Long Xiang and Lu Su walked side by side, and Cao Xing walked aside to report on the situation.

Cao Xing's reconnaissance involved a wide range of areas, including the daily movements of Wu Jing's fleet, where Xiahou Yuan escorted the grain team, and the military movements around Shouchun.

Long Xiang looked normal at first, but when he heard the important information, he suddenly stopped and confirmed: "Cao Cao's grain route has been changed from land to water? Xiahou Yuan's troops are assembled in Lu'an, and they may have to be transferred to fight elsewhere? ”

"The news of changing the grain road came from Shouchun, saying that it was transported by boat to Longshu, and then the time taken to transfer to the land route was comparable, but it could save a lot of oxen and horses, and there were not many people in Shouchun who could levy it;

In addition, more than a dozen grain ships in the Central Plains have sailed into Shaobei, and they should wait until a certain scale to advance, these two pieces of information can corroborate each other, Xiahou Yuan's assembly in Lu'an is true, as for whether it will be transferred to other places, it is Mr. Zijing's guess. ”

Cao Xingyan looked at Lu Su, as if to say that I was just reporting the truth, and you have to come as for the situation deduction.

Long Xiang bowed his head and bowed his head and said to himself: "The adjustment of the grain route should be a military secret, how can Shouchun easily spread it?" I expected that there must be a deception in this matter. Wu Jing is also a veteran of the battlefield, so it stands to reason that he should not be fooled."

Lu Su had to echo: "I heard that after Sun Cao fought in Xiang'an, there was no movement in half a month, it is estimated that Cao Thief can't sit still, and now he wants to break the situation with a plan, but he doesn't know how to drag Jiangdong into a trap, Xiahou Yuan has just been transferred from Anhui County to the rear, and now he is suddenly gathering troops in Lu'an to prepare, I guess there is a new military operation."

"The situation is still unclear, and we can only continue to strengthen observation." Long Xiang shook his head and motioned for Lu Su to continue walking.

Cao Xing trotted to the front, and said with an embarrassed face: "General, if the Cao army's grain route is adjusted, the reconnaissance range extends to the west for dozens of miles, and the horses of the cavalry battalion will not be able to run at all, and it will be easy to be discovered by the Cao army or Jiangdong scouts."

"Don't worry, I have a solution."

Long Xiang pointed forward with a bamboo tube, and said calmly: "Not far away is the South City Tower, I will solve it for you when I get to the city." ”

"Really?"

Cao Xing was overjoyed when he heard it, could it be that the cavalry battalion was going to introduce new war horses? He didn't know Long Xiang's solution at all, it was actually the bamboo tube in his hand.

Since the construction of the watchtower along the river, Long Xiang has hung the telescope in his heart, this kind of weapon that can be used on the battlefield, and it does not require too complicated skills to make, so it was soon listed as a secret project.

At this time, the core technology of simple glasses is only lenses, and the bamboo tube is a gift from nature, and the metal pieces used to fix the bamboo tube can be seen everywhere in the forging workshop.

It took almost a year to start the project and finally polish the finished product into a usable product.

In ancient societies without precision instruments, this kind of experiment required a lot of trial and error, but fortunately, Long Xiang did not plan to mass produce it, and it was not necessary to waste too much material to do it in small quantities.

To be able to make a telescope so quickly, Long Xiang needs to thank Yuan Shu the most.

If it weren't for Yuan Shu's cultivation of a large number of craftsmen for his own enjoyment, Long Xiang would not have the ready-made talents to make glass, except for civil engineering-related professional skills, the rest of the traversers would not be able to make glass, generate electricity, make gunpowder, etc.

There are so many certificates to be tested on the project that Long Xiang has no time to expand other skills.

After a short time, several people climbed the tower.

Long Xiang handed the goggles to Cao Xing, and said while gesturing: "You put this object next to your eye, and then close your other eye like I did, and then try to see as far as you can." ”

"How far can you see?"

Cao Xing put the letter in doubt, followed the example of Long Xiang in his eyes, and was immediately shocked by the scene in the mirror.

I saw him stumbling: "General. How is the scene seen here exactly the same as that seen five or six miles away? ”

"A scene five or six miles away? Cao Dudu, aren't you talking nonsense? Lu Su frowned in disbelief.

Cao Xuan held up the telescope in front of Lu Su's eyes, and said excitedly: "Mr. close one, and then look into the bamboo tube, is there a tree with a crooked neck?" The last general used it to mark and measure the distance, and it was just five and a half miles away from the city gate. ”

"Hey, really."

Lu Su was shocked and sighed: "The knife marks on the branches are like shadows, this is really a good thing for reconnaissance, Yunqi, does this bamboo tube have a name?" ”

Long Xiang smiled: "Although I can't see Qianli for the time being, I still want to call him a clairvoyant." ”

"What a clairvoyant mirror, whether you use it to attack or defend the city, reconnaissance or counter-reconnaissance, it's like a tiger with wings."

Lu Su looked at it in his hand, and said to himself: "This clairvoyant mirror looks like glass, since Yunqi can make one, it should be able to make hundreds or thousands, I think the cavalry battalion can be equipped with the whole battalion, and the rest of the battalion generals can be equipped."

Long Xiang hurriedly interrupted: "Zijing thinks too much, this clairvoyant mirror seems simple, but in fact it is very troublesome to polish, and it also requires a certain amount of luck, several craftsmen spent nearly a year and wasted a lot of raw materials, and in the end it can only be made into less than ten, not to mention the cavalry battalion is equipped with the whole battalion, and the current governor of the five battalions cannot be satisfied." ”

"I'll have, right?" Cao Xuan immediately asked.

Long Xiang bowed slightly, "Zi Jing has this in his hand this is the first finished product assembled, and the remaining eight pieces should be able to be installed within tomorrow, if you want to rush back to the new city today, you can take it away directly in a while." ”

"That's great, the last general can be used for reconnaissance immediately, and this clairvoyant mirror can save a lot of scouts."

Cao Xing was so overjoyed that he reached out and grabbed it from Lu Su's hand, he mistakenly thought that what he was in front of him would be distributed to himself.

Lu Su grabbed the clairvoyant mirror and pulled it back, smiled and quipped: "Haha, don't worry, Governor Cao, let me play with it for a while, Yunqi is indispensable to you." ”

"Oh"

Cao Xuan bowed his head in response, and then withdrew his hands in embarrassment.

Lu Su raised the clairvoyant mirror again to look into the distance, and asked Long Xiang by the way: "Yunqi, there are nine clairvoyant mirrors now, how do you plan to distribute them?" ”

Long Xiang glanced at Cao Xing, and said: "The clairvoyant mirror has the greatest effect on the cavalry battalion, I plan to send five to the cavalry battalion alone, and the remaining four are divided equally between the old and new cities, and it is not enough to slowly polish and supplement in the future, the craftsmen are now much more proficient, and I believe that the success rate can also be improved, what do you think?" ”

"I agree," Cao Xuan couldn't help but talk.

Lu Su was silent and did not respond for a while.

Long Xiang immediately added: "Zijing disagrees? The scale of the new city is indeed a lot larger, and two clairvoyant mirrors may not be enough, so if you can't do it, only one will be left in the old city, and one more will be allocated to the new city."

Lu Su held his glasses and didn't let go of them, neither moved by Long Xiang's generosity, nor answered the question positively, but asked a strange question.

"Yunqi, I heard that you are an only son? Is there a brother or a brother? Or is it a more famous clansman? ”

Long Xiang was stunned for a moment, and replied without thinking: "Long clan people? Dragons count? ”

(End of chapter)