Sound waves with a frequency of less than 20 Hz (Hertz) are called infrasound. Infrasound waves are not easily attenuated and are not easily absorbed by water and air. Infrasound waves, on the other hand, tend to have a very long wavelength, so they can diffract around some large obstacles. Some infrasound waves can circle the Earth for 2 to 3 cycles. Due to the similarity of the vibration frequency of certain frequencies to human organs, infrasound waves are easy to resonate with human organs, which is very harmful to the human body.

Infrasound waves can interfere with the normal function of the human nervous system and endanger human health. Infrasound waves of a certain intensity can make people dizzy, nauseous, vomiting, loss of balance and even mental depression. Some people believe that motion sickness and seasickness are caused by the infrasound waves associated with the operation of the car and boat. People who live in buildings with more than 10 floors often feel dizzy and nauseous when encountering windy weather, which is also because the wind makes the high-rise buildings shake and produce infrasound waves. Stronger infrasound waves can also cause deafness, coma, insanity, and even death.

————————————————————————————————————

[Infrasound]!

The attack of the living sewing master formalin is extraordinary, just a little flicking of the spider silk can trigger infrasound waves that make people fall down! Senman fell to his knees, his face completely bloodless, and suddenly returned to his last years. At this moment, the "Guardian of the Throne" has already launched the [Soul Piercing Spike], which will cut off one of Formalin's legs in one fell swoop, interrupting the skill!

"It didn't work for me." Qingyi said lightly. The body of the necromantic creature could withstand the toss more than the living creature, so he didn't feel sick or uncomfortable at all.

"It's so interesting." Formalin's severed leg was probably hanging from spider silk, so it didn't fall to the ground, just swinging around. It pulled its broken leg back, and then a few of its front paws danced to help it with a surgical operation. Under its brisk movements, the silver threads stitched up the wounds. However, where did Qingyi give it this opportunity, all kinds of powerful skills were smashed indiscriminately, and Formalin was in a hurry. At this juncture, Formalin's movements don't show how handsome they are, and what they dance is no longer a dance, but a great god.

However, the next moment, Qingyi shouted in his heart. He has been controlling the movement of the younger brothers, but after two walks, almost all of them have been in the state of "fixation"! Carelessly, it's Formalin's [Spider Silk Trap]! It seems to be dancing a big god, but in fact, it is looking down from a high place and predicting the enemy's position before laying a trap, which shows its scheming!

Formalin hung upside down again, falling like a weight in the midst of everyone, and then there was a [White Blade Roundabout]! At this moment, the spider silk emerged from the air, bringing out a faint phantom! The range of this arc is extremely large, and the damage is extremely high, and the pillars on both sides of the bridge will be sawed open!

"[Thirty-six Tiangang • Return to the Wind and Return to Fire]!" The Taoist priest pointed at his sword and said. There were no sound and light effects, and Formarin's figure suddenly stopped, not only for it, but also for those spider silks! Qingyi saw a tiny white line three centimeters away from his cheek, but it couldn't move an inch! Then, as if the camera was rewinding, Formalin's movements regressed frame by frame, changing back to the posture that he had just fallen in front of everyone! That's right, the launch of [White Blade Maneuver] was canceled by Murder Day!

"Huh?" Formalin Road.

[Death Frenzy]! The Berserker Ghost Fire burst into black flames all over his body, and he got rid of the shackles of spider silk and chopped it up in one fell swoop! Formalin only had time to raise his hand to block it, and then screamed - it had lost all five of its claws, and white juice was pouring out of its broken mouth! At this time, the rest of the summoned brothers also got out of the "fixed" state, and surrounded them with a beating (among them, Senman was the most fierce), and the little boss was killed in this way. Qingyi counted the time, the conversation took five minutes, the chase took three minutes, and the explosion took only two minutes. Formalin is really wronged, and it has only lasted ten minutes since they met. As soon as it hung up, the patch spiders stupidly stayed on the web and didn't move, leaving Qingyi to brush up on their experience.

After killing Formalin, Senman let out a long breath of cloudy air and stomped on its head. Qingyi understood the other party's feelings very well, and didn't say much, just picked up the materials dropped by the mini-boss and took the lead to move on.

"That guy just now was pretty unbeaten." Qingyi Road.

"It shouldn't be careless." Xue Duo sighed: "As soon as it sees the strange experimental materials, it will become frizzy. If you weren't a necromancy, you wouldn't know how it would have been played to death. ”

The distance of two hundred meters is gone as soon as you walk. Qingyi had already heard Senman's introduction before, and the East Island was exhausted, and when he saw it at this time, it was unexpected. In the Wanghai Plain on the new map, the ground is so flat that it has almost not sunken, and there are currently some grass and saplings or something, and it is so barren that it is a mess. At least there is still a terrain in the West Island, which can be climbed as a mountain, and it is good that the East Island is not mistaken for a basin. In such an environment, the field of vision is naturally extremely wide, so the little monsters rushed here with red eyes, almost not brushing Qingyi away. I don't know what's going on, there are a lot of Sky Jumping Worms here, and the [Reflective Aura Signal] is activated every few minutes, suppressing Qingyi to a depressed state.

After brushing the monster, it was already past eleven o'clock. Qingyi didn't mean to go offline to sleep at all, first, tomorrow is Saturday, you don't have to go to work, of course you can stay up late; Second, although the quest is reset at 0:00 every day, if the player still stays in the quest before midnight, it will be reset after the player leaves the quest. He had only managed to clear half of the dungeon today, and if he didn't take the opportunity to explore further, it wouldn't be his style.

As he was hurrying, he took the time to look at the leaderboard, and was surprised to find that the black sharp was level 52, squeezing him into second place. But he doesn't care about the level, anyway, the more you level up, the more difficult it becomes, and the gap won't be too big. For example, the ranking between the great gods, the first and tenth places are sometimes only one or two levels apart, and that's because they can't be promoted. The great god doesn't mind, what else does he mind. Besides, Qingyi can't remember how many times he has followed that thing to eat ashes. He wanted to know that he could only level up quickly by waging war, and how did Black Edge catch up?

Suddenly, there was a rumbling sound in the sky! This voice will never be misheard, it is the dragon moan of Emas Phil the Wind Rider! I don't know to what extent the dragon has mutated in the other world, this vocal cord is different, and the roar that should be full of [dragon power] is almost like muffled thunder.

"Get down!" Qingyi roared.

"It's useless!" Senman yelled at Qingyi for the first time, dragging him and running wildly: "There is no shelter here, we have already been discovered!" Moreover, there is definitely more than one person on the other side! ”

"More than one?" Qingyi was stunned for a moment, and hurriedly looked back, almost not lying down: Emasfeld, who was driven by a zeppelin, was really not a person, its claws were all folded, and there were nearly a thousand air roots hanging unevenly under its abdomen. The aerial roots continued to disintegrate, and fragments flew towards this side, flying all over the world—all otherworldly creatures! This Rausch is angry and rooted, and it turns out that countless little guys are grabbing one by one, hanging into one long chain after another!

Qing Yi only remembered at this time: The otherworldly dragons are all responsible for transporting troops!

(Xue Duo: "Host, I told you a long time ago.") You missed the best opportunity at that time~")

Qingyi itself can't run fast, so he simply doesn't run now, and he throws 40% of his experience out when he shakes his hand. You must know that this is all the harvest of a few nights, and it would be a lie to say that he is not distressed, but he just doesn't want to lose 15% of his experience here in vain! If you want to die, let's die happily! What is the effect of the "despicable blood" that contains the experience of the Tyrant of the White Bones? The clouds were as low as an iron curtain to bring down Emasfeld; The earth swelled, spewing out streams of dark red water; The fire of the soul ignited, dyeing the surroundings blue. All kinds of miserable and miserable cries came and went, rendering the Wanghai Plain into a hell on earth.

Emmasfeld's body structure is very peculiar, splitting water into hydrogen and oxygen; Hydrogen is used to provide buoyancy, and oxygen, although it is not very useful, can push away dead gas at the moment. The cloud of death created by Qingyi yesterday was washed clean, and this is the reason. However, the scale of this dead air cloud is extremely large, and I am afraid that if it does not cover a radius of dozens of kilometers, the otherworldly dragon will at most empty the dead qi around it. Moonlight and starlight leaked through the clouds, gilding it with a divine glow.

Otherworldly creatures have been burning life every second since the moment they flew down. Death is effective for living beings, but isn't it poison for them? However, they have long been determined to die, and they desperately pounce on them to hold back the intruders! Seeing this battle, Qingyi still decided to run away, after all, there were too many people on the other side. Senman originally planned to accompany His Majesty to be heroic, but he had to drag His Majesty and run away. Priest Huang Quan was not a fast runner and was soon drowned in a wave of monsters, followed by mages, Taoists, berserkers, and martial artists. The younger brothers were also happy when they were dying, and they were gnawed away after a few stubborn resistances.

"There's a lake up ahead!" Senman shouted, his shield had already been thrown.

Before the words fell, the powerful wave of qi pushed the two of them forward! Senman hugged Qingyi, stepped out more than thirty meters with a [flash], and then continued to run! Qingyi didn't look back and knew that Emas Fell was releasing [Explosive Dragon's Breath Cloud Burst Bomb], and it was Senman who saved his life! The Assassin and the Crossbowbow Archer were unfortunate enough to hang, and the otherworldly creatures they had been chasing were accidentally injured by their teammates and died.

(Xue Duo: "I'll just say this guy will get in the way of his teammates.") If these bunnies go to the front line to fight, they will definitely increase the number of their own casualties! ”）

Senman shouted again: "Jump into the lake to avoid the attack!" - Get down! ”

Qingyi was pressed under him, and a strong burning sensation came from all over his body. Within the range of the fire cloud, the sand and stones melted instantly, pasting on Qingyi's face. Not only that, but hydrogen burns violently and consumes oxygen in the area, and living beings can suffocate if they don't burn to death.

After about ten seconds, the fire cloud faded, and the two of them got up and continued to run wildly. Senman's back is basically charred, but he can still run forward, this willpower is definitely monster-level. Qingyi suffered less damage, so he was able to drag Senman to run instead. He looked back and found that the little boss seemed to have lowered more than ten meters, so he asked, "Am I mistaken?" It doesn't seem to be able to fly? ”

Xue Duo said disdainfully: "Nonsense, it bombarded you, isn't there less hydrogen reserves!" If there is less hydrogen, there will naturally be less buoyancy. ”

"So, as long as you lure it into attacking, you can theoretically consume all of its hydrogen and force it to land, right?"

Before the words fell, another cloudburst bomb fell from the sky!