Helen seemed to have guessed that Xu Rui would be so shocked, and explained lightly: "This has to start with that ruin, there are many large and small ruins scattered in the eight hundred miles of Hanhai Gobi, about seven or eight.

All of the ruins are buried deep in the ground, covering different sizes, from seven or eight hectares to a few acres, but they are all the same three-story structure made of high-strength concrete and alloy.

There's a lot of high-tech equipment inside the ruins, as well as weapons I've never heard of, and I don't know how much you know about the future, but most of the things, including those alloy armors, are beyond my knowledge. ”

Xu Rui frowned when he heard this, and asked: "You said that those ruins are all structures with upper, middle and lower layers, is it the top layer to reserve materials, the middle layer to arrange personnel, and the bottom layer to place weapons?" ”

Helen was stunned: "The bottom floor is not open, I don't know what the situation is, but the top floor is indeed a warehouse, and the personnel residence is the same as you said, it is on the second floor, have you also been to similar ruins?" ”

Xu Rui nodded and shook his head again: "I haven't been to any ruins, but judging from your description, these so-called ruins should be military bases." ”

"A military base?"

Helen's withered cheeks twitched slightly, and her big eyes narrowed.

"Yes, this structure is a typical defensive structure in the era of interstellar colonization, usually used to defend against enemies from the underground, you know that when a race is faced with an advanced civilization that is difficult to resist, it will often choose to hide underground to save the last hope.

In this way, the colonizers not only took time and effort to clean up the battlefield, but also outweighed the losses.

Therefore, colonists often choose to build such defensive colonization bases, completely seal the entrance to the underground passage, and suffocate those who resist underground. ”

Helen suddenly said: "In this way, the ruins I have been to should be a military base for some advanced civilization to colonize this planet, but why did such a powerful civilization suddenly disappear?" And why were those bases abandoned? ”

Xu Rui shook his head: "The situation you mentioned is not very common, usually colonists will not easily give up colonies that can produce resources unless they exhaust the resources of this planet."

The planet is still alive and well, and it doesn't make sense that the military bases have not been damaged, but have simply lost most of their functionality due to age, energy depletion.

But what makes me feel the most strange is the group of people who call themselves caretakers, you must know that the technological civilization that can meet this standard, all bases are tightly controlled, and even if they are abandoned, it is impossible for people to enter and leave.

There is only one possibility that the so-called caretakers can survive in it for a long time and activate some of the functions of the base, and that is that they have the authorization of the colonists.

But as far as I know, no colonizer could have given such privilege to the indigenous creatures of the area. ”

"The caretaker is human, could this planet be a former colony of humans?"

Helen suddenly remembered something and asked excitedly.

Xu Rui shook his head: "No way, I have been to all the colonized planets of mankind, and there is no such planet." ”

Helen said: "Since you and I existed decades apart, maybe these bases are from the more distant future, and you can't have been to the colonies at that time, right?" ”

Xu Rui still shook his head: "You are an astronaut, you should know that time will be compressed under the influence of huge gravity, and two people travel through different spaces, due to the different gravitational force of the wormhole through which they pass, the speed of time flow is also different, resulting in this situation between you and me."

However, this planet is the target location we travel through, and it is not affected by the gravitational pull of wormholes, so the probability of such a situation is almost unimaginable.

What's more, no matter what race, their technology is the same, and the alloy armor you use has taken a completely different technological path, unless the human race overturns all the previous technology systems and reinvents them, it is absolutely impossible to be the creation of human civilization. ”

The excitement on Helen's face gradually died out when she heard this, and she said, "Then what do you think about this strange planet?" ”

"Insights?"

Xu Rui was stunned: "I think the most likely situation is a parallel universe." ”

"Are you saying that we are not in the original universe at all, but in another world?"

Helen was stunned.

Xu Rui nodded: "You have also discovered that the starry sky here and many geomorphological features are similar to the height of the earth, but the details are completely different, so I used to firmly believe that this is actually the earth, but it exists in another universe."

There was a chance event in this universe that changed the direction of this planet and the entire human civilization, resulting in today's result, which is what we see.

And the colony bases you've been to are likely to be what I call a fortuitous event. ”

"So, it's very likely that the star map and coordinates I found are not signals to attack Earth?"

After listening to Xu Rui's words, Helen couldn't help muttering to herself.

Xu Rui was stunned: "What did you find in the ruins, why do you say that it is the hope of returning to Earth?" ”

Helen came back to her senses and explained, "The keepers have a holy book that records their history and many secrets, but not all of them are written in books, some of which are carved into the outer wall of a ruin.

When I was repairing the alloy armor and escaping the ruins, I smashed through a concrete wall and found a gap between two walls, one of which was engraved with a small part of the sacred text.

In addition to the star charts you mentioned earlier, there is also a formula for the stars, which seems to be missing an important parameter, but if you bring in the distance between the Earth and the Sun, you can calculate the coordinates of the solar system. ”

"So you think you can go back with this coordinate?"

Xu Rui asked.

Helen sighed: "I originally thought that this was the case, if I could find the spaceship or teleportation machine left in the ruins, maybe I would return to Earth immediately."

But when I heard you say this, I realized that the original idea may be too simplistic, if we are really in a parallel universe, then even if we have these things, we don't want to go back. ”

Xu Rui also sighed when he heard this, as if he didn't want her to be too disappointed, and explained: "My speculation has no reliable basis, it's just a blind man touching an elephant, and no one can tell what the truth is." ”

As he spoke, Xu Rui seemed to think of something again, and suddenly asked, "By the way, I heard that you have a black cat?" ”

"You're talking about survivors?"

Helen asked.

"Survivors?"

Xu Rui was stunned.

"That's the name of the black cat."

Helen explained: "After I escaped, I killed a clown who jumped off the beam, but I didn't expect him to be Longtu's man, and Longtu was furious when he learned that this person was dead, and he wanted to come to seek revenge.

I also happened to want to capture his power to explore the ruins, find drugs that can suppress cancer, and clues to return to Earth, so I lied to him that there was a treasure next door, hiding secrets that could make people immortal.

This dragon figure is very powerful, but unfortunately he is illiterate, and he was confused by the lights and flames that I casually made with my alloy battle armor, and easily believed that I had the power of ghosts and gods, coupled with the temptation of immortality, and quickly agreed.

We also found an abandoned ruin, and at some cost we were able to enter it, but unfortunately we only found a pile of half-finished genetic potions, except for some gold, silver, and supplies.

Now it seems that those potions may not be half-finished, but they should be used by those advanced civilization creatures, not humans, so the side effects are too huge.

At that time, I opened the door of the ruins, and found a large number of materials on the first floor of the warehouse, including a large amount of gold, silver and other precious metals.

I took advantage of this time to sneak into the second floor, and as soon as I opened the alloy door, I saw the black cat.

The ruins had long since been abandoned, and I don't know how it got in, but there was only one living creature in the entire base, so I took it out and named it Survivor.

But we didn't have time to bring it out when we fled, and now it's probably gone up in smoke along with the church, right? By the way, how did you come up with the idea of asking about it? ”

"It's nothing, it's just curious how you can be in the mood to have a pet when you don't have much time."

Xu Rui said haha, but he didn't tell the strange thing about the black cat.

Unconsciously, Xu Rui had already carried Helen to the vicinity of the broken temple in the west of the city, and when he was walking, Xu Rui and Helen's faces changed at the same time.

"There's a big team ahead!"

The two said in unison.