Chapter 4 Trap

"What the hell are you doing?" Xu Chu shouted, "I will be your ancestors for 18 generations! If you have any means, just use it with me. If I, Xu Chu, half frown, I will not be a hero!"

However, although Xu Chu shouted bravely, he could not hear anything except the alarm.

The layout of B2 area is similar to that of the previous area. The four walls are wrapped with metal materials, and the ground is covered with one square meter of marble floor tiles. It is also about 200 meters away from Cao Bo. The door is open. It seems that nothing needs to be opened.

"Lord, it's not too late. Let's set out quickly. If it's late, it will change!" Guo Jia took the lead in swinging his body and swam forward, and Cao Bo knew that his worries were not superfluous. The first two levels have fully shown that this 'test' is not easy. As long as he is not careful, he may suffer losses.

Cao Bo nodded and walked forward, while Xu Chu took a quick step, but as soon as he took two steps, he screamed! Cao Bo saw Xu Chu's body fall down quickly. He rushed forward and grabbed Xu Chu's arm. Then he saw that the marble board that Xu Chu was standing had just fallen, leaving a big dark hole in that position, and Xu Chu was swinging in that hole at this moment. If it hadn't been for Cao Bo's quick reaction, Xu Chu would have been early. It just fell down.

"Catch it, don't move!" Cao Bo held Xu Chu tightly and pulled it up hard, and Guo Jia also threw out his tail and wrapped it around Xu Chu's body, but before he could exert himself, Cao Bo shouted, "Feng Xiao, don't move! Don't move!" Because Cao Bo saw that the floor with double-headed eyes crawling was also a little loose around, if Guo Jia tried hard, he would definitely fall down.

Obviously, Guo Jia also found his situation. He gradually slowed down his movements, and then carefully climbed up the marble next to him. When the double-headed cobra just left the marble floor, the floor suddenly fell down and left only a hole of one square meter!

Be careful of the crypt! There are a few shocking characters written on the wall. When he first entered the B2 area, although Cao Bo saw this word, he didn't expect it to mean this. If he fell from here, would he fall to pieces?

"Puptong..." At this time, Cao Bo heard a dull sound of falling water from under the cave. Obviously, this was the sound of the floor under Xu Chu's feet, falling to the bottom of the pit! And there is at least more than ten seconds between this period, which can roughly determine how far Cao Bo's position is from the bottom of the pit!

Fortunately, it seems to be a pond below. Even if it falls, it may not die, but Cao Bo dares not try it. Because of such a high distance, whoever falls will be injured for the time being. It is very difficult to climb up!

"Lord, this is a trap!" Guo Jia's voice sounded a little shocked. If it hadn't been for Cao Bo's prompt in time just now, he and Jia Xu would have fallen.

"If it is such a mechanism, the trap should be placed according to a certain rule. Hurry up and see if there are any marks on the floor under you?" Cao Bo finally pulled Xu Chu up. He is located at the entrance of B2 area, which should be a safe area within a range. The step Xu Chu just took has entered the trap area, and the situation of the two-headed cobra walking in front of everyone is even more unfavorable. If it hadn't been for its lightness and little pressure on the marble floor, Guo Jia and Jia Xu would have fallen into the deep pit.

Xu Chu lay on the ground and gasped. Obviously, he was scared just now, and he muttered in a low voice, "Damn it, isn't that too much?"

Guo Jia poked his head down from the hole, and then told everyone in surprise that under the marble floor he is now, there is a huge pillar supported by it. Even if he steps on it, it should not fall off. Cao Bo carefully took a step towards the marble floor, and it was really safe to stand on it. It seems that not all the floors will fall into this trap, but how can we know where it is safe?

Cao Bo also leaned over and took a look, but found that he could not see his fingers in the dark hole. With Cao Bo's eyesight, he could only see the scenery two or three meters away, and he could not see anything further away.

Cao Bo carefully checked the floor. Originally, he thought that this kind of mechanism had some kind of arrangement, and if there were patterns or words on the floor, he would infer the rules.

However, Cao Bo searched carefully for a long time and groped on the marble floor for a while, but in the end he got nothing.

"Master, how about you try my method?" Xu Chu took two steps forward, and then stepped hard on a piece of the floor in front of him, and because of the huge force, the floor suddenly fell off completely around, and then the whole piece fell down quickly.

Cao Bo's other foot stood in the safe area. After stepping out, he quickly returned to the safe floor, so he was not taken down together this time.

"Look, Lord, as long as we try to go there one by one, we can walk there sooner or later!" Although Xu Chu was talking, he was not idle under his feet. He tried one by one along the safe area. Sure enough, some floors fell, and some floors were safe to stand.

Cao Bo was a little surprised by Xu Chu's urgent wisdom. Maybe he was misled by some knowledge and impressions before, so in the end, Cao Bo did not even think of the simplest method. It seems that only hard work is the best way to solve the problem!

This channel is eight meters wide, that is, there are six marble floors arranged side by side. When Xu Chu stepped through the first row of floors, everyone found that there were only three pieces in this row that could stand on.

"Lord, leave this matter to me!" Xu Chu patted his chest and promised, "I don't have so much ability, so I can only do some hard work!" I think in this case, we will be able to get through here soon."

Although Xu Chu said very confidently, and Cao Bo also joined his ranks, in the process of the experiment, Cao Bo thought of another problem: at the beginning, each row could only have three feet, and this channel is 200 meters long, with a total of 200 such organs! It takes a lot of time to try such pieces and put them aside. That is to say, if there are fewer and fewer places where you can stand in the back, such as one on the far left and one on the far right, then there is a distance of four or five meters! Can this method still work?

What worries Cao Bo most is that if this test is the only one, it will be a little too simple, so Cao Bo feels that there is still something wrong.

Sure enough, when Xu Chu and Cao Bo gradually proceeded, Cao Bo found that the problem had developed from the initial simplicity to complexity, because when testing the first row, Xu Chu could still stand on the field to experiment, and then they had to stand that it had been proved to be true. On the floor, you can stretch out your feet to test whether the floor in front and in front of you is strong, which makes the test difficult because of the center of gravity.

When Cao Bo returned to the safety zone and looked forward, he found that the positions left in the first row were: the second block, the third block and the fourth block; while the position of the second row was: the first block on the left hand and the second block on the right. Without the front, the two pieces were difficult to detect; the third row The safe position is only the first piece of the left hand, and the rest of the positions Xu Chu will sigh every time he steps on one foot, because those floors have fallen down.

There must be a regularity in it! Cao Bo squatted down and looked at those dark caves, and Xu Chu was still trying to test which part to stand firmly. However, the more he went, the more he thought before, there were fewer and fewer places he could stand. Later, several times Xu Chu almost fell down for the experiment, which shocked everyone in a cold sweat.

But people always come up with a way, and then Guo Jia came up with a way: he tied Xu Chu firmly with his tail, because the two-headed cobra is also six or seven meters long, so it can be enough to use it as a rope.

The only problem here is that if the snake's strength is not strong, it is likely to be taken down by Xu Chu, but the snake has been strengthened, so this problem has been solved.

"What a stupid way!" Looking at Guo Jia and Xu Chu constantly stepping on the floor, Jia Xu did not forget to sneer: "If this is really a test question, how can it be so simple?"

"Isn't this a test of our ability to work together?" Xu Chu was still stepping on the floor, but this time he was a little bolder. After all, with Guo Jia as his backing, at least he was not afraid of falling in.

"Wen He, what do you think of?" Guo Jia looked back at Jia Xu and asked for advice: "Although this method is indeed a little..., we can only do this now..." Guo Jia was concerned about Xu Chu's face, so he did not say that it was a stupid method, while Jia Xu quickly probed his head into the hole next to him. After three or two seconds, Jia Xu stood upright again. He got up and quickly said which floor within two or three meters was a trap.

"At least this will reduce some unknown risks..." Jia Xu sighed and shook his head and said, "Actually, I don't have a good way, because the traps here seem to be irregular!"

Is there really no regularity? Cao Bo was still thinking about the location of these traps, and Jiang Gan went back and forth in the passage. When he fell on Cao Bo's shoulder, Jiang Gan told Cao Bo that there was no problem after inspection at the exit, but he felt a cool breeze around him, and he could faintly hear the sound of water.

Cool breeze? Cao Bo didn't pay attention until he heard Jiang Gan's words. At this moment, he did feel that there seemed to be a refreshing airflow floating around.

Cao Bo stretched out his right index finger and dipped some saliva in his mouth, and then put it up in front of him to test it. Sure enough, his fingers suddenly cooled down. It seemed that the wind was indeed blowing from all directions.

The sound of water... Cao Bo just thought of this. Suddenly, the walls around the passage opened countless small mouths of bowls. Only in an instant, a fierce stream of water spewed out from it. At the same time, the alarm sounded again: Attention, all units, attention, the waterproof layer in B2 area is broken. Please quickly transfer to safety. Region...