red tomb

After the initial startling attack, Tieqing Harrier made no further movement.The three of Suyou watched for a while, took a few steps tentatively, and found that they didn't respond at all, and finally boldly rushed over with his bag on his back.Before they could catch their breath, they found the same large bird at the next bend.

A row of black lines hung on the foreheads of the three of them.In vain they run out of breath, the result is simply doing useless work!

"...Well, it looks like you have to bite the bullet!" Su You encouraged everyone.

This time they stopped running and walked at their usual pace.Everyone's hands were sweating as the big bird flew over them.I could feel a sharp metallic chill passing by the side of my face, coupled with the accumulated fear before, it was really difficult.

But Tieqing Harrier seemed to have ignored their existence.It can always pass over their heads, and it can always escape their palms, freely and casually.

"Whether it's used as a means of luring the enemy or a means of defense, this is too high-end!" Seeing that he couldn't eat, Jin Sheng, who was devoting himself to experimenting, shattered his eggs.

In this way, the three of them went all the way down.Nothing happened overnight, and there were no other changes in the corridor, which made their progress a little faster, so that they arrived at their expected position at noon the next day.

"If you keep spinning like this, you'll get dizzy." Jin Sheng said helplessly.Walking in the middle is simply the pleasure of murdering his life!

Su You glanced back at him from the front, but said something else. "Here we are... nothing much has changed."

The corridors are still the same corridors, except that the sides are getting longer and longer; the green harriers still like to sneak past their heads, except that the number is increasing.

"Just keep going..." Jiang Siqi said so, but in fact he didn't know what to do.No one knows whether there is danger or a dead end waiting for them below, and they have only one choice.

This topic is really not conducive to in-depth discussion, because the future is not very optimistic.And considering the limited food and water...

Su You coughed lightly, and continued to lead the way in silence.

This situation continued until the evening of the third day.They said it was evening, but the three of them hadn't seen sunlight since they entered the corridor, and their work and rest time depended entirely on their watches, giving them the illusion that they were going to be buried alive underground.

So none of the three paid attention when they heard the creaking sound of metal rubbing against each other echoing in the corridor.There was always that sound when the iron birds flapped their wings, and it was louder when they flocked together.The voice fluctuates, and the three of them are used to it.If it is not inappropriate in an unfamiliar environment, Jiang Siqi, who sleeps lightly, will wear earplugs to sleep.

"There are more and more birds." Su You said while nibbling on a biscuit.

The compressed biscuits they have been eating for three days in a row are really tasteless.But there is no way, in the case of iron walls on all sides, even if they want to cook, they must have firewood and water.

In fact, in order to pack lightly and save food, when they decided to go deep to the end, the three of them had already thrown away the tent, iron pan and other sundries they were carrying.If they are still alive to return, it’s okay to pick them up; if not, then carrying them can only be a burden.

"That's right." Jin Sheng sat next to Su You, his legs spread wide, and his posture was very unrestrained, "And did you notice? They are flying lower and lower."

"It seems to be," Jiang Siqi drank the effervescent water one after another, and his eyes were rolling among the harriers, "But, does it mean that we are almost at their base camp?"

"If they have a base camp, then there is probably hope." Su You replied, but in fact he didn't take it to heart.He was struggling with some problems before, trying to get them all to return; now that no one can turn back, he gave up——

There is nothing to say, even death has to go to the end!

The three of them started talking about other things, filling their stomachs.Normally, that's enough time for that resonant metallic hum to die down; but this one was an exception, and it only tended to get bigger and bigger.

"What's going on here?" Jin Sheng had already rolled out his sleeping bag and was about to dive in, when he heard the sound, he glanced in that direction again. "Don't let people sleep?"

"Otherwise, wait here for a while, and I'll go over and have a look?" Su You suggested.Because of the too much noise, Jiang Siqi didn't sleep well for two nights in a row. He felt that this matter could not be ignored.

"Brother, you..." Jiang Siqi was about to express his objection immediately.

But Su You finished speaking before him. "It's okay, I'll just pass this corner and have a look, and I promise not to go far."

Jin Sheng rolled his eyes back and forth between the two of them, and simply rolled up the sleeping bag again. "Then let's go and have a look together!"

Anyway, there is no need for him to set up a tent, light a fire, fetch water and cook food. It is just a matter of walking a few more steps and changing places to lay sleeping bags!But then again, he now felt more and more that Su You's fall was inevitable—Jiang Siqi hadn't complained at all, Su You was already worried about it, how could this not happen?

But Jin Sheng didn't know that Su You and Jiang Siqi were already half done, and had already had some kind of in-depth physical|exchange.So what he thought was blindingly caring and considerate is actually a kind of necessity.

So the three continued on.After bypassing the two-story corridor, they finally saw a little bit different signs——

Square patterns of different sizes began to appear on the blackened iron wall.It may not be true to say that it is a square pattern, because the gap is extremely deep, like a movable brick inserted into a wall.At least after Su You tried it carefully, he felt that he could push it out with force.

"Probably some kind of mechanism," Jin Sheng gave the most reasonable guess—he's not sleepy at all now, "but I don't know what it's for."

"And there are walls on both sides." Jiang Siqi found this very puzzling. "According to normal thinking, the agency should prevent others from entering, right?"

"Either the organs on both sides are a whole, or they are double anti-theft." Su You reasoned reasonably. "And it's all made of iron..."

The iron birds on the top are extremely dense, almost covering the sky and blocking out the sun.But what is amazing is that in such a chaotic situation, they still fly according to their respective orbits, and none of them hit other birds.

Su You suddenly thought of a big possibility. "Is it a magnet? The reason why these birds don't collide is because they all fly on the magnetic field line?"

Both Jin Sheng and Jiang Siqi stared round.Theoretically speaking, any magnetic force line will not cross, Su Yu's conjecture is not wrong; but in reality, how delicate is the arrangement to build such a large and complex magnetic force field?

"If that's the case, it's a miracle that we haven't been electrocuted to death." When Jin Sheng said this, he didn't want to catch the bird for research.

Because according to the law of electromagnetism, the conductor cutting the magnetic force line will produce electric current.A material like Qingyao is undoubtedly in line with the nature of a conductor, and charges will gradually accumulate on it.

Of course, Su You's guess is that the iron bird glides along the magnetic force lines, which feels like superconducting levitation.But in case there's a cutting flux line, then...

"If there was, we would have been hacked to death by the tip discharge." Su You said.He couldn't help but be thankful that he had never touched a green harrier with his bare hands, otherwise he would probably have been electrocuted.

"Special for crossing the catastrophe?" Jiang Siqi said coldly.

Su You and Jin Sheng were both taken aback.It is true that the tip discharge is the principle of lightning, but at this time, when you talk about crossing the catastrophe... Didn't you really think of the qin sage of Paiyun Mountain?

"Xiao Qi, I have to talk to you about this," Jin Sheng took the initiative to take over the conversation, "You can learn the Yoko, anything is good; you have to learn the cold joke, is that interesting?"

Jiang Siqi ignored him, and only looked at Su You with black and white eyes.

"I just think that if we use tip discharge to explain it, the problem of the three little birds can probably be explained at the beginning." Su You felt that he must not start Paiyunshan's conversation, so he talked about him from left to right. "We must have opened the door, the ionization balance in the air was affected, something went wrong in the unstable state."

"Is it the same reason for you to knock on the door and open it?" Jin Sheng hit the snake with a stick, and immediately said, "There is still that metallic sound..."

"It's hard to say, the things inside are too complicated." Su You admitted that he still can't fully figure out the principle.

"The human body is also charged under normal circumstances, but it is very weak." Jiang Siqi seemed to give them face, and did not insist on the previous topic. "If there is such a thing as electromagnetic balance, a little interference will affect their equilibrium state."

This statement literally opened a new door.

"... Feature selection bioelectricity? Is it too difficult?" Jin Sheng was stunned.Or is it such a weak bioelectric signal? "The current technology can't do it!"

Su You was convinced that he had already written the words "this is not scientific" all over his face. "Anyway, it's just speculation. We can..."

The following "go on and see" can't be finished.Because the metallic hum gradually increased, almost reaching a peak; the square on the iron wall moved in response to the sound, and began to move slowly.After a while, the originally smooth stone wall became bumpy, convex or concave.

"Back back!" Su You called out quickly.Because he had noticed long ago that the patterns on the walls on both sides corresponded; if those square iron blocks were all removed, there would be no room for a person to stand upright in the corridor.

The three turned back quickly.Fortunately they didn't go very deep, and the iron wasn't moving too fast.When they ran to a safe place and looked back, a corridor had already traversed many long and short square iron pillars.Not to mention people, even a mouse may not be able to get through safely.

But those iron birds don't have these problems.Their mobile design seems to be prepared for this situation-whether it is the head or the wings or the tail, they can be folded and stuffed into the belly; the oblong shape can continue to shrink and become an extremely thin iron sheet.Stick it between the iron pillars, and there will be no end of being squeezed.

It was too late for the three of them to marvel at such an astonishing design.The reason why it was too late to say it was because those staggered iron pillars moved away quickly.This time the exposed front end is no longer a stereotyped corridor, but an open field full of gears, long arms, conveyor belts and other machinery!