The urn city, the back watchtower.

Huangfu Song and his generals arrived on time.

Su Yue then explained in detail the pattern of the mechanism formation that he had found.

"The rails are crisscrossed and spread alleys in Yecheng. Each 'mechanical instrument' in the array can move up, down, left and right, and on all sides. It is a trajectory of the font of the 'field'. For so many 'mechanical instruments', there must be a 'cardinal' to be dispatched in the center."

Huangfu Song understood: "The so-called 'cardinal' is like the 'order flag' of the military formation."

"Yes." Su Yue paused his head slightly: "The mechanism formation is also a military formation. It is nothing more than changing the troops and horses in the formation into various instruments. The soldiers and weapons are hidden in the mechanism to kill the enemy."

Huangfu Song could see through one point: "Just break through the heart of the formation and destroy the 'cardinal', this formation will be destroyed without attacking."

“That’s exactly that.”

After pondering for a moment, Huangfu Song said again: "I dare to ask the chief official how to find the 'cardinal'."

Su Yue said, "General, don't be impatient, please listen to me and say slowly."

"This mechanism array is spread throughout Yecheng. It is not an exaggeration to say that it is a mechanism city. In one winter, the thief consumes all the iron in the city, which is to cast the "rail road" and "rail tools". The mechanisms walking on the rail are divided into five categories: attack, defense, trap, obstacles, and confusion. Corresponding to it: towers, walls, cunes, miscellaneous, and doors. The so-called shooting from a high or low level, all look at the towers, corner buildings, warehouse buildings, and so on, all hidden murderous intent.

This is an "attacking weapon". All walls, walls, vassals, and fences are all "guarding weapons". Anyone who sees high cemetery towers on both sides will have heavy troops around them. This is a place where they are trapped, so it is called "screw weapons". Anyone who encounters baggage, wooden boxes, sacks, firewood piles, groceries, and other things that block the passages are all "blocking weapons". If they encounter house gates, inner gates, village gates, market gates, and alley gates, they must not enter. This is a "confusing weapon". The direction of entering is completely lost, and the inch will be chaotic."

"Attack, defend, trap, block, confusion; building, wall, veil, miscellaneous, door." Huangfu Song kept it in mind and asked again: "But where is the 'cardinal' hidden?"

Su Yue nodded gently: "The so-called orders are prohibited. The 'cardinal' is to dispatch the orders in the center and issue orders. In this way, the instruments in the array can operate properly without making any mistakes. Similar to the military formation, those who convey orders are either command flags or horns. Such as whistlebrating dynasties and wolf smoke, they cannot escape the word "sound and light". The general might as well think about it. On that day, did he hear strange sounds or see abnormal light?"

Huangfu Song shook his head: "I have never heard of it, nor have I seen it."

"This is what we can't figure out." Su Yue frowned and said, "How can such a large array of mechanisms convey messages to each other and move around, like an arm instructing you, perfectly?"

While thinking, a captain suddenly spoke, "Report to the general, he was intermittent and heard some untuned sounds of zither."

"Oh?" The speaker was unintentional, and the listener was intentional. Su Yue asked anxiously: "Is it true that I heard the sound of the zither?"

"It's not wrong." The captain said: "My little sister is quite familiar with music, and she knows a little bit about it. But what she heard in the city that day was intermittent and not a tune."

"In this way, there are also some people who are humble and humble." Several lieutenants said one after another.

After thinking about it carefully, Huangfu Song also nodded: "There is indeed a sound of the piano. As everyone said, it is intermittent and cannot be achieved. Therefore, I have never listened carefully."

"So that's it." Su Yue smiled and said, "No wonder there are no order flags, bronze mirrors, whistles, and so on in the city. The thief used the 'similar movement' to transmit the ears!"

"What is 'similar interaction'?"

"'Same-like movement', also known as 'Same-law-Mutual harmony'." Su Yue was about to explain in detail, but suddenly he kept a secret: "This city can be broken!"

"I hope to hear the details." Huangfu Song hurriedly clasped his fists.

"The general just needs to do so..."

How could Huangfu Song not believe the plan for the chief of Ji State: "Thank you for your help from the chief and historian. You must thank the city again."

Su Yue replied with a solemn expression: "It is all for the great Han Dynasty, and the officials dare not thank you."

Without further ado, Huangfu Song went to prepare for war.

Su Yue called Dian Wei and said with his ears: "Tomorrow, we will accompany the left general to enter the city. The first general is in the dark, and we will be in the dark. While the Yellow Turban thieves and the left general are fighting, there is no time to take care of them. We disguised ourselves as a team of Yellow Turban thieves and searched for the "cardinal" in the city. This is a strategy to attack the east and west, and capture the thief and the king."

"Yes!" Dian Wei nodded roughly: "Look for the 'cardinal' and trouble Mr. Su. Kill the thief chief and give it to someone!"

"Okay." Su Yue smiled happily.

That night, several amphibious craftsmen boarded the shore from the port and were pulled into the urn by a cattle and horse.

Early the next morning.

The gate of the thief was filled with flesh and blood slowly rose up. Huangfu Song's men were armed with armor and shields in hand. He led the Sanhe Knight to protect several mechanical craftsmanship and carriages out in a row.

"Beat the drum!" Huangfu Song gave the order, and the soldiers in the chariot immediately moved the engine spring.

The war drums on the car rumbling. The name of this car is "War Drum Cart". It originated from the Jili Drum Cart. However, compared with the Jili Drum Cart who "beats a drum in one mile and ring the bells in ten miles", the "War Drum Cart" wheel can beat the drum once every time it rotates, and is driven by the animal power in the car, and can beat the drums and sound gold, and never stop all day long.

Several carts beat at the same time. The drums were sounding at the same time, deafening. You can hear them inside and outside Yecheng.

It was so noisy, but the city was silent.

"The attack and defense are confused, and the walls are mixed with doors." Huangfu Song silently recited the cross formula and waved his sword and pointed: "Kill!"

"Kill--" The Sanhe Knight held up his shield and rushed forward.

When the Han army rushed over, the mechanism that integrated with the city's buildings immediately shot out arrows, but was blocked by the shield and equipment in the knight's hand.

"Arson! Huangfu Song roared angrily. The man levered the horse's speed and threw the oil jar in his hand out.

The knights followed suit and disguised as mechanisms in the market building, and then they were splashed with oil.

The rocket came back and the machine immediately ignited a fire.

As Su Yue said, in order to reduce weight, the machinery and equipment are mostly made of wood, which is suitable for setting fire. In just one winter, the thief cannot take the time to forge enough enamel armor to resist the rocket.

In a blink of an eye, a large torch was burned into a five-story building. The smoke rolled, and the Yellow Turbans hidden in it lit up fire. Ghosts and wolves howled, jumping off the roof. They split into pieces, and their brains burst into pieces and died. Many people were choked by the smoke before they escaped.

The houses and organs in the city are real and fake. They are spliced ​​together and formed into one, and there is no way to distinguish them.

But it is impossible for the entire house or street to be filled with instruments. It must be a wall, a building, a door, and other small parts that have been transformed into instruments.

However, how to distinguish is a difficult problem.

With Su Yue's cross mantra, Huangfu Song was able to successfully distinguish between real and fake mechanisms. He was able to hit every time and aim at it. The key to victory was to win.

Of course, ignite fires on all sides and burn the entire city. The problem is that if the city is set on fire, the people in the city will be buried in the sea of ​​fire with the Yellow Turban thieves. Indiscriminately, what is the difference between them and the rioters! Huangfu Song will be criticized. After the war, not only will he apologize for his death, but he will also affect his soldiers under his command.

But then again, if Huangfu Song really could bear the bad reputation of "butcher", burned the city with fire and burned all the people in Yecheng into ashes, or attacked the city again, it would be much easier. When he learned that the people in Yecheng would end, the people in the city would not dare to be in a gangster with the Yellow Turban thieves and wait for death.

When the official army sieges the city, they will definitely flock to flee.

Nowadays, even if you don’t learn to slaughter, Huangfu Song is making extremely fast progress.

One after another, disguised as a building in the city, was set on fire by the Han army. The Yellow Turban Strongman cried and called for his parents, burned into a human-shaped fireball, jumped down from all sides, and died of blood.

Half of the city, thick smoke rolls, covering the sky and the sun.
Chapter completed!