"Bang, clang. ”

The sound of train wheels rubbing against rails echoed in my ears.

Baili Qingfeng sat on the train and closed his eyes to recuperate.

The train runs 24 hours a day, and he bought a ticket at half past two in the morning, and it takes ten and a half hours to get to the city of Miro, which is about 400 kilometers.

At this time, there are too many stops on the train road, which seriously affects the train speed.

Baili Qingfeng maintained this squinting state, and the time unconsciously reached the dawn of the next day.

At this time, there seemed to be a strange movement on the train.

Baili Qingfeng opened his eyes and found that many people in the car were looking outside.

Baili Qingfeng glanced at it, and by the morning light rising in the sky, he found that on a highway parallel to the railroad tracks, personnel carriers, armored vehicles, and tanks were running in a long line on the road.

However, personnel carriers, armored vehicles, tanks are not the point, the point is ......

The smell of gunsmoke.

In these vehicles, Qingfeng saw the smell of gunsmoke.

The army seemed to have just come down from the battlefield, and Baili Qingfeng's eyes were sharp, and he could still see the wounded who were tied with bandages and stained with blood.

The soldiers sat silently on the train, silently staring at the people on the train, numb, silent, and in a moment, as the train tracks and highways went from parallel to separate, gradually moving away until they were completely invisible and disappeared without a trace.

"Is it a war? Aurora people are coming?"

"No, we're in the south, and the Aurora Empire is in the north, and we're not fighting with the people of the Aurora Empire. ”

"The scale of the army dispatched this time is not small, I just saw several thousand people, two or three regiments, it is really a war, we should have known it a long time ago. ”

"I heard a month ago that there was a large-scale subsidence in Like County, and it was suspected that there were cave people...... This is not far from Lick County, could it be a caveman?"

In the car, many people talked about it, and even some people who had closed their eyes and recuperated woke up at this time.

Baili Qingfeng listened, looked at the convoy outside the window, which was no longer visible, and fell silent.

The Jiang family, Eddie and his son, and the Iron Sword Sect are unscrupulous, and they are now marching on a large scale.

"I may have to change my understanding of the world...... This world is far from being as peaceful as I imagined. ”

......

The train arrived at two o'clock in the afternoon to the city of Miro, an hour late.

Compared to Char's clear sky and cloudless skies, it is raining in Miro City.

Thunder storm.

It seems to foreshadow what event is happening.

Baili Qingfeng got off the train and didn't dare to eat near the train station.

It's not a small probability to eat egg fried rice for 100 yuan here.

He took the bus to a place one kilometer away from Tiejianmen, ate Chinese food, watched the rain keep falling outside, advanced five yuan from the 200,000 funds collected to destroy the door, bought an umbrella, and walked towards Tiejianmen.

The Iron Sword Gate was not built in the barren mountains and wild mountains of the famous river Osawa, and like the Jiang Clan's Martial Arts Pavilion, the Iron Sword Gate also survived in Miro City by acting as a martial arts hall.

It's just that compared to the Jiang Martial Arts Hall, the Iron Sword Gate covers a much larger area, not only three small buildings, but also two training grounds the size of basketball courts, in addition to some equipment for exercise and activities.

When Baili Qingfeng came to the Iron Sword Gate, he found that the atmosphere in the Iron Sword Gate was a little tense.

The gate was ajar, and under the eaves there were still two men who looked quite strong.

When Baili Qingfeng came, he saw a sedan stop at the gate of Tiejian Gate, and two fierce men stepped down from the car, and one of them also came out with an umbrella: "Sixth brother and twelve brothers, you are here, and now except for the ninth brother, they have all arrived." ”

"What's going on? Why did Master Lu Shao summon us all over?"

"Didn't the head of the family go to Char with the elite of the door yesterday, and I went to contact him since this morning, and I called from the Green Water Villa at nine o'clock, and something happened. ”

"What's wrong, what's wrong!?"

"Let's go inside!"

The group quickly entered the courtyard.

"There was another one who didn't come. ”

Baili Qingfeng thought about it, but he still planned to wait for everyone to arrive before making a move, so as not to slip through the net.

But just waiting for it was boring.

"It's raining a lot. ”

Baili Qingfeng raised his head and looked at the dark clouds overhead, as well as the electric light that shone from time to time in the clouds.

Practicing the idea of Thunder Domination makes him extremely sensitive to the electric potential of the outside world.

"The current electric field is 3×103N/C, if I stand here and don't move, it will definitely make the people of the Iron Sword Gate suspicious, so in order not to startle the snake, find something to do, calculate the amount of charge in the thunderstorm cloud. ”

Baili Qingfeng picked up a small pebble, came to the side of the wall, used the wall as a blackboard, and calculated.

Considering the cloud as an infinite plane, there is a negative charge on the ground, and the electric field magnitude is E=σ/ε0, σ is the amount of charge carried in the cloud per unit area, then ......

σ=ε0E=（8.85×10^12·s^2·c^2/kg·m^3）（3000·v/m）≈2.7×10^8C·m^2

Glance.

Baili Qingfeng was staying at the gate of the Iron Sword Gate, and this scene naturally aroused the suspicion of the two people at the gate of the Iron Sword Gate.

One of them had a bad complexion, and he was forced to ask for his identity.

However, when they saw the formulas on the walls, they instinctively felt that such an open-minded and studious student could not be the enemy of their Iron Sword Gate, and it was raining outside......

Eventually, the man just glanced at him, and hid under the eaves again, ignoring him.

Baili Qingfeng finished counting, looked at the door, and didn't come yet, so ......

Let's calculate the electric field strength on the surface of these raindrops.

"Wow!"

At this time, a sedan stopped again in front of the Iron Sword Gate, and a middle-aged man got out of the car accompanied by a person.

"Brother Nine is here, and the other big brothers are already waiting for you inside. ”

One of the guards at the door hurriedly stepped forward to help hold the umbrella.

The man known as Brother Jiu nodded and walked towards the courtyard.

"It's finally here. ”

Baili Qingfeng stopped the boring idea of calculating the strength of the electric field, stepped forward, and walked towards the door of the Iron Sword Gate.

As soon as he moved, although he attracted the attention of another person, the person didn't pay attention to it, until he saw Baili Qingfeng actually coming straight to their Iron Sword Gate, and when he arrived at the door, he scolded: "Which child, this is not the place where you came, go aside." ”

However, when the man known as Brother Jiu heard the voice, he turned his head and glanced at Baili Qingfeng, just like that, he suddenly remembered a document sent to them by the head of the meeting yesterday, which said that he was going to Char City to deal with the people......

"Baili Qingfeng!?"

Baili Qingfeng raised his head and glanced at the man named Brother Jiu, and then, ignoring the man's loud shout, he closed the door that had just been pushed open.

He......

The ninth brother, including the two Iron Sword Sect people, was all locked up in the martial arts hall.

"Quick, go inside, notify Master Lu, inform the other brothers, the enemy is coming!"

The face of the man known as Brother Jiu changed greatly, and he stared at Baili Qingfeng who was closing the door with a wary expression, and slowly retreated.

And the Iron Sword Sect disciple who had previously reprimanded Baili Qingfeng flashed a trace of fear in his eyes, and quickly ran away, retreating side by side with Brother Jiu, watching Baili Qingfeng close the door, and then lock the copper lock hanging on the door, and then put the key in the pocket of his pants.

"Baili Qingfeng, you are so bold, we didn't look for you, you actually took the initiative to send it to the door?

A loud shout came from inside the Iron Sword Gate.

Suddenly......

Baili Qingfeng, who thought that these people would rush up in anger, and used his fist and swordsmanship to fight with him was obviously stunned, and the next moment ......

I can't wait for the Iron Sword Sect people to assemble......

Umbrella falls.

"Boom!"

Draw your sword and unsheath it!

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(I don't know why I can't write the formula, so I won't write it in the future.) ）