There are so many routines for siege warfare, and it is not easy to build large-scale siege equipment, but for the Tang army, which has a large number of skilled craftsmen, it is really not difficult to build a simple catapult.

Although it will fall apart after ten or so strokes of bad luck, it is also a siege weapon that can throw dozens of catties of stones to a hundred meters away.

As for the stones, Chang'an City definitely has no reserves, but the war itself is all-encompassing, and Guo Rong has made an extreme speculation that the rebels will directly use the demolition of the opposite house as the source of the stone.

When he did not receive the attack, Guo Rong was panicked, but when the stone really came in front of him and hit the palace wall, Guo Rong was relieved that the rebels did not exceed their worst expectations after all.

Moreover, in Guo Rong's view, there are actually benefits to having catapults.

The first point is that he can justifiably drive Li Yu down, at least to the main building, after all, no matter how awesome Zhang Jiaxuan is, he can't stop the stones that are projected.

The second point is that when preparing for war, Guo Rong can transport troops, grain, armor, blades, crossbow arrows, and arrows to Xingqing Palace, but if the rockery in Xingqing Palace is not demolished, Guo Rong will not be able to get stones anyway!

Well, as long as you can't kill people by what is thrown in, it is equivalent to providing ammunition for your own defense of the city, and dozens of catties of stones thrown down from the palace wall are much better than arrows for the armored Shence army.

So, at the moment when he judged that the stone was coming, Guo Rong shouted.

"Everyone dodge the rocks!"

While drinking, Guo Rong resisted the Emperor Li Chen, who was wearing golden armor and looked confused, and rushed directly into the building.

Seeing Guo Rong's movements, Zhang Jiaxuan's eyes were quick and he followed Guo Rong directly into the building.

When the Emperor Taishang recovered from his panic, the rebels' catapults were already in full swing, and a large number of stones, wood, and masonry smashed against the solid palace walls, and the wails of the defenders were heard from time to time.

And inside the main building, under the light of the brazier flames, Li Yu saw confidence and calmness on Guo Rong's face.

Guo Rong has reason to be confident and calm, only unknown things will make Guo Rong afraid, as for the means of attacking the city, Guo Rong has seen enough in the three years of Qiuzi.

In all fairness, if you are the head of the rebels, you will definitely not be willing to do something sneak attack behind such a big battle in front of you.

It's just that the sneak attack on this thing relies on suddenness, and it is indeed very dangerous if you don't react, but you have just ordered to strengthen your vigilance, and the threat is really not big, but you have to take precautions, Daming Palace and Taiji Palace......

Feeling the sound of the not very serious stone outside, after thinking for a while, Guo Rong, who had an idea, gave orders to several new soldiers around him who were in charge of passing orders.

"Pass the order, the east, north, and west walls, extinguish all braziers, wind crossbows, and keep knives in hand, keep silent, no noise, and strengthen vigilance!"

"Order, all Mo sword soldiers and cavalry are assembled under the Tongyang Gate to prepare for battle!"

"Order, the south side of the palace wall to hide from the rebel stones, after the stone is reduced, immediately reappear to light the brazier, collect the stone and prepare for battle!"

Several heralds in light armor took a deep breath, rushed out of the main building, and began to run wildly on the palace walls in the night, some of them were killed on the spot by stone hits, but the rest of the heralds were still running for their lives.

With the pace of the heralds, there was a scene of ice and fire in the entire Xingqing Palace.

The brazier on the palace wall was extinguished, and the lights of the watchtower and other defensive points were also extinguished, and the eastern, northern, and western walls of Xingqing Palace gradually fell into darkness and dead silence......

The fire on the palace wall was extinguished, and it fell into absolute darkness, and the special situation of Xingqing Palace was noticed by the defenders of the other two palace cities in an instant.

With the defense of Xingqing Palace, if it weren't for Guo Rong's direct surrender to the enemy, it would definitely not have fallen so quickly, since it was not a fall, it was a response and a reminder.

Zheng Yongnan, who was stationed in the Taiji Palace, and Zhang Jieyi, who was stationed in the Daming Palace, chose the same move to strengthen their vigilance.

In the Tang Dynasty, where there was no light pollution, once there was no light and fire, the darkness was really absolute darkness, and you couldn't see the five fingers when you stretched out your hand.

The light of the fire above the palace walls at night does provide a small amount of vision to the defenders, but it also gives a direction for the enemy to attack if they are likely to sneak attack.

For example, among the rebels, the hardcore rebels who have been bought by Ju Wenzhen, Chen Hongzhi and others have already touched the other three palace walls of Xingqing Palace when the rebels began to use gravel to attack Xingqing Palace.

With the help of bamboo ladders and the faint firelight of Chengtou Mountain, they are cautiously and silently climbing towards the city.

The firelight on the palace wall disappeared in an instant, and the "True Divine Ce Rebels", who were holding ladders and quietly climbing up, suddenly fell into absolute darkness, and the situation took a sharp turn for the worse!

Although the ladder was still there, the light above their heads disappeared, leaving the rebels who had climbed halfway to a dilemma.

The disappearance of the scattered firelight may still be regarded as an accident, but the collective disappearance of the firelight on the palace wall, and the complete silence, can only be superficial, the defenders who come to the door are guarded, which means that the sneak attack is no longer realistic.

The rebels, who were smarter and understood what was going on, began to walk down quietly, the iron-headed ones continued to climb upward, and more people stopped in mid-air in embarrassment and shivered, and those with poor psychological quality fell directly from mid-air.

A handful of rebels with iron heads, good skills, and good luck have just climbed the walls of Miyagi, and then they beg for a hammer!

Although the military order is like a mountain, no one will be happy to be woken up in the middle of the night, so the defenders vent their anger directly on these hapless children.

The moment you reached the top of the city, countless crossbow arrows swarmed in......

…………………………

On the square on the south side of Xingqing Palace, after completing the pre-war agitation, the tens of thousands of rebels gathered in the square began to diverge to the predetermined location.

At this time, Ju Wenzhen also received the news that the side sneak attack was discovered.

The sneak attack was just an attempt made by Ju Wenzhen in passing, and it was normal to be unsuccessful, but the other party's coping strategy of directly turning off the lights made Ju Wenzhen feel dangerous.

It was such an unconventional strategy that caused the sneak attack of the Shence Army to be in chaos and stagnation in mid-air, causing the losses to skyrocket several times.

The people who can be sent to carry out this kind of sneak attack are all elites, and hundreds of elites have been damaged before the war starts, which is more or less painful for Ju Wenzhen.

With 60,000 rebels in hand, Ju Wenzhen, who has an absolute advantage, is actually not in a hurry to attack the city.

He originally thought about waiting for the ladders, nest carts, and rushing carts to arrive after dawn, and by the way, he would accumulate a little more catapults before attacking the city, but now Ju Wenzhen has changed his mind.

Anyway, these are not his cronies in front of him, so it's not bad to consume the arrows he guards, and try their quality by the way.

The improvised catapult that had already been built began the second round of projectiles, and a large number of stones, mud blocks, and wooden blocks and tiles began to be thrown towards the south side of the palace wall.

More than 1,000 instigated rebels began to march towards Xingqing Palace with improvised siege equipment.

On the inside of the palace wall on the south side of Xingqing Palace, one hundred Mo sword soldiers and two hundred cavalry have been assembled.