The fighting in the south was in full swing, and the two sides fought several battles back and forth. The demon army's fierce style of not fearing death made Dayu Guo's side suffer a big loss, but Dayu Guosheng was preparing for a long time, relying on fortifications, and stubbornly guarding several key fortresses, no matter how the demon clan attacked the city day and night, it was still difficult to defend it after all.

After Xu Huaigu finished the matter on Lin Cangyang's side, he rushed straight to Lu Zijin's camp. Naturally, he wanted to ask a few things about Guan Qingfeng, including why Lu Zijin knew her identity, and how he could let Qingfeng come and make a move for him.

It's just that Lu Zijin was secretive about this, just prevaricated him a few words, and didn't want to tell Xu Huaigu the details, and Xu Huaigu had to give up.

At least when it comes to colluding with the demon clan, Xu Huaigu feels that Lu Zijin can't do it, and he refuses to say that there must be his troubles.

Thinking about it, it must be a secret between Feng'er and him, and it is inconvenient to tell others. Just like Xu Huaigu and Bai Xiaoyu, others can't understand the feelings between them.

At night, Xu Huaigu stayed on the city wall and saw a siege by the demon clan at night. Most of the demon clan's eyesight is excellent, and they can see clearly even at night when they can't see their fingers, so their siege is carried out in total darkness.

I saw that the lights on this side of the Terran Pass were bright, and the soldiers standing on the city wall were all holding torches, like a flaming dragon.

The demon clan also beat the war drums, the momentum was monstrous, and as the horn of the charge fell, the black and suppressed demon clan began to advance fearlessly.

The demon clan is not afraid of death, Xu Huaigu has already seen it by the Ling River, and at this time, looking down on the city wall, the experience is deeper.

On the city wall, the army of Dayu Kingdom rolled down the boulders, pulled out strong crossbows and bows and arrows, and all kinds of killing blades poured down the city wall like a tide.

Especially the boulder, every boulder rolling down from the top had to crush a large area of the demon clan, with broken bones and blurred flesh and blood.

But the demon clan later acted as if they hadn't seen anything, and continued to rush forward without fear, repeating the mistakes of the past.

Xu Huaigu also saw that there were many demons in the demon group that were obviously larger than the surrounding ones, which should be huge black bears or bison, and their bodies were several zhang high.

They ran frantically towards the city gate, and they didn't know how many of their fellow clans were killed along the way, but they just rushed forward with all their might, and then slammed their heads against the city gate with a loud noise.

The steel-made gates shook twice, and their heads were bleeding and they fell shaking their heads. The attack of the demon clan can be described as no tactics at all, just a way to pile up flesh and blood.

The demon clan that charged in front approached the city wall, and the ladder for the siege was set up, and all kinds of jackals, tigers, leopards, and apes climbed up the ladder.

"Oil, ignition!" The oil stored in the barrels was poured down, and a torch was thrown downward, and the flames flew so high that they burned almost half of the city walls.

Under the scorching flames, the demon clan wailed again, the ladder was burned, and the demon clan who had climbed halfway down fell into the fire again, and the air was filled with the smell of burnt meat.

The attack under the city here was slightly blocked, but a loud scream was heard over there, and then, a strong wind struck, and thousands of flying demons swept in from the air.

"Attention heaven! Archers, prepare your rockets and shoot arrows into the sky! "Woohoo...... The sound of a large number of arrows leaving the bowstring, the rockets were shot into the air, and many flying demons were immediately shot, their bodies were on fire, and they fell.

But there were always flying demons that could not be taken care of by bows and arrows, and these surviving demons swooped down on the soldiers on the wall, cutting their flesh with their sharp claws, or grabbing them high and throwing them into the fire beneath the walls.

The rockets are still shooting into the sky, and the flying demons are gradually decreasing. But there was a huge flying demon, although it was hit by many arrows, it was still brave, and every time it swooped down, it pushed more than a dozen soldiers off the city wall.

Xu Huaigu could see that this was a flying demon of about four or five realms, and the arrows had little effect on him. Xu Huaigu sacrificed his natal flying sword, stepped on it, pulled out the phoenix feather sword in his hand, and walked towards the big demon.

With the sword in his hand, he first cut off his wings with a quick sword, and then cut off his head with a sharp sword, and the huge corpse of the flying demon lost power and fell.

Reading the book, the hilt of the sword blade was full of smelly blood, Xu Huaigu didn't care about it so much, and made up a few more swords, and after killing all the flying demons with a little strength, he wiped the sword clean and put it back in the sheath.

In the scarlet like a sea of blood, dawn came, the demon clan withdrew, and the sun shone down. Xu Huaigu looked under the city wall, and the land for several miles was covered with blood and flesh, most of which were charred corpses, and he couldn't tell whether they were demons or people.

Xu Huaigu stood on the city wall and looked at it for a long time, sighed sadly, and turned his head away. …… Outside Lu Zijin's camp tent, fast horses continued, and news of the battle situation came in one after another, all waiting for his dispatch.

"Report! Xunhe was attacked by the demon clan last night, killing and wounding more than 1,320 people and killing more than 5,000 demon clans. The oil reserves have bottomed out, and the next siege will probably not be able to deal with the ladder! ”

"Report! Wuliang's rocket reserves are seriously insufficient, and there are only more than 5,000 left! The next time the flying demon comes, I'm afraid I won't be able to hold on! ”

"Report! Yuliang's city gate is seriously damaged, and I implore the general to send craftsmen to repair it immediately! Lu Zijin looked calm and dealt with them one by one, Xu Huaigu stood beside him, his face full of sadness.

Finally, the sound of horses' hooves outside the door stopped for a while, and Lu Zijin finally took a breath, took a sip of tea, turned his head and asked Xu Huaigu, "Why are you sad?" I'm not as worried as you are. Xu Huaigu said worriedly: "The places that just came to report are almost unbearable." Lu Zijin nodded slightly, and said helplessly: "Yes, I can't hold it anymore, but this is also expected." Soldiers and soldiers do not care about the loss of a city or a place, as long as the overall situation is stable and the plan is appropriate, sooner or later they can be recaptured. Judging from the current situation, everything is still under control, as long as the key passes do not fall, the demon clan will not be able to break through the defense line. Lu Zijin got up and walked to the sand table in the tent, and said, "Come here, I'll show you." Xu Huaigu also walked to the edge of the sand table and leaned over to look.

"You see, from west to east, there are a total of seven key passes, all of which occupy dangerous terrain, easy to defend and difficult to attack, and the seven fortresses are not far apart, even if one is lost, troops can be transferred from the remaining two to support immediately, and they are connected with each other to form a tight defense line."

Among these seven passes, the most important is this Tanglin Pass, known as the title of the first pass in the Dayu Kingdom. Surrounded by mountains on three sides and occupying the mouth of the river, it is more difficult for the demon clan to attack from here. But the reason why this pass is important is because of this river. If it is captured by the demon clan, the demon clan can transport a large number of troops and supplies into the mountains through this river, and then attack the fortresses on both sides from the mountains and forests, forming a sandwich with the frontal attack, but it will be difficult to defend. As a result, I have the most troops in this fortress, and with a general I trust in guarding it, it shouldn't go wrong. ”

"If nothing else, these passes should be able to block the offensive of the demon clan for a month, and then go back, the resources are almost consumed, and the passes will inevitably be lost, so they can only retreat north, fighting guerrillas while retreating, and then the key role of false intelligence will be revealed. If used properly, Dayu can hold the demon clan for half a year. This is the best result, if I can really delay the offensive of the demon clan for half a year, my task will be completed. Lu Zijin seriously analyzed the situation for Xu Huaigu, Xu Huaigu felt that what he said was reasonable, but there was one thing that he still didn't understand.

"I know all this, but the monks who came with me have already gone to the battlefield to kill demons, why should I stay with you alone?" Lu Zijin patted Xu Huaigu's shoulder and said with a smile: "Among all the cultivators, only your cultivation is the highest, and besides, you are a sword cultivator, the speed of flying swords is fast, and it is convenient to walk." I'm leaving a backhand to prevent an unexpected situation at any pass, and you can quickly rush to help. I am the main general, I can't leave the camp easily, Mao Xuefeng is the right general of the border army, and I also have my own position to hold, and the combat power of the eight realms here is only you. Your role in staying by my side will be much greater than going directly to the battlefield, and I said that everyone will have their own place and will never break their word. Xu Huaigu nodded, calming down.

"The battle you saw last night was just a small attack, you haven't seen the scene of the seven passes, especially Tanglin Pass, the offensive of the demon clan has been fighting day and night, and it has been fighting for nearly ten days, and it has not been able to take Tanglin Pass. What I'm most afraid of now is that the demon clan will be angry and send the great demons of the Nine Realms to attack, which will not be easy. Xu Huaigu asked, "Then what if they really send the Great Demon of the Nine Realms or even the Ten Realms?" Are we going to sit back and wait? Lu Zijin replied: "Not really. After all, there is still the Xingyue Sect, and they have made an agreement with the army in advance, if there is a great demon attack from the Nine Realms and Ten Realms, the Xingyue Sect will send a great monk to deal with it. It's just that it takes three hours for us to pass the message, and for them to come, and for these three hours, we can only rely on ourselves. Xu Huaigu nodded and began to pace in the tent again.

He had been at the border for several days, and Lu Zijin only let him stay in the tent, and he couldn't go far if he wanted to go out.

I went to the city wall last night, and it was also the closest city to the camp, only thirty miles away, otherwise Lu Zijin wouldn't let him go.

Although it is a little boring, the most important thing for a soldier is to follow orders, and what Lu Zijin does has a reason.

Xu Huaigu opened a cabinet in the camp tent, and what was stored in it was the military merit books of the monks, which were rewritten once a day.

Someone came to write this morning, Xu Huaigu wanted to open it and take a look, this is his biggest daily pastime. Li Zi had already killed two Great Demons of the Seven Realms, and he was at the top of the list of all the monks.

Yin Zishi followed, and under the sword there was a big demon of the Seven Realms, and a big demon of the five heads and six realms. The rest of the people, such as Li Siqing, He Renxin, and Xia Ying, the Seven Realms cultivators, also have several Six Realm Great Demons, and they have a good record.

Xu Huaigu continued to flip down, turning over Fan Xuan, An Xiaoyu and a group of unknown monks, before finding Yu Qin's booklet.

He opened it and took a look, but saw that there was a big demon of the Five Realms and several small demons written on it, and he couldn't help frowning. She herself is only in the four realms, how can she have a record of a demon in the five realms?

Although he knew that it might be that Yin Zishi had almost killed her before giving it to her, Xu Huaigu was still very worried that she would do it when she was away.

In case Yu Qin has three long and two short...... Xu Huaigu didn't dare to think about the consequences. Outside the tent there was a sudden sound of horses' hooves, and a soldier whipped his whip with all his might, and 100,000 rushed to him.

When he came to the tent, he hurriedly raised his horse's head.

Without waiting for the horse to stop, he turned over and hurriedly dismounted, shouting hurriedly as he ran: "Report! Report to the general! Xu Huaigu subconsciously felt that something big was wrong.

"Speak quickly!"

"Tanglin Guan......" He gasped for breath, looking panicked,

"There is a big demon from the Nine Realms in Tanglin Pass, and General Chu asked me to report it immediately! The letter from the Xingyue Sect has been sent, but in addition to the big demon, there are also 200,000 demon clan troops, I am afraid that Tanglin Pass will not last for three hours, so I beg the general to quickly send troops to support! "I'm really afraid of something.

Lu Zijin's face was solemn, he frowned and looked at Xu Huaigu, and said, "You hurry up, remember to just hold on, don't be reckless!" Xu Huaigu nodded slightly, his eyes lit up, and he sacrificed the flying sword, and suddenly the white rainbow pierced the sky, and the flying sword was fleeting, flying in the direction of Tang Lin Pass.