Ying Zheng's decision to give all the 3,000 flying crossbows carried by "our army" this time to Jingjue was not impulsive.

Wu Chan had already promised to let Thumb go to Daqin with some ghost hands to help build the royal tomb, and this friendship Yingzheng was worried that there was no place to reciprocate, and now seeing that she likes flying crossbows so much, of course she has to give them away.

"With these flying crossbows, the combat power of the elite army must also be greatly improved." Ying Zheng said, "Although no one can break the exquisite city defense, it is not a bad thing to arm yourself better."

"What King Qin said is extremely true." Zhehuai nodded and said, "Although the Elite City is strong, it is also afraid that the temples will be gradually corroded from the inside by the countries, and with these flying crossbows, the Elite will definitely not be afraid of external invasion or internal strife."

"If these quantities are not enough, when the widow returns, I will make some more for you." Ying Zheng said.

Zhehuai didn't answer, but looked at Wuchan.

Wu Chan said with a smile: "The number of three thousand is enough, after all, the Western Regions have been quite stable for many years, and although there are many tribes, they all live relatively peacefully, so they don't have much trouble."

"Well, that's fine." Ying Zheng said, "If there is really a war, as long as you send the news, let alone a flying crossbow, 100,000 iron horsemen will arrive."

"Hehe, that's good."

After a short time, the wild deer was roasted, and the four of them began to eat the wild deer.

I have to say that the game in the Western Regions is very tender and delicious, and with mare's milk wine, it is really a rare delicacy in the world.

Still chatting while eating, the atmosphere is extremely harmonious and peaceful.

Looking at the distant sky, Ying Zheng seemed to suddenly think of something, turned his head to look at his thumb, and asked, "Thumb senior, you said before that if you enter the desert, it is very easy to lose sight of the direction, why is this?"

Thumb took a sip of mare's milk wine and said, "This desert is different from ordinary countryside, in the countryside, a tree tied to a red line can be used as a guide to the direction, where the grass grows sparsely, and most of the paths that others often pass through, but the desert is a vast sea of sand, and there is nothing else as a reference, if you turn around in place a few times, it is easy to lose the route you came from."

"On a sunny day, it's better, but if it's a cloudy or windy day and you can't see the sun, then you really can't tell the difference between east and west, north and south."

"If you lose your direction, most of the time, you will go around in a fixed area, walk for a long time, and then come back again."

The thumb gives you a rough idea of the importance of finding your way in the desert.

"I see." Ying Zheng said thoughtfully, "Then if one direction can be identified in a certain way at any time, is it possible that the other three directions can also be identified?"

"That's right." Zhehuai said, "Among the four directions, only one direction is confirmed, and the other three directions can be distinguished.

"But if there is no sun, there is no way to discern the only direction." Thumb shook his head and said.

"No, there is a way." Ying Zheng said.

"Oh?" Thumb wondered, "Could it be that Huaxia has any special method that can discern the direction without relying on the sun?"

Ying Zheng smiled and said, "It's not that Huaxia has a way, but that the widow has a way."

"What's the solution?" Wu Chan also asked anxiously with curiosity.

"Darkiron snails." Ying Zheng replied.

"Darkiron snails?" Wu Chan wondered.

Ying Zheng didn't say anything more, but put down the deer leg in his hand, got up and took his package.

Taking out the compass he was carrying from the package, Ying Zheng laid it flat in front of everyone.

Wu Chan leaned over and said, "You said in the morning that this snail can find many different kinds of minerals, could those minerals show the way?"

"Hehe, it's not that troublesome." Ying Zheng said as he transformed the black iron snail into the form of a pointer.

Thumb and Zhehuai saw the Xuantie Snail for the first time, and they were curious, so they also came over.

"In this compass, there should be some mechanisms, make corresponding adjustments, and they will search for the vicinity

Some kind of mineral." Ying Zheng said, "But if you leave this conch still and don't move anything, it will always point in one direction."

"Huh?" All three opened their mouths wide at the same time.

"I don't believe you." Ying Zheng picked up the compass and turned around in place.

And no matter how Ying Zheng rotated, the tip of the black iron snail always pointed in the same direction, and as Ying Zheng's body rotated, the pointer rotated on the compass with the same amplitude.

"Hey, that's weird." Wu Chan said in surprise.

"This, this is always pointing, yes, which direction." The voice of the thumb trembled a little.

"It's always the south." Ying Zheng replied, "Before, the widow didn't think it was of any use, but now it seems that it can really be used to discern directions."

Indeed, when using the snail to explore minerals, Ying Zheng discovered this feature, because every time the snail is placed on the compass, it will rotate and then stop, and the position it stops is pointing to the south.

"Is it really that amazing?" Wu Chan stretched out his hands and took the compass from Yingzheng's hand, "Let me try."

Ying Zheng handed the compass to Wu Chan and said, "It's the same no matter how you try, as long as you don't change the mechanism on the compass, it will always point south."

Wu Chan did not spin in a circle like Yingzheng, but carefully shook his body from side to side, and then half-turned, facing four different directions in succession to do the same movement.

But no matter how Wu Chan moved, the dark iron snail still swayed with the amplitude of her shaking, and the end of the pointer always pointed to the south.

"Look, the widow is right." Ying Zheng said with a smile.

"Hahaha!" Thumb laughed excitedly, "With this treasure, we're not afraid of getting lost in the desert!"

Zhehuai was also extremely happy and said, "Not only us, no matter who you are, as long as you hold this compass, you won't get lost wherever you go."

"It's a blessing to the world!" Thumb sighed.

Wu Chan, who was holding the compass in his hand, seemed to be a little dizzy, so he simply put the compass on the ground, then sat next to the compass and moved the black iron snail with his hand.

But no matter how much force it used, when the snail finally came to a standstill, it was still pointing south.

"Brother Ying." After playing for a while, Wu Chan looked at Ying Zheng and asked, "If you make this dark iron snail, this function of guiding the direction will also be retained, right?"

"If you do, of course, it's a complete copy, unless you ......" Ying Zheng swallowed a little.

"Unless what?" Uzen asked nervously.

"Unless he's a senior, he won't." Ying Zheng spread his hands and said.

"Will he be there?" Uzen asked eagerly.

"The widow didn't ask." Ying Zheng also looked a little helpless.

Wuzen: "......"

The thumb's eyes had been staring at the dark iron snail placed on the compass, as if he had been thinking about something, and at this time, he suddenly looked up at Ying Zheng and asked, "That senior of the King of Qin, didn't he say that why this dark iron snail has been pointing south?"

"Well, the widow remembers, it seems to be because of something called magnetism." Ying Zheng said, "But the principle is unknown."

"Magnetism?" Thumb shook his head, "I haven't heard of it, but it doesn't matter if we know the truth or not, we just need to make good use of this feature."

"Yes, Brother Ying." Wu Chan's gaze finally left the compass, "You discuss with your seniors to see if you can use this function to make a separate object, no need to search for ore, just guide out of the south."

"You mean, as long as you can show the way?" Ying Zheng asked.

"Hmm." The three of them nodded at the same time.

"Well, the widow has written down this." Ying Zheng said.

Thumb laughed and said, "If that's the case, it won't be so dangerous for the Ghost Hands to explore the Sand Mill in the future."

"yes, then I won't be as worried as I used to be." Uchan smiled from the bottom of his heart.

"However, the thing that guides the direction is different from the dark iron snail after all." Zhehuai looked at Yingzheng and said, "It's better to

The King of Qin gave the object a name so that it could be distinguished."

Ying Zheng thought for a moment, and said calmly: "Since that object is used to guide the direction, and it has been pointing to the south, it should be called 'Sinan'."

"Sinan......" Wu Chan muttered softly, and then smiled, "This name is good."

"Okay, okay." Thumb also nodded again and again, and said, "We'll have Sinan in the future, hahaha!"

The crowd seemed particularly happy and drank their wine.

After drinking and eating, Wu Chan set up a tent in the cave and went into the tent to rest.

The three men pitched their tents around the campfire.

Originally, it was planned that Thumb and Zhehuai would take turns to hold the night post, but Yingzheng was not sleepy, so the three of them drank and chatted until late at night.

Early the next morning, the four of them got in order and continued to set off.

"Brother Ying." Wu Chan called softly to Yingzheng beside him.

"Huh?" Ying Zheng responded.

"You're so generous this time, so helpful, I don't know what to say." Wu Chan's bright eyes flashed with gratitude.

Ying Zheng smiled and asked, "You mean the matter of the flying crossbow and the dark iron snail?"

"Hmm." Wu Chan's voice was like a thin thread, and there was a slight shyness between his eyebrows, "There is also the nine-story royal tomb."

"None of this is a big deal." Ying Zheng said disapprovingly, "If these things can help you and refine you, then why not?"

"I know." Wu Chan exhaled lightly and said, "The things you said are hidden from the whole of Huaxia, and now it is already a mess of the rules to tell Wu Chan, but you still have to help Jing Jue build the royal tomb, make Xuan Tie Snail and Sinan, this kindness, Jing Jue is grateful."

"Hahaha...... Ying Zheng laughed, "If you say that, you won't see the outside." For thousands of years, whenever Huaxia needs the help of Jingji, Jingjie is obliged to go all out, and if you want to say kindness, it is Jingjie who is kind to Huaxia."

Thumb and Zhehuai, who were leading the way in front, glanced back at the monarch of the two countries behind him at the same time, and then invariably accelerated the speed of his horse, narrowing the distance between the front and back a little.

"Hehe, what happened before, after all, we don't know, but it is said that every time, Huaxia will also give a lot of exquisite things." "But, it doesn't seem like you're going to be as generous as you are every time."

"Hehe, it's nature." Ying Zheng said, "As time goes by, the people and temples will surely accumulate more wealth, and your essence is stronger than a year, isn't it?"

"That's it." Uzen smiled and said, "Thank you, though."

"Didn't you thank you many times last night, and if you thank you again, it will be a significant achievement." Ying Zheng said.

Wu Chan hesitated for a moment, then smiled again.

I've only known each other for a few days, why don't you have a part?

"But......" Uzen said softly, turning his face worried, "when it comes to making the people rich, it is up to the human to decide, after all, man is not as good as heaven."

"You mean, this millstone of sand?" Ying Zheng also asked with his eyebrows.

"Hmm." Wu Chan responded, and his melancholy was even stronger.

"Uzen." Ying Zheng slowed down his horse's speed, looked at Wu Chan and asked, "If it really is true that one day, Jing will no longer be suitable for living, will you take your people and leave this land to build a new home in another world?"

Wu Chan also slowed down his horse speed and lowered his head slightly, as if he was thinking about Yingzheng's problem.

After a few breaths, Wu Chan looked up at Ying Zheng, and the confusion in his beautiful and illusory eyes was gone, replaced by a resolute decision that had never appeared before: "If there really is such a day, I believe that I have the confidence to lead the whole clan to rebuild their homeland, and I also believe that the people of the Ghost Cave have this

Courage to face all this."

"Good!" Ying Zheng said in a very encouraging tone, "Worthy of being the Exquisite Queen! If there really is such a day, Daqin is always welcome, and when the time comes, the land of Huaxia is up to you."

At this moment, Wu Chan's bright eyes flickered, and it seemed to dissipate the haze that had been hidden in his heart for a long time.