When Lu Chen made the tenth cannon, there was news from the Holy City: the Tubo people had discovered the existence of the Holy City and had sent people to attack it not long ago. Ranwen ??.? ｒ?ａ?ｎ?? As a result, the attacking Tibetan army was repulsed by the city guards of the Holy City, and even nearly half of the enemy was annihilated.

After knowing this battle report, Lu Chen didn't show much surprise. Now there are not many city guards in the Holy City, counting the more than 500 people who were recruited not long ago, there are more than 25,600 city guards in total. After Lu Chen occupied Luzhou City, he mobilized more than 1,000 soldiers from Luzhou City and asked them to go to the Holy City for defense. Of course, most of these soldiers are loyal veterans.

After hearing that the Tibetan army had invaded the Holy City, Lu Chen immediately couldn't stand still. He did not continue to make artillery, but immediately found Song Cai and asked him to load the guns, crossbows, crossbows and bombs he had just made in a carriage, and then Lu Chen took this batch of weapons to the Holy City for reinforcements.

Lu Chen led the four carriages full of two big hole cards, and walked for about three or five days before coming to the outside of the valley. However, he didn't rush in immediately, but first hid the others in a cave not far away, Lu Chen alone, carefully climbed into the valley from a relatively densely forested mountain, and then slowly approached the holy city.

After all, not long ago, this place was besieged by the Tibetans, and now there will inevitably be an ambush of Tibetan soldiers outside. Lu Chen didn't want to give the two hole cards he had developed with great difficulty to the enemy in vain.

When Lu Chen quietly entered the small valley, he found that there were many weeds growing in the patches of fertile fields before, and it would be at least a month for no one to manage them. Otherwise, it would be impossible for the owner of this farmland to allow so many weeds to appear in the field.

After determining that there was an anomaly here, Lu Chen became more cautious next. He carefully watched his surroundings with every step he took, and if there was any movement, he would immediately hide.

In this way, Lu Chen slowly approached the Holy City, but saw that the Holy City was already closed, and there was no figure in sight outside. At this moment, I only heard a slightly surprised inquiry from the city wall, "Is the city lord down there?" ”

Hearing this, Lu Chen immediately said loudly, "It's me, is there still a Tibetan army outside the city now?" ”

After hearing the familiar voice, the soldiers above finally stopped doubting it, and hurriedly said, "Outside the city is the city lord, open the city gate quickly!" ”

Soon, I saw that the city gate was opened, and two teams of city guards quickly poured out from inside, and these people all saluted Lu Chen after seeing them. After Lu Chen saw their squad leader, he didn't talk nonsense, and immediately asked, "Is there still a Tibetan army in this valley?" ”

"Two or three days ago, there were still a few Tibetan soldiers, but in the last two days, they have not been seen. We're not sure for sure, but since the other side came to invade, the lord of the castle ordered the city gate to be closed, so we don't know about the situation in the valley."

Hearing this, Lu Chen nodded, and immediately said, "You people followed me to the outside of the valley, and I brought you some things, because I was afraid that there would be Tibetan soldiers robbing the road, so I didn't let them bring things over." Now you have dozens of people here and help me move things into the city."

With the help of more than a dozen city guards, Lu Chen and the two of them carried all the guns, crossbows, crossbows, and bombs back and forth to the city. In fact, in this mountain range, Lu Chen once sent someone to dig a hidden passage. Before, he transported the artillery to the city, which was the passage he took. It's just that because it's uncertain whether there are still Tibetan soldiers secretly watching outside. Therefore, Lu Chen didn't dare to take that passage.

When the city guards transported both things into the city. Lu Chen came to the City Lord's Mansion, found the deputy city lord who presided over the daily work of the Holy City, and began to understand the relevant situation.

It turned out that a few days ago, several soldiers who were patrolling the mountains saw two Tibetan soldiers rushing towards this valley quickly, in order to prevent these two people from discovering the existence of the holy city, so the patrol soldiers immediately hidden, when the two Tibetan soldiers came here, those patrol soldiers immediately captured the two alive and transported them back to the city.

And after the two men were captured, they searched the bodies of the two Tibetan soldiers and found a letter, the content of which was only written a time: Next full moon night, action!

After seeing the content of this letter, the deputy city lord and they already knew that these two people should have gone outside to deliver the letter, and they happened to pass through here, so they were caught by the city guards of the holy city by coincidence.

Immediately, they didn't take it as much of a big deal and continued their work. However, after another two days, the city guards patrolling the mountain range rushed back, reporting that a large number of Tibetan soldiers had appeared outside the mountain range.

At that time, after hearing the news, the deputy city lord immediately recalled all the people who were busy working in the fields outside to the city, and then ordered the city gate to be closed, quietly waiting for the arrival of the enemy army. According to the traces of the Tubo people found by the patrol soldiers, as long as there is no accident, the other party will definitely be able to patrol this side.

Sure enough, another day later, the sentry on the city wall saw one or two thousand Tibetan soldiers in the distance, and these people were rushing to this side, apparently discovering the holy city standing in the valley.

It didn't take long for more than 2,000 Tibetan soldiers to gather outside the holy city, and when these people saw this small city, they shouted arrogantly outside, asking the city lord to open the city gate and let them in, otherwise, they would kill all the people inside.

However, the Tibetan soldiers outside were shouting for a long time, but there was no reaction from the Holy City. Seeing this scene, the more than 2,000 soldiers outside were immediately furious, and under the yelling of a general, everyone launched an attack on the holy city. They didn't take the Holy City seriously, after all, it looked too small, and they didn't think there would be many people living in it.

The reason why they attacked this seemingly small city was just that their generals wanted to get this credit, after all, no matter how small the city was, it was still a city, and if it was attacked, the top would still give him a certain reward. Besides, this small city was not very difficult to attack in the eyes of several Tibetan generals, and there were dozens of casualties at most.

As a result, more than 2,000 Tibetan soldiers rushed towards the gate of the holy city. However, before they could get close to the city, they saw a dense crowd of soldiers appear on the city wall in the distance. The next moment, before these Tibetan soldiers could react, they saw that a large number of sharp arrows had been shot at them, and these arrows not only shot farther than ordinary bows and arrows, but even their strength was far beyond that of ordinary bows and arrows.