Alien Lord

"However, so what if it is a black gold stone, I can still break it!"

"Look at the move, Fiery Slash!" Ma Xuyun shouted loudly, the treasured knife in his hand turned into an orange light, and then, there was a loud explosion sound.

"Boom......!" The underground water transportation channel swayed for a while, which shows how powerful Ma Xuyun's move was just now.

"Plop, plop...!" Countless gravels fell into the water, making a loud noise.

"Zi...!" The water in the underground water channel was poured on the fiery red wall, making a sound, and then...

"Crack...!" A few times, a large piece of the hard black gold stone on the wall collapsed.

"I was hit by these people by mistake. The thermal expansion and cold contraction made them speed up the speed of destroying the wall of the black gold stone. It was not bad for transportation!" Lin Ze on the ground smiled.

Originally, it would take about half an hour for Lu Ming and the others to get through the stone wall built by the black gold stone, but now it seems that they can get through it in about ten minutes at most.

Why? The reason is very simple, that is because of thermal expansion and contraction.

Using the principle of thermal expansion and cold contraction to destroy stones was very common in ancient China.

In ancient times, when there were no explosives, this method was used to mine ores and stones, and to destroy hard stones during road construction.

First place a lot of firewood on the stone that needs to be mined or the stone that needs to be destroyed, and then ignite it to heat the stone directly until it turns red. Then, pour a pot of cold water directly on the red stone.

"Zi..." With the sound of these voices, you will miraculously find that this hard stone begins to shatter...

This method is most suitable for destroying stones, but if you want to mine stones, it is another method.

This method takes longer, and the principle is the expansion principle.

First drill a few holes in the stone with an iron drill, then nail a piece of wood about the size of the hole into the hole, and then pour water on the wood continuously.

After the wood is soaked in water, it will start to expand immediately, and then the stone will crack. …

"Haha..., God helped me so much, with this water, we can go out faster, hahaha...!" Seeing a large number of black gold stones pouring water After a quick breakdown, Lu Ming and Ma Xuyun laughed loudly.

"Captain Ma, come on, we have to open the hole as soon as possible, the enemy may start to move now!" After being happy, Lu Ming knew it very well, so he urged Ma Xuyun to speed up.

"Okay, Commander Lu, I understand!" After finishing speaking, Ma Xuyun mobilized all the zhenqi in his body, turned it into flames, and smashed towards the black gold stone wall in front of him.

At the same time, Lu Ming on one side also mobilized the whole body's true energy, which also turned into orange-red flames, burning the black gold stone wall. Black gold stone burst naturally.

Some people may be wondering, why both Ma Xuyun and Lu Ming's zhenqi are of the fire attribute? Wouldn't such a coincidence be too coincidental?

In fact, not only Lu Ming and Ma Xuyun's true qi is of the fire attribute, but in Heifeng Pirates, no, in the thousands of miles of sand sea, most of the warriors here lose the fire attribute of their true qi.

The temperature in the Wanli Sand Sea is extremely high, and it is lost in the winter when the temperature is the lowest. The temperature is 25-6 degrees. In normal times, the temperature is around 37-8 degrees. When the temperature is high in summer, it is 60 degrees. not a problem.

Such a high temperature has caused the aura here to be of the fire attribute above the eighth floor. Therefore, most of the true qi of the warriors who practice here loses the fire attribute.

Changing to a warrior of water attribute to practice here, isn't this asking for trouble? !

Practicing water attribute martial arts in a place full of fire aura like Wanli Sand Sea,

This warrior is either a fool, or his head was hit.

"Boom boom boom......!" Loud explosions came from the underground water transport channel, and many people on the ground heard these abnormal movements underground.

Soon, these abnormal movements were reported to Lin Ze's City Lord's Mansion.

"My lord, someone from below reported that there seemed to be abnormal movement underground. Many people heard it. There was an explosion below. I went to have a look and found that there seemed to be someone fighting underground." Tie Ying looked puzzled. Came to the city lord's mansion and said to Lin Ze.

"Hehe, don't make a fuss, I have already discovered the underground enemies, and now there will be battles below, because I sent people down to eliminate these people, so don't make a fuss!" Lin Ze replied with a smile.

Tieying and others don't understand the situation underground. It takes a lot of time to understand such a complicated underground water transportation channel. In addition, the people who sneaked in this time are some powerful warriors. Let Tieying and the others deal with it. Lin Ze believes that people like Tie Ying will definitely suffer huge casualties, and even the masters trained by Lin Ze such as Tie Ying will also suffer heavy casualties. Therefore, this time to eliminate the invading Lu Ming and others, Lin Ze himself came .

"Your Excellency is wise!" Tie Ying looked at Lin Ze with admiration, he didn't expect that Lin Ze had made such preparations long ago.

"Tie Ying, later you take someone to the big water intake point on the left side of the east city wall, and then bring back those ground mice." Lin Ze ordered.

"Yes, my lord!" Tie Ying went down quickly.

................................................... .........

At this time, in the camp of the Black Wind Pirates, Xiao Quan didn't even look at Liu Yu and his party who knelt on the ground and pleaded guilty. All his attention was now on the East City Gate.

"Now Lu Ming and the others should have arrived at their destination, that is to say, there will be chaos at the East City Gate soon, and I have to make preparations here first." Thinking of this, Xiao Quan directly said to his eldest son Xiao Chengji : "Inheritance, you go to the heavy cavalry unit to prepare for the attack now, and wait for my order!"

"Father, what do you mean..." Xiao Chengji was at a loss, he couldn't figure out why Xiao Quan asked him to go to the heavy cavalry now.

This time the attack has failed, even if the next attack is to start, the heavy cavalry will not be allowed to attack.

Asking heavy cavalry to attack a large city with a height of 40 to 50 meters is not an attack, but a death.

"Chengji, Lu Ming and the others have sneaked into Black Sand City!" Having said this, Xiao Quan showed a complacent expression on his face.

"Father, is this......, is this true?" Xiao Chengji asked with a look of disbelief.

He had already discovered that Lu Ming and the personal guards were missing. At that time, he wondered in his heart whether Lu Ming and these personal guards were sent by his father to do some special tasks.

Unexpectedly, this is indeed the case, they were all sent by their father to sneak into Black Sand City.

"Of course, you didn't notice that Lu Ming and Weifu's personal guards are gone. They were all sent by Weifu to infiltrate Black Sand City." Xiao Quan explained with a smile.

"Father, how did you let them enter Black Sand City? Could it be that you have some secret channel?" Xiao Chengji was worthy of being Xiao Quan's most important eldest son, and soon thought of the reason.

"That's a pretty good guess, Chengji, father, I do have a secret passage leading to Black Sand City, hehe..." Xiao Quan smiled proudly at this point.

"Really!" Xiao Quan's affirmative answer relieved Xiao Chengji's nervous heart.

"Father, you have such a secret passage, why didn't you say it before, we don't have to lose so many vanguard troops, can we directly attack through the secret passage soon?"

This is exactly what Xiao Chengji couldn't figure out. If there was a secret passage, why did Xiao Quan let the vanguard army go to die? Wouldn't it be good to directly send the army to enter the Black Sand City through the secret passage?

"Well, this secret passage is not big, it can only accommodate small troops to enter." Xiao Quan explained, and at the same time, he decided in his heart that after recapturing Black Sand City this time, he will directly dig a concealed passage.

If something like this happens again in the future, it is completely possible to enter the city through this secret passage.

"Oh, so it is like this!" Xiao Chengji said with a dazed expression.

"However, father, can you tell me where this secret passage is?" Xiao Chengji's face was full of curiosity.

Not only Xiao Chengji, but even other people, including Liu Yu who knelt on the ground pleading guilty, were full of curiosity in their hearts.

"In fact, everyone has seen this secret passage, but you don't think of it!" Xiao Quan replied with a smile, he was not going to keep the matter of the underground water transportation channel a secret.

He sent nearly 4,000 troops to sneak into the underground water channel. This matter will be exposed sooner or later. Therefore, he is not hiding anything now and is ready to speak out. This will also increase the loyalty of the underground people to him.

After all, Xiao Quan didn't hide such a secret from his subordinates, which means that he really regarded his subordinates as his own.

Who would not want to work and serve such a person who regards himself as his own? !

"Oh, we have actually met before." Xiao Chengji began to recall in his mind, trying to find some special memories.

Unfortunately, he searched all the memories, but still couldn't find this 'special' memory.

"Hehe, don't think about it anymore, you can't think of it." Xiao Quan said with a smile.

He didn't hold back anymore, and said directly: "Chengji, you forgot about the wells all over the city wall!"

Xiao Quan directly solved the puzzle.

"Water well?" Xiao Chengji frowned.

The next moment, he suddenly realized: "Father, could it be..."

"Yes, it's the underground water channel." Xiao Quan replied with certainty.

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