This stump is one of the claws of the transparent monster, which was cut off by No. 33 from the lower arm, and it was still transparent when it first landed, and it was gradually revealed.

Speaking of which, transparent monsters are also limbs, and each limb also has a joint in the middle, similar to the elbows and knees of humans.

Most of the earth's large terrestrial animals have this structure, probably because the two-stage limb provides enough flexibility, and dividing it into more segments will weaken the support - imagine that if a human arm has two joints in the middle and is divided into three segments, it may be more flexible, but what is the use of extra flexibility?

Only very delicate operations need to be more flexible, but it is enough to add this function to the ends of the limbs, such as the human fingers, which are three-part except for the thumb.

If the arm is also in a three-stage pose, it will be troublesome to lift heavy objects flatly, so Evolution chose the two-stage pose.

The same is true for the limb structure of this transparent monster, although it did not evolve from the same biosphere as humans, but evolution will always choose those more efficient paths, perhaps there have been large land animals with three-stage limbs in the history of the earth, but those animals have obviously been eliminated by evolution - the same species fights, the two-stage arm can burst out with more power, and the side of the three-stage arm is extinct.

Therefore, it is not surprising that the body structure of the transparent monster resembles that of the monkeys on Earth, and it is the best choice made by evolution, but there are differences in details, such as the long rabbit-like ears.

The forearm under the foot of No. 33 is also white and gray, and there is no hair all over it...... If you don't look at the position of the palm, you may mistake it for the arm of a dead person in the morgue.

However, its palms are very different from those of humans or monkeys, with short and thick fingers, thick and sharp nails, only four fingers, one of which is particularly thick, and the nails are also stuffed with scraps of PVC boards, with which it has just cut the roof.

No. 33 didn't have time to take a closer look, so he stabbed his forearm with a short knife and carried it back into the house.

When several girls saw what she was carrying, they immediately took a few steps back in horror and disgust, while Jiang Chanji, the sect master, Louisa, Catherine, and No. 15 did not retreat but advanced, and gathered around to observe carefully.

Jiang Chanji took out a tissue from the tissue bag in the room, touched the stump through the tissue, and said to the others, "It's hot." ”

"What's so hot about it? Do you want to taste it?" said Layla with a frown.

Aurora pondered, "It's important, hot, because it's warm-blooded, and because it'...... Chio, I remember that your scope can be adjusted to thermal infrared imaging mode?"

Qianyang was stunned for a moment, and then nodded.

Her scope has this function, but she rarely uses it, firstly because she rarely acts at night, secondly because the use conditions are very limited, and it is useless if there is a slight blocking, and thirdly, because her scope is monocular, after starting thermal infrared imaging, what one eye sees is a simple outline composed of red, yellow, green and blue, and the other eye sees a normal field of vision, which is very awkward.

"Then you turn it to IR mode and see if you can see the image of the stump?" Aurora said.

Qianyang adjusted according to his words, and immediately nodded again: "You can see it." ”

"So if we encounter this kind of monster next time, infrared thermal imaging should make us not be so passive as this time. Aurora breathed a sigh of relief.

Qianyang patted her head in annoyance, "If only I had thought of it earlier......"

"It's not your fault, no one knows it's warm-blooded, and even if you think about it, turn it to infrared mode and you won't be able to see it through the PVC roof. Aurora reassured.

"Maybe you can see a second ......"

"No, you can't see the second one. Aurora walked to the window and tapped the glass lightly with her knuckles, "Don't forget, the infrared mode is to passively detect the infrared rays emitted by the target to image, the infrared itself is the light beyond the human eye, the wavelength is longer than the visible light, and the energy is carried less, and the light will be reflected and refracted by the glass, the longer the wavelength, the easier it is to reflect, so you can't detect the infrared rays of the second monster through the glass, and you can't see it when you switch to infrared mode, unless you get out of the house, there is nothing to regret." ”

Qianyang suddenly felt a lot more comfortable.

As Aurora said, thermal infrared imaging is very limited by the environment, a leaf can block it, a thin glass can also block it, and even the fog can't pass through, so it's no wonder that Qianyang didn't think of it in advance.

Having said that, something is better than nothing, and if the No. 33, which was outside just now, was equipped with the same monocular scope and switched to infrared mode in time, it would be more than just a stump that would be left behind.

The sect master said in a deep voice: "We have never encountered such a monster before, otherwise we would definitely prepare in advance. ”

"Another point, the appearance of two monsters together may indicate that they live in groups, but fortunately there are only two of them this time, if it is a large group......" Aurora did not continue.

If they encounter a large group of monsters of the same type under the premise of being caught off guard, the most powerful sect master on their side is in an extremely weak state, and the outside is filled with poisonous and irritating gases, and in the worst case, they may be wiped out here.

It's not that they're afraid of poisoning, it's mainly because they will cough incessantly outside, and when they cough, they will inhale more irritating gases, and then they will cough even more.

Transparent monsters don't cough, possibly because their respiratory system is different from that of humans, or because they have adapted to the poisonous gas of fireflies to some extent.

"It seems necessary to make a few more sets of monocular sights like Chio......" Aurora changed the subject.

Luisa couldn't understand Chinese, but she could see that everyone's eyes fell on Qianyang's scope, and when Qianyang switched to thermal infrared imaging mode, the inside of the lens also reflected Qianyang's eyes in red-green, so she was curious to ask what Layla was, and after getting the answer, she couldn't help but make a request, hoping to get a batch of the same scope.

The monocular sight was designed by Zixuan and ordered by the Red Leaf Academy, Aurora was inconvenient to be the master, but Jiang Chanji came forward to agree, he was not so stingy whether it was Zixuan or the school, this thing was not for personal gain, it was completely necessary to equip everyone who might use it.

The sect master looked outside, stood up with his body propped up, and said, "There can't be no one outside for a long time, it's time for me to keep an eye on it." ”

"Sect Master ......"

"Sect Master......"

Several people spoke at the same time, and everyone saw that the current situation of the sect master was not suitable for personal danger, and if something happened, the ninja academy, which did not want to regain hope, would completely fall into the abyss.

"Sect Master, I ask to exchange masks with you, or I will go out on duty!" No. 33 stopped in front of the Sect Master.

"No, you can rest. The Sect Master shook his head.

"Two!" Jiang Chanji interrupted, "Don't argue yet, can you fit a monocular scope into your mask? If not, if you can't, if the transparent monster comes out again, you won't be able to see it?"

The masks of the ninja suits are more suitable for the head shape, with a certain elasticity and tightness, but if it is forced into the monocular scope, it will be very uncomfortable, and it may not be stuffed at all, so the sect master did not propose to give the scope to the ninja academy just now. 33

Everyone was silent all of a sudden, and now only the sect master could go out normally, but the mask and scope were incompatible, so everyone was helpless.

At that moment, Mio's ears moved—most people's ears don't move on their own, but hers was exceptionally flexible.

"What's the sound?" she looked up suspiciously.

"What?"

Except for Mio, no one else heard any strange noises, only the rattling of the permanent magnet rolling.

Miao frowned and tried to think, she forgot for a moment how to say the Chinese term, and only after a few seconds did she hold back a sentence: "Steel dragonfly!"

What the hell is a steel dragonfly?

Everyone thought that some kind of insect-like monster had appeared in the "passage", but Aurora reacted first: "You mean a helicopter?"

"Yes, Olara, your brain is still useful occasionally!" Mio high-fived with a fist.

None of the others heard the helicopter, which means that the helicopter was far away and did not come closer.

"Could it be that the teachers are here?" said Chio excitedly.

"It's possible!" Xiao Sui also smiled, "Maybe it's the 22nd to make a call!"

"Great...... But why didn't the helicopter fly over?" Qianyang suffered from gains and losses, for fear that it was not the teacher who came, but someone else, such as a helicopter passing by.

In fact, she thought too much, how could there be a helicopter passing by this kind of ghost place where birds don't?

"The magnetic field interference here is too strong, and the helicopter can't get close. Aurora explained.

The vehicle can at least drive due to the interference of strong magnetic fields, but the helicopter has too many electronic components, which is easy to interfere with, and may even lose control directly.

"What should I do, will the teachers be able to come over safely?" Qianyang looked worriedly at the miniature lightning bolts in the mist, "Shall we pick them up?"

"No, I don't. The Sect Master said, "Our ninja suit has a certain insulating ability, and as far as I know, the Momiji Academy also has a special suit that is specially used to deal with this kind of incident. ”

Magnetism and electricity are inseparable, and the appearance of "channels" is accompanied by strong magnetic fields, and wherever water vapor is not too scarce, lightning and thunder will follow, even in extremely dry deserts.

Many people have played with it when they were children, when the magnet comes into contact with the sand, it will suck out a lot of black granular matter from the sand, which are ferric oxide, proper magnetic materials, attracted by the magnetic field, black particles rub against each other, and electricity will be generated, so even in the desert, there is also a possibility of miniature lightning.

In this case, it is definitely impossible to say that Momiji Academy was not prepared to deal with micro-lightning in advance.

However, whether it is a ninja suit or a special suit for the Red Leaf Academy, it can only deal with the miniature lightning associated with the "channel", and if the voltage is too high, such as Wang Yefei's lightning, it will still break through the insulation.

No. 33 was stunned, she knew that there would be no risk of electric shock if she wore a ninja suit and directly touched the mains, but they were ninjas who stole information, not electricians, so was it necessary to add a special layer of fabric insulation?

"Someone!"

Several people craned their necks, their faces pressed against the window, staring in the direction of the entrance to the depression, hoping for the stars and the moon, until finally they saw a few figures swaying in the mist, and miniature lightning seemed to be swirling around them.

Aurora has maintained a fog-free zone for a long time, and using her ability for a long time is like jogging for a long time, which is more tiring than a short-term burst of ability, and now she can't care about it much, and tries her best to expand the fog-free zone again.

Several figures finally revealed their true faces, judging from their body shape, they should all be women, but they were all dressed in gray clothes, with a zipper at the back collar, and they could take out their hoods of the same color, they were wrapped in gray clothes from head to toe, and they were wearing gas masks on their faces, so they couldn't see their appearances.

Jiang Chanji and the others were wondering if they were the teachers of the Red Leaf Academy, and suddenly saw that they had the same red leaf logo as the school emblem on their chests, which couldn't be wrong.

"We're here!" they jumped and screamed excitedly.

Five of the teachers came, two of them staring at the "passage" with horns, and the other three entered the room.

The three teachers looked at them, their eyes frequently falling on the three ninjas, and one of them asked, "May I ask which one is the sect master of the ninja academy?"

"I am. The Sect Master stood up.

"Sorry, we're late. The teacher apologized first, "We actually arrived in the neighborhood earlier, but we found that the fog was poisonous, and we had to return to the helicopter to get gas masks. ”

"Huh, Mr. Li is here too?"

Jiang Chanji looked at the two teachers who stayed outside, one of them was relatively flat, and that should be Li Muqin.

The sect master also glanced out, as if he had finally put his heart back in his stomach, but he still reminded: "Please tell the two teachers outside that some kind of transparent monster has appeared in the 'passage' this time, which is quite tricky. ”

The teacher who spoke raised his eyebrows and said in surprise, "You also met here?"

"What do you mean?" the Sect Master could hear her tone of voice change.

"The head of the academy is dealing with another 'passage' in Kunlun Mountain, and she and several teachers in the same group have also encountered some kind of invisible monster, but I don't know if it is the same kind of ...... as you" The teacher explained, "We also contacted the head of the academy just now, and she was very shocked to learn that there was a second 'passage', but she was thousands of miles away and couldn't come back for the time being." ”

The Sect Master was also equally shocked, "Two 'passages' appeared at the same time?"

During her time of isolation, how much has the world changed?