That night, Yan Yan sat down and wrote a letter to Lu You.

In the letter, Yan Yan first introduced the recent changes in the two children, saying that Lu Jin had begun to enlighten and became the companion of Li Ran's little county lord, Lu Chu had learned to climb, learned to babble and speak, and seemed to be able to understand the meaning of adults, and a white tip appeared in Lu Chu's lower teeth, and so on.

After talking about the two children, Yan Yan began to talk about this separation, and after talking about her recent plans, she planned to use the 10,000 yuan ticket given by the Zhu family to buy a barren mountain and wasteland, just to settle the beggars she picked up last year, because Yan Yan heard Zhou Haisheng say that although the beggars are all old, weak, sick and disabled, they can still do the work of herding sheep, cattle and pigs, and there are a few farming experts.

It's a pity that this letter was not delivered to Lu You in time, because Jizhou was really surrounded by the Khitans, to be precise, it was the Khitan and Jurchen who partnered to besiege Jizhou.

Although Lu You left some soldiers in the village, because the Khitan and Jurchen were menacing this time, Lu You did not have enough time to adjust his strategy and tactics, so looking at the dense Khitan soldiers and Jurchen soldiers under the city, Lu You was really worried.

Fortunately, the ditch on the periphery of the city wall had been completed, so after observing for three days, Lu You chose a dark and windy night to quietly open the city gate in the north, and selected a capable team of 300 people to go out of the city with bows, arrows and gunpowder, and the city gate was quickly closed again.

Because there were mobile Jurchen soldiers outside the city, someone soon spotted the team and hurriedly went back to report, and the team jumped into the trench after crossing the moat, and moved all the way along the trench.

Because the Jurchen soldiers were fighting with the Great Zhou for the first time, they didn't know Lu You's tricks very well, so when they learned that a small team had left the city, the Jurchens' first reaction was that this team had gone to rescue the soldiers, so they gathered a thousand people and rode towards the north gate, wanting to annihilate this small team in one fell swoop.

However, what these Jurchen soldiers didn't expect was that their people had just approached the trench and were wondering if these Great Zhou soldiers were hiding in the trench, when they saw a lot of unknown objects suddenly thrown out of the trench, followed by explosions.

As soon as the explosion sounded, the first thing that bore the brunt was that the horse was startled and ran around, and the Jurchen soldiers also panicked and made a mess.

Some of the men and horses fell directly in the explosion, and some still rushed forward, but the horses encountered obstacles when they crossed the trench, either being shot by crossbows or wounded by swords, so that some horses fell directly, half in the ditch and half outside the ditch, and even if some horses crossed the first trench, they quickly fell down or fell in the next trench.

In short, this sneak attack caused the Jurchens to injure at least a hundred horses, and five or six hundred casualties, and only a few people were injured on the Great Zhou side.

When a large number of Jurchen soldiers came to meet them, these Great Zhou soldiers took advantage of the darkness to touch the nearby sorghum fields along the trenches, and then entered the village from the sorghum fields.

An hour later, while these Jurchen soldiers were resting, Lu Zhu gathered these soldiers to attack the Jurchen soldiers from behind again, this time they did not fight, and directly shot hundreds of arrows made of pine oil branches to the other party's tents, and soon set these tents on fire.

Taking advantage of the chaos, Lu Zhu jumped into the trench and returned to the city with his men and horses carrying the grain and various vegetables collected from the village on their backs.

Early the next morning, these Jurchen soldiers and Khitan soldiers mastered Lu You's tactics and sent people to occupy the trench first.

However, on this day, Lu You did not take military action.

For three days in a row, there was no movement on Lu You's side, and the trenches that those Jurchen soldiers and Khitan soldiers had been squatting for three days and three nights were also miserable, because it was summer and the time when there were the most mosquitoes.

But even so, the other party refused to give up this trench, after all, they suffered a lot of losses on it, and this is how they lost last year.

On the night of the fifth day, it happened to be dark and empty, not to mention that the five fingers were not much worse, this kind of weather was the most suitable for a sneak attack, so these Khitan soldiers and Jurchen soldiers cheered up, this time they learned to be obedient, not only sent a part of the mobile sentry to stare at the gates of each city, at the same time, also sent a part of the people to stare at the various forks leading to the village entrance or intersection, and the rest of the people sat on the ground and waited for the battle.

In the middle of the night, the ground next to the camp's stables was suddenly arched, and soon a head poked out of the ground, and then two men came out, who first killed the guards of the stables, dragged the bodies into the tunnel, then changed their clothes, and then swaggered to the grain storehouse, which was also filled with their men, who were busy carrying grain underground.

Seeing this, the two men stood guard outside the granary.

An hour later, the two Great Zhou soldiers returned to the grain depot, and when they saw that their companions had all evacuated, they helped to bury the exit, and piled some of the remaining grain on top of the exit.

When they were done, the two men retreated to the stable, moved a manger to block the loose soil, and then they set the horse's hay on fire, and then withdrew to the tunnel below the manger, sealing the entrance to the tunnel, and leaving without hurry.

At the same time, the same thing happened to another camp.

Because the grain depot was not on fire, only the horse's fodder was on fire, and they did not encounter the Great Zhou soldiers, and the Great Zhou soldiers could not fly to their camp to light the fire, so after some investigation, these Khitan soldiers and Jurchen soldiers thought that the ghost fire caused by the dry weather or the fire accidentally caused by the soldiers.

However, there were also two soldiers guarding the grain depot who found that half of the food was missing, and the two soldiers guarding the grain depot were nowhere to be seen, but this phenomenon was a bit weird, and then thought of the inexplicable ghost fire, the two soldiers invariably remained silent.

The main reason is that this responsibility is too great, and if they really want to be held accountable, the two of them can't get out of it, and they absolutely can't bear this consequence.

Because the grain and grass of the war horses were burned, these Khitan soldiers and Jurchen soldiers had to speed up the pace of attacking Jizhou, this time, they gave up the war horses, and also used rockets, countless rockets flew up the city wall and fell into the city, on the other hand, they also organized a lot of soldiers to bury the moat, in order to erect ladders.

Lu You also ordered people to throw gunpowder under the city several times when these soldiers swarmed over to bury the moat, but unfortunately it had little effect, because there were too many people on the other side, and the gunpowder in his hand must be sent on the blade.

He also wanted to shoot back with bows and arrows, but some of the other party's men kept firing rockets at the city wall, and his men didn't dare to poke their heads out.