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

Cao Xing's reconnaissance covered a wide range of areas, including the daily movements of Wu Jing's fleet, where Xia Houyuan escorted the grain convoy, and military maneuvers around Shouchun, etc.

Long Xiang looked normal at first, but when he heard important information, he suddenly stopped and confirmed: "Cao Cao's food route changed from land to water? Xia Houyuan's troops are assembled in Lu'an, may they be transferred to fight elsewhere?"

"The news of changing the grain road came from Shouchun. It was said that it would be transported by boat to Longshu on the Xi River, and then the land route would take about the same time, but it would save a lot of oxen and horse carriages. There were not many civilians in Shouchun who could conquer the land.

;

In addition, more than a dozen grain ships from the Central Plains have sailed into Shaopi, and they should wait until they reach a certain scale before moving forward. These two pieces of information can support each other. It is true that Xia Houyuan gathered in Lu'an. As for whether they will be transferred to other places, then

It was Mr. Zijing who guessed it."

After Cao Xing finished speaking, he looked at Lu Su, as if to say that I was just reporting the truth, and it is up to you to deduce the situation.

Long Xiang nodded in greeting, lowered his head and said to himself: "The adjustment of the grain route should be a military secret, how could Shouchun spread it so easily? I guess there must be a fraud. Wu Jing is also a veteran on the battlefield, so he shouldn't be fooled.

"

Lu Su twisted his beard and agreed: "I heard that there was no movement in half a month after the battle between Xiang'an and Sun Cao. I guess Cao's thieves couldn't sit still. Now they are trying to break the situation, but they don't know how to drag Jiangdong into a trap. Xiahou Yuan just left Wan County

Not long after being transferred to the rear, troops are suddenly gathering in Lu'an to prepare. I guess there is a new military operation."

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

Cao Xing trotted to catch up to the front, and said with a troubled face: "General, if Cao Jun's food route is adjusted and the reconnaissance range is extended for dozens of miles to the west, the horses of the cavalry battalion will not be able to run over at all, and they will be easily discovered by Cao Jun or Jiangdong scouts.

.”

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

Long Xiang pointed forward with the 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 this. Could it be that the cavalry battalion was going to introduce new war horses? He had no idea that Long Xiang's solution was actually the bamboo tube in his hand.

Ever since he built the watchtower along the river, Long Xiang has been keeping telescopes close to his heart. This kind of weapon can be used on the battlefield and does not require too complicated skills to make, so it was quickly listed as a secret project.

At this time, the core technology of simple telescopes was only the lens. The bamboo tube was a gift from nature. The metal piece used to fix the bamboo tube could be seen everywhere in the forging workshop.

It took nearly a year from the beginning of the project to the final polishing of the glass lens into a usable finished product.

In ancient societies without precision instruments, this kind of experiment required a lot of trial and error. Fortunately, Long Xiang did not intend to mass-produce it, so he could do it in small quantities without wasting too much material.

For being able to make a telescope so quickly, the person Long Xiang needs to thank most is Yuan Shu.

If Yuan Shu had not raised a large number of craftsmen for his own enjoyment, Long Xiang would not have the ready-made talents to make colored glaze. Apart from his professional skills related to civil engineering, he could not make glass, generate electricity, make gunpowder, etc. that other time travelers know.

There were too many certificates to be tested on the project, and Long Xiang had no time to develop other skills.

Not long after, several people climbed onto the tower.

Long Xiang handed the telescope to Cao Xing and said while gesturing: "Put this object to your eyes, then close the other eye like me, and then try how far you can see."

"How far?"

Cao Xing kept his doubts and followed Long Xiang's example, and was immediately shocked by the scene in the mirror.

I saw him hesitating: "General, how come the scene you see here is exactly the same as what you see five or six miles away?"

"The scene five or six miles away? Governor Cao, are you talking nonsense?" Lu Su frowned in disbelief.

Cao Xing raised the telescope to Lu Su's eyes and said excitedly: "Sir, close one and look into the bamboo tube. Is there a crooked-neck tree? General Mo used it to mark distances from the city before.

The door is exactly five and a half miles away."

"Hiss it's true."

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

Long Xiang smiled and said: "Although I can't see Qianli for the time being, I still want to call him Qianli Jing."

"What a telescope. Whether you use it to attack or defend the city, for reconnaissance or counter-reconnaissance, it is even more powerful than a tiger."

While Lu Su was looking at his hand, he said to himself: "The inside of this telescope looks like colored glass. Since Yunqi can make one, he should be able to make hundreds or thousands. I think the cavalry battalion can be lined up."

Equipment, other battalion generals can equip it.”

Long Xiang hurriedly interrupted: "Zijing has overthought it. This telescope looks simple, but in fact it is very troublesome to polish. It also requires a certain amount of luck. Several craftsmen spent nearly a year and wasted a lot of raw materials. In the end, only

Less than ten can be made, let alone the entire cavalry battalion, even the commanders of the five battalions currently cannot satisfy them all."

"Will I have one?" Cao Xing asked immediately.

Long Xiang nodded slightly, "This is the first finished product that Zijing has assembled. The other eight pieces should be installed within tomorrow. If you want to rush back to the new city today, you can take them away later."

"That's great. The general can immediately put it to use for reconnaissance. This telescope can save a lot of scouts."

Cao Xing was so happy that he reached out to grab it from Lu Su's hand. He mistakenly thought that what was in front of him was to be shared with him.

Lu Su grabbed the telescope and pulled it back, smiling and joking: "Haha, don't worry, Governor Cao, let me play with it for a while, Yunqi can't live without you."

"oh"

Cao Xing lowered his head and responded, then retracted his hands in embarrassment.

Lu Su once again raised the telescope to look into the distance, and asked Long Xiang: "Yunqi, there are nine telescopes now, how do you plan to distribute them?"

Long Xiang glanced at Cao Xing and said seriously: "The telescope is most useful for the cavalry battalion. I plan to issue five to the cavalry battalion alone. The remaining four will be divided equally between the old and new cities. If there are not enough, we will slowly polish and add more in the future. Craftsmen

Now that the proficiency is much higher, I believe the success rate can also be improved, what do you think?"

"I agree." Cao Xing couldn't help but talk.

Lu Su remained silent instead, and did not respond for a while.

Long Xiang then added: "Zijing doesn't agree? The scale of the new city is indeed much larger. Two telescopes may not be enough. If not, just keep one in the old city and allocate one more to the new city."

Lu Su held up his binoculars. He was neither moved by Long Xiang's generosity nor answered the question directly. Instead, he asked a strange question.

"Yun Qi, I heard that you are an only son? Do you have any older brothers or younger brothers? Or maybe a more famous clan member?"

Long Xiang was stunned for a moment, and replied without thinking: "A member of the Long clan? Does Long Qie count?"
Chapter completed!