A few people searched through the ruins to see if there were any survivors, and searched most of the town, except for the dead who were dead, where were there any survivors.

A few people walked out of the town with some disappointment, and after walking some distance out of the town, they faintly heard the cry of a man in front of them, and the sound was blown by the wind and fluttered over.

Fili frowned and said, "Why are the old men still crying, what a bad seed." ”

"Let's go and see, there's dead people everywhere, maybe it's a survivor." ”

The five men rushed in the direction from which the sound came, and after running for about three or four minutes, they saw a building in front of them, it was a small three-story building, it looked very dilapidated, the whole building was already crooked, and it began to shake as soon as the wind blew, and it looked like it might collapse at any moment.

Filip said: "What kind of building is this? It's a miracle that you can still stand, shouldn't it be demolished?"

When a few people went downstairs, they saw a man sitting on the ground crying, holding a woman in his arms, the woman seemed to be unconscious, no matter how the man cried, the woman did not react at all.

This man is at least 1.9 meters, a tall man sitting on the ground crying, whoever sees it, I'm afraid three black lines will fall off his head.

Xu Tian took a closer look, the man was holding a beautiful young woman in his arms, if this woman was placed on the earth, she would definitely be able to fascinate thousands of young women, but unfortunately, such a stunning color did not have any outstanding features in the eyes of the people of the Calfa Star, this is really the sadness of being born in the beauty of the Calfa Star!

The young woman's eyes were closed, her face was pale, and there was a trace of blood at the corner of her mouth, apparently seriously injured and dying.

"What's wrong with you, friend?" Leckley asked, "Is there any trouble with you?"

The man raised his head, looked at Leckley with teary eyes, and choked up, "Who are you? This place has just been attacked by government troops, you better go quickly, it's not safe here." ”

At this time, this person is still caring about the safety of others, it seems that this is an honest and good person, Xu Tian and Leckley have decided to help him.

Leckley pointed to the young woman in his arms and continued, "Is this your wife?

The man nodded and said, "Yes, she is my wife, she was hit by shrapnel from a missile just now, and she has not lived long." ”

Xu Tiandao: "Then why are you sitting here, where is the building behind you, is it related to your wife's injury?"

Xu Tian's thinking was really thoughtful, and neither Leckley nor Filip thought of the question Xu Tian raised.

Sure enough, the man nodded again, and through the man's narration, Xu Tian and the others knew what this building was for.

The building was originally a biological research base, where various biological research was conducted, and one of the studies was said to be the development of a drug that could treat any disease or injury, and that it had the effect of reviving the dead.

I don't know if this research was successful, but then there was an accident at the research base, and it was said that a demon beast that was being studied suddenly lost control and killed all the researchers, and since then, the base has been abandoned.

The man's wife had been seriously wounded in a recent government attack, and the man wanted to go to the base to find the drug, but the security measures in the base were so tight that he couldn't get in, so he sat here crying.

After listening to the man's story, Xu Tiandao: "Don't cry first, I can help you go in and have a look, if you're lucky, maybe I can find the kind of medicine you said." ”

When the man heard Xu Tian's words, he immediately stopped crying, he looked at Xu Tian with anticipation, and said, "Friend, if you can really help me, my life is yours, you can let me do anything." ”

Xu Tian smiled: "Don't be so polite, it's useless for me to ask for your life, you still keep your life and love your wife." But don't get your hopes up, even if I can get in, it's hard to say if the drug you're talking about really exists. Okay, you guys wait here, I'll go in and have a look. ”

Leckley stopped Xu Tian: "Wait a minute, if there are really demon beasts inside, then it's too dangerous for you to go in alone, so I'll go in with you with Fili." ”

Xu Tiandao: "It's okay, then let's go in together." ”

Although Filip was reluctant, he could only reluctantly follow for the sake of Luckley's face.

The man said, "I'll go in with you, too, and I can help if I'm in danger." ”

Xu Tian waved his hand and said, "No need, if it's really dangerous, it's useless to have one more of you, you can help us take care of these two girls." ”

The three of them walked into the small building, which kept shaking, maybe it would collapse in the next second, and the three of them were also trembling, and they were very careful with every step.

However, according to the man, the three-story building was only the living quarters of the scientists and staff, and the real laboratory was underground, and the three of them saw a staircase going down at the staircase, and a large black iron door at the end.

The iron door had already been pushed open, it must have been pushed open when the man came down earlier, and I don't know what he encountered inside, actually blocking his way.

The three of them walked into the iron gate and continued down the staircase, which was very long, extending downward in a spiral, and the three of them had walked for a long time, and it was estimated that they had gone deep underground.

Xu Tian thought to himself: "I don't know if there is a hell on the planet of Calfa? If you go on like this, you shouldn't go to hell, right?"

After walking for a long time, I finally saw the end, and it was a big black iron door, but this door was not opened, but closed, refusing to allow outsiders to enter.

It should be this door blocking the man's way, the three of them walked into the iron gate to observe carefully, and found that this door is indeed different, there are actually three holes with a diameter of half a meter on the iron door, and you can see the scene inside the door from the hole, but it is black and rumbling, and you can't see anything clearly.

The strangest thing is that these three holes are circle, square, and triangle, and I don't know what these three geometric patterns represent?

Xu Tian pushed the iron door hard, but the door did not move, Xu Tian stretched his hand from the hole to the back of the iron door and groped for a while, the back of the iron door was bare, and there was no door lock or anything like that.

Filip said, "Don't be busy, watch me just smash it with lightning." ”

As he spoke, Filip raised his hand, and a cloud of blue lightning appeared in his palm, Xu Tian and Leckley reached out to stop him at the same time, Xu Tian said, "Don't come nonsense." ”

Fili said unconvinced: "Why am I here?"

Xu Tiandao: "Your Calfa Star has very advanced technology, if it is an ordinary iron door, it only needs violence to break it, do you think this door is placed here for you to destroy and play? I believe that as long as you break it, there will be some powerful mechanism inside, either to kill us, or to destroy the things in the laboratory." ”

Filip blushed a little, but he still said stiffly: "Then you say, how to open the door? If you have a way, you can think quickly, if you can't think of it, you can only do what I say." ”

Xu Tian pointed to the ground, and Fei Li looked down, only to see three stone slabs placed on the ground in front of the iron gate, and the three stone slabs were round, square, and triangular, which were the same as the three holes in the door.

Filip said: "I see, as long as you put these three stone slabs into the three holes in the door, you should be able to open the door." ”

As he spoke, Fili stooped down and picked up the round slab, ready to press it into the circular hole in the door.

Xu Tian stopped him again, and Fili was completely angry: "What do you mean? Are you targeting me?"

From the beginning, it was his Filip who was targeting Xu Tian, but he said in turn that people were targeting him, and the shameless people in the world were nothing more than that, right?

Xu Tian ignored Filip's shout, and said calmly: "If the mechanism is so simple, then there is still a necessity to set up the mechanism? If you put the round stone slab on the circular gap, I guarantee that you will regret it." ”

"Then what do you say should be done?" said Filip as he glared at Xu Tian.

Xu Tian looked at the three gaps on the door, and said in a deep voice: "The arrangement on this is a circle on the left, a square in the middle, and a triangle on the right. ”

Fili said, "Are you sure? If not, don't mess with it." ”

Xu Tian shrugged his shoulders and said, "To be honest, I'm not sure, what I just said is just a guess, but my guess should be the most reasonable." ”

After speaking, Xu Tian looked at Lekley, who nodded and said, "I agree with your guess, just try it according to what you say, if it fails, I can't blame you." ”

Fili wanted to say more, but Leckley waved his hand, and Fili could only stand aside and sulk.

Xu Tian picked up the round stone slab and pressed it on the triangular gap on the right side of the iron door, although the stone slab did not match the shape of the gap, but when the stone slab touched the iron door, there was a sudden sharp edge on the iron door, and the stone slab was firmly sucked on the iron door.

Xu Tianxin said: "There is a door!"

Immediately afterwards, Xu Tian picked up the square slate again, and the square gap on the door was in the middle, so Xu Tian still put the square slate in the gap of the square, and the slate was tightly connected with the gap, and the slate was embedded in the gap.

Xu Tian looked at the iron gate, it didn't seem that anything unusual had happened, Xu Tian was even more confident in his heart, it seemed that his guess was not far from ten.

Xu Tian picked up the last triangular stone slab and pressed it against the circular notch, and the same as before, a sharp edge was generated on the iron door, and the triangular stone slab was firmly glued to the circular notch.

The three stone slabs were all done, Xu Tian took a step back, staring at the iron door without blinking, a minute passed, the iron door did not move at all, and there was no change.

Fili sneered: "Hehe! It seems that you have been busy for a long time, hey!"

Fili had a smile on his face, looking very unbeaten, but before his smile could fully unfold, suddenly the iron door slowly rose upward, and Fili's words that were about to taunt Xu Tian were blocked in his throat.