Zuo Ci was indeed cheated, so he just scratched the screen of the phone twice and saw the camera function of the phone. He had to teach Huo Hai his whole life's teachings to Huo Hai for nothing. Why did he teach it in vain? Because even if he learned how to use a mobile phone, he would not have a mobile phone!

"I didn't expect you to cheat on your own people." Zuo Ci looked at Huo Haidao with some resentment.

"How can I say it's a trick? I have sincerely taught you how to use your mobile phone. This thing is something that ordinary people can't even see.

Well, you won’t want to break your promise! Actually, it doesn’t matter. At most, I will tell you that you are a trustless person and tell you not to believe you in the future and not to play with you." Huo Hai smiled.

"Anyone can teach you some Taoism, but it is not as important as my Taoist heart." Zuo Ci admitted to the death.

However, when he spoke, he kept staring at Huo Hai's mobile phone. He always felt that this treasure should be more than the functions displayed by Huo Hai.

"Then we'll decide. Now we have to hurry up and work. Let's lie together and talk about this technique well." Huo Hai said with a smile.

He caught another weakness of Zuo Ci. Practitioners like him generally would not let their hearts be stuck, leaving behind things like inner demons, which would affect his practice.

Zuo Ci looked at Huo Haidao with some confusion, "The monks from the Han army have attacked us twice in a row. Why are you sure that Gongsun Zan will step into this trap?"

Huo Hai smiled and said, "In addition to the fact that I concluded that Yuan Shao would compete with Gongsun Zan for merit, it was also because it was an open conspiracy. Once Gongsun Zan did not pursue the Qifeng Cavalry, the supply line in the rear of the Han army would be unstable."

Upon hearing this, Zuo Ci nodded and said, "You have learned the military chapter of Taiping Qing Ling well. However, Baima Yicong is the most powerful army in the north. It may be difficult for you to rely on these untrained Yellow Turban Army to deal with them."

"The cavalry that has lost its speed advantage may not have been able to attack the infantry array. We only need to successfully make Gongsun Zan lose its speed advantage. Just look at it! The Yellow Turban Army that has been trained for three days is also useful." Huo Hai said confidently.

Since Huo Hai said that, Zuo Ci didn't say much and watched Huo Haishi Wei quietly.

Soon, Huo Hai organized everyone to continue digging pits. The 20,000 people were still very labor-intensive. In about two hours, more than a dozen pits that could hide people were dug. When the Yellow Turban soldiers equipped with sickle knives entered these pits, more than a dozen iron pipes more than two feet long were taken out of their backpacks by Huo Hai and distributed to the team leader who sneaked into each row of pits.

Both ends of this kind of iron pipe are bent, and two lenses are stuck to the inner wall at the turn, so that they can see some situations outside when they are in the pit.

This is even a periscope, and it is also the reason why Huo Hai did not continue to take out the mirror. Its value on the battlefield is not comparable to wealth.

Similarly, this tube is also the trachea they ventilate with the ground. After all, a tunnel is more than ten meters long and contains more than a dozen people. They need to breathe underground.

"The wooden shield is covered with iron sheets and buried with soil. Each person must have a double layer of protection of large wooden shields and iron sheets above his head. The gap between each shield must be two inches apart. After the enemy comes, the sickle hook knife will hook horse hooves from the ground on the barrels in these gaps. The enemy sits on the horse's back. The gun blades are very penetrated through the soil layer. The iron sheets and wooden shields will hurt you. Moreover, they have no time to stop and dig out the soil and dig out you." Huo Hai told the Yellow Turban soldiers who were hid in the pit and were a little nervous.

After feeling the solidity of the large wooden shield more than three inches thick on my head and the iron sheet about one inch thick, many soldiers who were about to spend a few hours in the darkness were relieved.

Huo Hai specially prepared some sweets for these soldiers hiding in the pit to soothe their mood.

After arranging the soldiers in the pit, the horse pits in three directions were dug, and some sharp bamboo piles were also arranged into the pit.

"Spread caltrops in the grass and spread them tightly. Once the enemy enters the preset position, the main force of the gun shield must block the enemy's retreat from the two wings to the middle as soon as possible..." Huo Haishi arranged in detail and explained to the soldiers what to do. However, the soldiers who had been on the road all day and worked hard for the middle of the night had already become drowsy.

"Oh no, I overestimated their fighting will before." After hearing the snoring one after another during the explanation, Huo Hai said a little depressed.

"It is beyond my imagination to have such a situation now. Those who do not do their best to survive will die if they die!" Zuo Ci said indifferently.

"People who have never died don't know how miserable death is. They are just a little ignorant, but they don't deserve to die. Is there any way to help them?" Huo Hai said depressed.

"Don't you want to learn Taoism? Let's start with the rain! Before Gongsun Zan comes, wet them a little rain so that they will wake up. As for the vibration of the horse's hooves in the pit, the vibration of the horse's hooves should wake them up!" Zuo Ci thought for a while and said.

"Yes, yes, you can teach me the knowledge of Taoism while they didn't come." Huo Hai became interested and found a place suitable for waiting and watching. He spread the big shield on the ground, draped the blanket woven weed on his back, put on the straw hat, and crawled on the big shield and looked at Zuo Cidao.

"To put it bluntly, it is the degree of understanding of the sudden changes in various elements of the world. You should have seen a lot of records of these knowledge on Taiping Qingling!" Zuo Ci also found a big shield, but he did not lie down like Huo Hai. He raised the cloth in his pocket in front of him, then sat cross-legged on the big shield, began to close his eyes and breathe, and practice.

"After reading the records about this, I didn't believe a single word. Now it seems that it has the same effect as the 'chemical reaction' in our unknowing place. No wonder all the records in ancient books are five-shaped yin and yang." Huo Hai said with a sudden enlightenment.

It turns out that manipulating these mysterious things in different time and space can really play a big role. Fortunately, chemical reactions are also effective in this time and space.

"Okay, I haven't promoted science and technology here yet! I have to learn the knowledge of Yin, Yang and Five Elements here first." After Huo Hai mocked himself, he began to ask Zuo Ci for advice on the application of Taoism.

For the sudden change reaction of Taoist art, Fu Paper is a carrier, combustion is a catalysis of the sudden change reaction. Now systematic techniques are summarized by ancestors through countless experiments, and the complexity of the elements is no less than that of chemistry.

The so-called rain praying talisman is to use talisman paper as a carrier, burn the materials for drawing talismans, and then trigger the sudden change of these raw materials, making them play a role similar to the dry ice bomb in the clouds when artificial rainfall.

Its difficulty lies in how the talisman paper burns and rises to the clouds that are over 10,000 meters high, and how the drawn characters burst out with maximum power after a sudden change reaction, which requires a certain arrangement.

So, although those things like ghost drawing talismans on the talisman paper do not seem to have any composition, there is actually a lot of knowledge inside, just like the arrangement of chemical elements.

As for finger tips, most of the casters are calculating the amount of various elements and the time required for sudden reactions. They need to write them according to the amount, order and order.

After Zuo Ci explained the materials needed to draw the rain prayer talisman to Huo Hai, he demonstrated to draw a talisman on the soil and let him practice.

Don’t think that drawing talismans is as simple as writing characters on talisman paper. It is difficult to write cursive characters in the same way, and the stroke order cannot be wrong. You must also grasp the force accurately and use the materials just right to achieve a certain effect.

The same is true for drawing talismans. People who draw good drawings are much more powerful than those drawn by newbies who have just learned it. For example, the talismans drawn by Zhou Ling's seven-member group can cause strong winds and heavy rains anywhere within a hundred miles. Zuo Ci can also reach this level with financial resources and sufficient raw materials. If it is close, his talismans can even bring hail to a small range.

Zuo Ci's primary requirement for Huo Hai was to draw a talisman that would drizzle within five miles of the formation, so that it would be enough to wake up the dozing Yellow Turban soldiers at critical moments.

Anyway, it was boring. Huo Hai first drew the font in the fence on the grass. It was not until an hour later that the sky was slightly brighter that he could barely copy the words of the rain prayer talisman drawn by Zuo Ci in the order of strokes and fonts. As for the standard marks and the lightness and weight of time and strokes, Zuo Ci did not make any evaluation. Huo Hai naturally knew that the reason for not making evaluation was that the things he drew were zero points, and he did not have the qualification to make Zuo Ci evaluate them at all.

"No wonder you need twenty years of cultivation to easily draw talismans. It turns out that this thing is really no comparison to painting, and it is simple and even many times more difficult to practice calligraphy." Huo Hai sighed.

He was not a special student in this area in his later generations. Moreover, as he painted, he had discovered that even if he was a special student in this area in his later generations, he might not have been able to draw well.

Because, even if the characters are drawn on the soil, each time they are formed, there will be a kind of energy that Huo Hai can feel beating. Perhaps, to draw the talisman well, you also need to exercise your own mental power. The so-called mental power covers things that are not very specific. They may be will, IQ, brain activity, or they may not be.

In short, without day-to-day practice, it is difficult to improve your level, and the difficulty is not lower than that of practicing martial arts. Now he has enough energy to practice martial arts, so he can no longer spend time practicing talisman drawing and other Taoist techniques. After all, people's energy is limited, so he has to find ways to take shortcuts.

After another hour passed, Zuo Ci was too lazy to see what Huo Hai was thinking about, so he practiced breathing and breathing on his own. After the sky was completely bright, several riders rushed over. They were wearing the standard equipment of the Wind Rider and came to send a letter to Huo Hai.

"After half an hour, Chu Yan's brigade will pass by here, and Gongsun Zan is following less than 500 steps behind. The place is wide and the sight can reach at least five miles. That is to say, at most, after a quarter of an hour, there will be no more movement here. Once someone moves, it may be discovered by people under Gongsun Zan." After Huo Hai received the report from the Exploser, he informed all the generals.

"Let's go and wake up everyone." Gao Sheng knew that the battle was about to start, and then headed towards Huo Haidao.

"No, we have 20,000 people! Such a big stall has been spread out on both sides. You guys go and shout at each other. When will you go? Before you can wake them up, Gongsun Zan may have arrived. Moreover, it is difficult for them to cheer up when they just woke up." Huo Hai stopped him.

Now the other party can see the situation here in less than a quarter of an hour, and it is too late to go in time.

Gao Sheng asked Huo Hai, "What should we do?"

Huo Hai glanced at Zuo Ci who was meditating and said to him, "I want to try drawing a talisman."

"Is that so? How sure?" Zuo Ci, who was about to look at Huo Hai's joke, glanced at him without hesitation.

No matter how certain Huo Hai was, he was ready to attack Huo Hai, because when he closed his eyes and breathed in, he had already thought about not let Huo Hai learn his Taoist skills easily. At least, Huo Hai needed to get more good things from unknown places or good skills to learn for himself.

"This is very important. I just don't know what the effect will be. I borrow your talisman paper and materials first. Uh, not only do you need to draw the rain praying talisman materials, but also some other materials, such as Dan Jing, Shuogen, Qian Ming..." Huo Haishou wrote a lot of materials he saw in the medical chapter of Taiping Qingling.
Chapter completed!