The crossbow arrows galloped towards the cavalry, which had no cover, with great penetrating power, piercing through the men and horses together.

"Withdraw! Evacuate! Seeing that the bed crossbow had lost more than a dozen horses in just one round of fire at them, Zhang Xutuo didn't care about the unfinished task, and immediately gave the order to retreat, because he knew how powerful the bed crossbow was, it was the second largest weapon for defending the city in addition to the catapult, and it was faster than the rate of fire of the trebuchet.

The cavalry hurriedly retreated, but the sound of crossbow bolts breaking through the air still followed, taking the lives of one or two horsemen from time to time.

"Lord Wang! What are we going to do? The enemy's bed crossbow is so powerful that we can't get close to it! "The most fearful thing about attacking the city is to encounter the opponent with large city defense equipment, if it is a foot soldier, it is okay, although there are many people, but the target is much smaller, but the cavalry is different, so a big target, basically equivalent to a live target, dare not approach at all.

"But it's more troublesome, the bed crossbow is powerful and not to mention, the range alone is enough to give people a headache, and it's still at the head of the city, so it's even more terrifying. However, the bed crossbow has two weaknesses, the first is that it cannot be used for a long time, because the bed crossbow does not use a lever to reduce the force like a trebuchet, it is completely purely human push, and once used for a long time, the rib belt is easy to break, so the bed crossbow will not be used all the time. Second, the power of the bed crossbow is limited to the suppression of the ground, and it has almost no effect on the air, which means that the bed crossbow is not flexible. As long as we can take advantage of these two weaknesses, then the bed crossbow will be vulnerable in front of us. Yang Jian carefully analyzed the characteristics of the bed crossbow, because he also tried to improve the bed crossbow at the Licheng Weapons Research Institute, so he knew a thing or two about it.

"The prince is saying that if you enter the city from the air, the bed crossbow will not work?" Although Zhou Hanren is thicker, he can still understand it, but for some reason, he will come up with the saying that he entered the city from the air.

"The idea is good, but it's no less than a fool's dream, not to mention how to fly over, even if you can fly over the city, are the enemy archers vegetarian? What this king wants to say is that as long as he stands higher than the city of Luoyang City, then he will no longer be threatened by the bed crossbow. Although Zhou Han's idea is good, it is very unrealistic at this time, there are no mountains nearby, and even gliding can't be done, but he also gave Yang Jian a revelation when he mentioned it, although it can't be done now, but maybe it will be able to use it in the future to attack a certain city, it seems that you will have to experiment with gliding tools and hot air balloons after the journey.

"What does Master mean to build a city in front of Luoyang City, and then condescendingly attack the enemy army?" Luo Shixin thought about it for a while, and felt that this method was feasible.

"The idea is okay, but the construction of the city is too slow, the effect is slow, and the longer it drags on, the less beneficial it will be for us, so this method can also be eliminated." In order to attack a city and build a city before and after that city, it is not uncommon in the history of the battle of the city, but that kind of tactic is too costly, first of all, it is necessary to have a long-term combat preparation, and it also requires a lot of manpower and material resources, Yang Jun does not want to consume it so much.

"Luoyang City is several zhang high, with the height of the siege vehicles can completely surpass it, if the number of siege vehicles side by side to form a wide platform, and then get the trebuchet up, with the power of gunpowder, it is completely able to destroy the crossbow of the city bed!" Yang Jun finally expressed his thoughts.

"Lord Wang, this trebuchet is so huge, how can you get it?" Cheng Yanjin asked a question that everyone wanted to ask.

"Have you forgotten what the king gave the soldiers when he asked them to build trebuchets?" Yang Yun smiled mysteriously, fortunately he was prescient.

"Remember, isn't it just an iron lump, is there any mystery that has not been?" Everyone nodded their heads to remember the incident.

"Just remember, don't underestimate this little lump of iron, it is very useful, with it, the trebuchet is easy to disassemble, easy to assemble, and it also makes the trebuchet easy to carry. So just take the trebuchet apart and bring it to the siege engine to assemble it. Yang Jun let the screws developed by the institute be developed, although the process is thicker, but it can come in handy, this expedition he brought all the screws produced, has been needed from time to time, now it seems to be a wise move.

"Okay, since it can be split, then I'll take it on my back myself!" Cheng Yanjin got up and came out to show off his muscles.

"No need, you have to climb a few feet high on your back, no matter how strong you are, you will be tired to death, just send a few people up and hang them from the bottom to the top with a rope, and leave this matter to the thirteen of them!" Great resources are not too wasteful in the army, since the siege of Shaolin Temple was relieved, Tan Zong and other thirteen monks were sent by Master Yiye to help Yang Yong capture the city. After all, they are monks, and they always talk about putting down the butcher's knife and becoming a Buddha on the ground, so it is not appropriate for them to attack the city, but it is also appropriate to sell some strength.

"As for you getting gunpowder down there, after all, you've tinkered with those things, bundled gunpowder into explosives packets, lit them and threw them over, and blew up the bed crossbow!" Yang Jun brought a lot of gunpowder this time, and he could only bomb the city if he couldn't attack Luoyang, the reason why he didn't use it at the beginning, after all, gunpowder violated the harmony of the sky, and the killing was too bloody.

"Yes! Mission completion guaranteed! Hearing that Yang Jian handed over this task to him, Cheng Yanjin was quite excited, he didn't grasp the amount when he got it for the first time, and he used it all, and he almost scared himself, and this time he could finally have a good time again.

Seeing Cheng Biting Jin's excitement, Yang Yan wondered for a while, would it be wrong for him to do this, and when Cheng Biting Jin became addicted to playing with gunpowder, he didn't have to fight when he led his troops to fight outside.

"Look, sir, what is the enemy doing?" A general asked in bewilderment when he saw the movement of the enemy troops on the opposite side.

"Oh no, they're going to put trebuchets on the siege engines, quick! Adjust the direction of the bed crossbow and stop them! Duan Da looked at the number of siege vehicles side by side to form a huge platform, and there were people busy on it, but the appearance of the trebuchet was showing up bit by bit.

"My lord, no, the bed crossbow can't be adjusted to that height!"

"What?! How so?! Quickly, replace it with rockets, and since you can't attack anyone, then burn the siege vehicles! "Now that's the only way to go, since you can't stop the enemy from erecting catapults, it's a good choice to destroy the siege engines.

"Move the siege engine backwards!" Seeing the defenders on the head of the city replaced with rockets, where did Luo Shixin not know what the other party was thinking? And how could he let him get his wish.

"Adjust the angle, this explosive bag is lighter than a stone, adjust it and throw it again, this time I want to teach them a lesson! Hey. Cheng Biting Jin smiled with a gloomy face.