Zong Xin said: "No matter how good a person's light skills are, he will never stay in the air all the time. But if there's a giant Kong Ming lantern that makes us fly, it's definitely useful for escaping. As long as the wind direction is right, you can even use Kong Ming lanterns to bring people into the city, and the army will descend from the sky and open the city gates. In this way, it is more effective to conquer the city. ”

Zhao Kuangyin nodded secretly, when he has time, he must experiment to see if he can make a Kong Ming lantern fly with a few people. As long as you can fly above the height of the city wall. You don't need many men and horses at all, as long as a team of elite soldiers enters the city and opens the city gates, you can capture the city.

This method is very good and can be used as a reference.

Tianya asked, "Master, does this matter have anything to do with the expansion and contraction of heat and the rise of heat?"

"Stupid~ Kong Ming lantern is on fire, because the heat rises, so it can drag the Kong Ming lantern to fly into the sky, as for the most basic principle of the rise of heat is thermal expansion and contraction. The heated air becomes larger and the relative density becomes smaller. The specific gravity of hot air is different from that of cold air, so it can support the Kong Ming lantern to fly. If you want to make a huge Kong Ming lantern, you can't do it without understanding the reason. ”

Tianya still doesn't quite understand, but what the master teaches does seem to have some effect. But these things are too technical to understand.

Zong Xin continued: "Tianya, your horizons must be broadened. The place where we live is actually not big, more than seventy percent of the world is water, only about thirty percent of the land, don't think that the sea is the end of the world, there is a wider world on the other side of the sea. When I have time, I will take you on a trip to the Silk Road and meet people who look completely different from us. ”

Tianya said: "Master, you always say that you will go when you are free, when will you be free?"

"This ...... Who knows. Anyway, you should be free before you leave the school. Zong Xin said: "Okay, it's time to come up with some questions you like to practice your brain." There was a room in which there were three people, and there were three candles on the table. A and C each take care of one of the candles, and outside the house you may command three people to light or blow out the candle they are watching. The problem is, you are only allowed to enter the house once, and you must distinguish which of the three people to take care of and which to smoke the candles. ”

As soon as A is called outside, A lights the candle. The candle that is lit must be the one that A is looking after, but it is not known which one is the one that has been cared for by C. If A has already lit all the candles, even if he enters the house, he will not know which candle they will take care of.

This question is strange, but it's interesting, and Zongxin likes to come up with this kind of problem for everyone to do.

Several girls and even Han Lingkun were counting with their fingers, and there were only three candles each, but why couldn't they be counted? No matter who was asked to light the candles, the other two would not be able to tell the difference.

There were three people present who suddenly laughed, namely Li Yu, Zhao Kuangyin, and Tianya. The three of them quickly came up with the answer.

Li Yu said: "Master, I thought of it. Call A first, let A light the candle, and when the candle is burned, then call his candle to be lit. At this time, when you enter the house again, the candle that is burning is A, the candle that is burning is enough, and the candle that is not moving is C. ”

Everyone nodded, Li Yu is such a smart mind, and he really only needs to enter the house once to know which candle A and C are taking care of.

"That's the right answer...... However......" Zong Xin said regretfully: "Brother Zhao, do you have any better way?"

Zhao Kuangyin said: "My method is similar to Brother Li, first ask A to light the candle, but you don't need to wait for the candle to finish, just wait a while, and then let the lit candle enter the house later." The candle lit by A first must have burned a little, and it is lower than the existing candle, so it is A, the newly lit candle is already, and the one that has not moved is C. ”

Zong Xin nodded and said, "Well~ Yes, this answer is not too wasteful, but it is only a mortal hand." ”

Tianya said: "Master, listen to my method." ”

"See what the poor monk's apprentice does. ”

Tianya said: "Let A light the candle first, then blow it out, and then let the lit candle go directly into the house." Immediately touch the wax head with your hand, the one that is still warm is A, the one that is cool is C, and the one that burns is already. ”

Everyone's eyes lit up, this kid is too smart. Zhao Kuangyin and Li Yu's methods are similar, but Zhao Kuangyin is a little more economical and does not need to light the candle before entering the house. But Tianya's method is completely different two levels, he knows that after the wax is lit, the wax head will not only glow, but also heat, and he only needs to touch the wax head to know which candle has been lit.

is worthy of being a disciple of Zong Xinxuan, with his wisdom and intelligence, he will definitely be a dragon among people in the future, not to mention that he also has Zong Xin personally teaching martial arts, plus Zhao Kuangyin and the people around him will teach him a little kung fu, and the future is limitless.

Among the questions Zong Xin came up with, the simplest one was this one, and there were three people who came up with the answer. Although Zhao Kuangyin and Li Yu's answers are very ordinary, ordinary people can come up with them as long as they think about it, but Tianya's answer is really amazing, and ordinary people will not want to use this method at all.

In addition, Zhao Kuangyin and Li Yu are a little skeptical about life. I don't even have a child who is smart.

But this is also to be expected, whether a person is smart or not has nothing to do with age. Zong Xin's questions are actually not difficult, but they can test a person's intelligence and reaction ability, which Zhao Kuangyin sighed to himself. Li Yu also felt that a monk like Zongxin was too terrifying, he was still so young now, and he was already teaching disciples. Not to mention how terrifying Zong Xin is, just seeing him as a little apprentice is enough to make people feel frightened.

Li Yu was already thinking about another matter, if it was necessary to kill Zong Xin, he would also add his apprentice and two wives, and even destroy all the Youyun Eighteen Horsemen outside, otherwise how could he be at ease?

When the teaching was over, the group stopped. Youyun Eighteen Cavalry immediately prepared lunch, and rested for an hour after lunch, during which Tianya meditated beside him, and Zong Xin, Zhao Kuangyin, and Li Yu were talking to each other. The demon and Dugu Xingyue will occasionally learn martial arts, and sometimes they will teach the world's general fists and swordsmanship.

Time passed quickly, but Zongxin was not in a hurry at all. Sometimes they would ride a wolf in the wilderness and enjoy the speed of the wind, but they would have to go back even if they ran far away to take care of the carriage.

The relationship between Li Yu and Han Wenmei heated up rapidly, and the two almost reached the point where their husbands and wives followed. Sometimes Han Wenmei feels that her brother is in the way, because if Han Lingkun is there, her sister will not do any bold acts. Otherwise, in terms of the relationship between Li Yu and Han Wenmei, they would have done something out of the cabinet a long time ago.

Han Lingkun was full of displeasure, and later learned that Li Yu was the third prince of the Tang Dynasty. also admires Master Zongxin, his sister can really be a princess, and the third prince of the Tang Dynasty is his brother-in-law. It's a pity that Li Yu is blind, otherwise everything would be too perfect.

It wasn't until the beginning of winter that the group walked to Huainan, Shouzhou. This place is located on the bank of the Huai River, the barrier in the south of the Yangtze River, and it is a military artery that naturally deploys heavy troops. Huainan was originally not a big city, and the main role here was to garrison soldiers, but because soldiers needed to consume and have fun, it gradually formed a scale, and finally became what it is today.

I drove in from the official road and was quickly stopped. The scouts had already discovered Zong Xin and his party, and immediately returned to the camp to report, and then the Huainan Yi Defender made Huangfu Jixun immediately lead his troops there.

The two teams met, and the disparity in strength was huge. Huangfu Jixun stationed 50,000 troops in Huainan, and this time he casually ordered 3,000 men and horses, but there were only about 20 people on Zongxin's side, and the two sides were not comparable at all.

Huangfu Jixun came to the carriage after dismounting, and then said respectfully: "Dare to ask if it is Master Zongxin in the carriage?"

Zong Xin lifted the curtain and walked out, and the eighteen horsemen had already put their hands on the hilt of the knife at their waists, ready to start a battle at any time. The Eighteen Horsemen are not so smart, they only know one thing, as long as Zong Xin says to kill, they will rush forward immediately. As long as Zongxin said not to kill, he would not rush forward for the time being.

Although the Eighteen Riders of the Clouds are not smart in their brains, their actions are smart. Since you know that your brain is not smart, then don't think too much, give yourself all to a smart person, let him control his actions. It's better to do that than to be smart.

Zong Xin waved his hand, and the Eighteen Riders of Youyun immediately let go of their right hand, and then straightened their waists and sat upright on top of the giant wolf. There are nine people on the left and right, each of them is bald, but the beard on his mouth is very arrogant, and the most terrifying thing is their fierce eyes, which don't look like any Taoist monks at all, they are simply professional killers.

Zong Xin was white-looking, and he looked kind with a smile on his face. But the most frightening thing is this little monk, because he can control so many terrible monks.

Although there was a huge disparity in the strength of the two sides, Zongxin's momentum overwhelmed the opponent's 3,000 men. Just looking at this group of giant wolves is terrifying, the fur of this group of wolves is so thick, I'm afraid that ordinary swords can't hurt them at all.

Zong Xin clasped his hands together and said, "Amitabha Buddha~ Why is this donor blocking my way?"

Huangfu Jixun said: "This is the shore of the Huai River, the barrier south of the Yangtze River, and no army other than the Tang Dynasty can go any further." ”

"The poor monk didn't have any troops, just some casual ones. ”

"They are much more terrifying than the army, don't you see that the whole body of the lower official is trembling?" Huangfu Jixun said: "Master Zongxin, if you want to enter Jinling by the way, please also ask these eighteen masters and their mounts to stay outside Huainan, and the carriage will enter the lower official without a word." ”

Huangfu Jixun is really afraid of Zongxin, a monk, and the rumors in the rivers and lakes are terrible enough. It is not called anything if he alone resists 8,000 men and horses, because he is a high-ranking monk. But these eighteen monks are really capable, they rushed into a reserve, and 6,000 people and horses were cut down by them.

Huangfu Jixun didn't know that the martial arts of this group of people came from Zongxin, but he felt that they were far more powerful than an army. Now that I can see it with my own eyes, I have confirmed my conjecture. The eighteen eminent monks have extraordinary martial arts, and if they cooperate with their mount, the giant wolf, if they take the opportunity to sneak attack, they are afraid that Huainan may not be able to hold it down.

These giant wolves have solid fur and sharp claws, they only need to keep rushing and killing in the Huainan Yi defenders, and the soldiers who see this group of monks will be frightened and scattered, and they dare not take up arms at all except to escape. If there is another army to cooperate with the main attack, what is the 50,000 horses in Huainan?

It's terrifying, I often hear that masters will have strange beasts to act as leg power, but the mounts of Master Zongxin and his party are also too powerful, right? Why are they such huge wolves? These wolves also flashed very smart eyes and strong combat power. It's too dangerous to let them into the city.