two walked hand in hand to the warm breeze on the narrow streets, looking very leisurely, although the two often went to different countries, but rarely visited the local beauty. The last time I had such a pleasant tour was in London before the overlap of the Nine Realms, but I strayed into a spatial rift and accidentally arrived in the Heim Underworld.

Although they look like they are walking, the two of them are still down to business, with Grell informing him and Stark of the underground city, which is likely a creation of the Cree era, and Daisy 'sharing' the earth-shattering 'facts' that Jia Ying told her in New Inhuman Village.

"What? Do you have the blood of an ancient Inhuman leader? Greel's eyes were so startled that he almost missed the sunglasses on the bridge of his nose.

Daisy gave a helpless expression and said, "When I knew, the expression was the same as yours." ”

"Uh..."Grell felt a pain in his head, how could it be involved in the ancient era, who is this leader of the Inhuman race who dared to confront the Kree people that Jia Ying said?

Apocalypse or Hive?

The problem of copyright made Marvel have to give up mutants and focus on Inhumans, and it didn't make a difference. To this end, the strongest Apocalypse in the Ancient Period was replaced with a hive of the Kree experiment, and the result was... It's hard to put into words.

He still remembers the hive, the main reason is the hive's parasitic ability, which is simply disgusting, and completely out of the concept of humans, but a collection of parasites, the head is full of super beasts, which can release parasites to devour humans to feed themselves, and can also use parasites to control other aliens, and I feel goosebumps all over my body when I think about it.

As for the apocalypse, it is normal to use 'technology' to transfer their souls to other people, to continue their lives and obtain the abilities of the other party, and to greatly enhance the ability of mutants, as well as the ability to influence the will of mutants.

The two characters are very similar, but if what Jia Ying said is true, they have the blood of the ancient Inhuman race, it is likely to be the apocalypse, otherwise, it is impossible for a group of parasites to leave offspring, and they will only control or devour the place.

Grell shook his head and shook the thought out of his mind, no matter who he was, it was all a matter of ancient times, and it was the key to focus on the present and the future, and solve the underground city.

"On the mountain?" Greer was stunned for a moment, 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, the slope of the seabed does look like a mountain.

"That's right, it's a mountain, which explains why many of the buildings below this city are not connected to the ground, in the shape of pyramids, and if it's a dungeon, it's an inverted pyramid with a big top and a small bottom."

Stark said this, and Grell also saw the strangeness, many buildings did not have a passage to the ground, but had tunnels at the bottom to connect with other buildings,

Cities are built from the ground up, and the higher they are, the fewer they are, and if they dig down from the ground, they should be upside down, and the deeper they are, the fewer they are.

So if the bottom layer is the ground, it makes sense, these intricate tunnels are actually roads or transportation pipelines?

But this raises a new problem: if San Juan was a mountain in the past, it means that the Caribbean Sea may have been a basin in the past, and the Atlantic Ocean would have been much, much smaller than it is now.

This...

Has the sea risen so high in thousands of years?

"Jarvis, how much will the sea level rise if all the Antarctic ice melts?"

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

"Seven to eight meters...", Greer looked at the tall 'mountains' that carried the dungeon, and began to calculate how many Antarctic ice sheets would be needed to submerge to the top of the mountain: "How high has this sea level risen?" ”

"If the American continent sinks, the inland plateaus of Asia will definitely become plains with a view of the sea." Stark said casually, and his hands began to fiddle with the dungeon's structural diagram to see where the drones were needed for supplemental detection.

“... So it was the Atlantis continent that sank, allowing the sea level to rise and flood the city? Greer thought of the legendary ancient country at the bottom of the Atlantic, and he didn't know who had come up with it without any evidence and on pure speculation, and it spread.

Around this sunken continent that I don't know if there is, a lot of legends and related works have been born, but now that Stark says this, Grell thinks he doesn't know something, anyway, before he came to this world, Marvel didn't officially mention that there was such a sea China, Thanos had finished fighting, and he didn't appear.

Stark said without looking back, "Maybe." ”

"Atlantis." Greer smacked his lips, looking at this ancient city submerged by the sea, if it was really built on a mountain, then the global sea level rise would be too high. Even if there were a sunken continent of Atlantis, how much would it take for the sea level to rise like this?

During the conversation, 100 unmanned aerial vehicles (UAVs) equipped with ground-penetrating radar and artificial satellites completed the mapping of San Juan's underground structure, and then dispersed to carry out multi-spectrum topographic scanning of Puerto Rico, an island with an area of more than 8,000 square kilometers.

This huge city, which has been buried in the ground and in the sea for an unknown amount of time, has finally taken off its veil and revealed its true face to Stark and Greel. The scale of this underground city is beyond imagination:

It is more than 10 floors, more than 3,000 meters long and wide, covering an area of nearly 10 square kilometers, with the tallest building reaching 70 or 80 meters high, and only a third of the area is below the city of San Juan, and the rest is below the sea.

When the city was completely formed, both the well-informed Greer and the experienced Stark were shocked, the scale of this underground city was even larger than the main city of San Juan on the ground, such a huge underground complex, once exposed, it would definitely shock the world, what pyramids, what hanging gardens, in front of it are scum.

Just from this huge dungeon, people can feel the advanced technology of the Cree people, and it is an absolute architectural miracle that such a huge underground city built thousands of years ago can be preserved to this day.

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

"Obviously." Grell stepped forward, looking at the dense buildings and cobwebbed tunnels in front of him, he didn't know what words to use to describe this huge underground complex, sure enough, watching TV will be scary to death, and no matter how good the setting is, there is not enough money to shoot a magnificent picture.

In his vague memory, this underground city was just a few earth caves, and an obelisk activation room surrounded by a stone-like automatic door, and nothing else, but now...

There are 200 buildings of different heights, connected by tunnels, and the miniature model of the length, width and height of nearly two meters is densely packed to make patients with dense illness die.

The most shocking thing is that after so much time, the city remains the same. Looking at the topographic map, there is not a single sign of collapse in so many buildings and tunnels, which means that the city has not collapsed for thousands of years underground and immersed in seawater.

This is a city, not one or two buildings piled up with a large number of stones, which can survive to this day, not to mention anything else, but this sturdiness and durability alone can throw away 10,000 roads of mankind.

Stark's eyes were even hotter, such a well-preserved building complex, the things inside should also be well preserved, if you can find a central computer, server or something, it will definitely be a gift from heaven.

Greer had brought back a tablet with data before, but the higher the science tree branched, the more the data increased, and it didn't mean that you could make a product with data and design drawings, and even if you had a production line, it would take a long time to run in if you wanted to make a qualified product.

It's like knowing the mass-energy formula and the structure of an atomic bomb, can you make an atom to a bomb? Even if enough materials are given, it is impossible to come up with random experiments in a short period of time, so those extraterrestrial materials are basically just textbooks and cannot be converted into finished products.

But if you find an alien processing plant or something in this underground city, it will be different, the performance of the equipment determines the quality of the product, and the gap between the old-fashioned hand-cranked machine tool and the six-axis linkage CNC machine tool is not enough to fill Mount Everest.

It's exciting to think about.

Stark couldn't wait to search the underground city and see how many surprises awaited him. But you can't leave right away, so you have to make a thorough plan and make a list of the supplies you need before you go.

Grell is thinking about the danger of this underground city, it seems that in the TV series, this city is engraved with alien runes, a dark-skinned strong man, he went crazy when he touched it, and became unrecognized, this is still a danger of acting, will there be any anti-theft mechanism and other systems?

Grell informed Stark of his worries and worries, making Stark nod in agreement, his Avengers Mansion and Avengers Base are equipped with a variety of security measures, and the important departments of this underground city must have similar measures, although it has been thousands of years, but the city can be preserved, will these institutions also function?

"And signal shielding." Greer racked his brains to think of another problem, this underground archaeology, must use drones, but once Jarvis's signal is blocked, it will be blind, just rely on the Avengers, the year of the monkey can go through this underground city.

Stark nodded, his eyes fixed on the underground city structure map, and said, "I'll go first and take a look, and then decide how to explore later." ”

"Then I'll take a trip." Greer took the initiative to ask, this archaeological work is to know as few people as possible, otherwise once it leaks out, things will become extremely troublesome, and the entire Avengers themselves are not well known, and there is magic.

"Tomorrow, I'll make you some little toys tonight." Stark waved his hand to turn 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.

"No problem." Grell agreed, looked at Stark, whose eye sockets were deep, hesitated for a moment, and said, "Maybe you need to give yourself a long vacation." ”

"Huh?" Stark, who was about to go back to the house, was stunned, turned his head, and said in surprise: "Pepper is complaining that I haven't been in charge of the company for a long time." ”

"You know I didn't mean that."

The smile on Stark's face slowly faded, and he was silent for two seconds before he said, "But we don't have much time. ”

Grell was also speechless, if it was Stark who was worried that there might be aliens invading the earth before, the news that Ama came from another universe and Greer brought back from the universe was a certainty, and Thanos would definitely invade the earth for the Infinity Stones.

Stark is under more pressure than in another universe, as Earth faces a war that he cannot afford to lose, and there is no room for compromise or 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 Earth? has just stepped into the home planet, and it is still far from colonizing aliens, so what to fight with others, no matter how iron your head is, you can't stand it.

Silence, or silence, I didn't know what to say at all, and finally turned into a sigh, and each turned back and walked to the place where they were going, one went to the laboratory, working overtime to make some tools for exploring the underground city in advance, and the other went home to rest, so that I could go to the underground city with full energy.

Outside the window, the moon is dark and the wind is high, most of the earth is shrouded in darkness, and in a room in the Pentagon, Steve Rogers stands in the room with his back painted black, with several fainted people lying at his feet, and the screen in front of him shows a rapidly shaking image, and the final picture freezes on a few guns pointed at a man in ugly armor, and then a hand reaches out, pulling off the mask, revealing the bleeding face inside.

"Bucky !!"