Nearly half a month after the battle with the Yokono Army, the Tianqing defenders suffered great losses, the main general Yang Yongzhi almost died, he had lost his combat effectiveness, and more than half of the officers at all levels were killed or wounded, and most of the remaining soldiers were only low-level warriors, and it often took a few people to stop a Yokono soldier, if it wasn't for the tall city wall, he would have been slaughtered a long time ago.

After a short rest, Tang Lang counted the remaining numbers: the Tianqing Army had about 12,000 people before, and only more than 4,000 people could fight at present, and there were more than 1,000 lightly wounded and hundreds of seriously wounded;

If it weren't for Tang Lang's return, I'm afraid that after Yokono's attack on the city, the imperial city would fall again, so everyone was holding the heart of death, and the atmosphere in the city was tragic and dull, but with the distribution of a large number of spars and pills, hope sprouted again in everyone's eyes, and the desire for life sprouted again.

"Let everyone recover from their injuries as soon as possible and restore their combat strength at any cost!" Tang Lang did not spare the materials he had stolen at all, the injuries that had been delayed due to lack of medical treatment and medicine were quickly controlled and even healed, and the lightly injured were quickly healed, and they also received sharp weapons and solid armor, and confidently re-stood on the city wall.

But the actual situation is still not optimistic, several large battalions in Yokono, Tang Lang has been to all, although there is also some damage in the siege, but compared to the Tianqing army is much better, most of the middle and high-level officers also have combat power, if it is not for Tang Lang to draw salaries from the bottom of the kettle, steal all their armaments and materials, there is no possibility of victory.

Just when Tang Lang was anxious to think about a good way to retreat from the enemy, the Hengye camp was also solemnly slaughtered, and the main general was almost about to choose someone to eat: "Four battalions, the armaments of the entire four battalions have all been served by people, and I don't even know who did it!"

Xiong Feichi looked at the first group of silent subordinates, the four military camps were attacked almost at the same time, even he himself was almost assassinated, although some suspicious people were identified afterwards, but the testimony between them was full of contradictions, obviously someone was behind the ghost, but there was not even a clue.

As the main general, Xiong Feichi couldn't mess around, held back the anger in his chest, and asked for details: "How much armament, grain and grass are left, and how long will it be suspicious?"

An officer hurriedly replied: "General Yu, the armament offices in the four camps have all been burned, except for the grain, grass and pills that were distributed before, and all the remaining materials in the military village have also been recovered, and they can probably ......."

The officer was a little hesitant when he said this, and after seeing the eyes of the bear's galloping vulture, he continued to reply: "The grain and grass can last for a long time, but the armament used for the siege can only ...... It's only enough for one time!"

"Once? Do you mean that if we attack the city again, if we can't overcome the enemy formation, we can only roll up and leave!" Although it was expected, hearing this bad news still made Xiong Feichi's anger ignite again, and the violent aura suddenly erupted from his body, and all his subordinates couldn't stand.

After a long time, he finally managed to control his emotions, gritted his teeth and said: "Let everyone have a good rest today, all the food and grass are open to supply, and the siege of the city will start early tomorrow morning, even if the last person dies, I will be defeated in the Tianqing Imperial City!"

In fact, he was also forced to be helpless, all the loss of armaments and materials can be big or small, and the imperial capital is not peaceful recently, once it is used by someone with a heart, it is very likely to be severely punished by the emperor, and the dismissal and investigation are light.

"Fight to the death and not retreat! Fight to the death and not retreat......" The officers of the Hengye were also holding back the evil fire in their stomachs, eager to raze the Tianqing Imperial City in front of them to the ground.

"It's broken!" Tang Lang suddenly remembered a problem with serious consequences, and shouted, startling the people next to him to quickly surround him.

"What's wrong?" Gu Yuxia asked with concern.

Tang Lang's head was covered with cold sweat, and he solemnly replied: "I robbed and burned all the materials of the Hengye Army, and I am afraid that they have also reached the point of exhaustion." According to Xiong Feichi's personality, he will definitely not retreat, but will attack the city more crazily, which is really a big trouble now!"

Ji Fengyu didn't realize his deep meaning, and replied confidently: "These days, they have attacked the city a lot, which time is not a nest out, we have all carried it, now there are weapons and armor you brought back, if they really dare to attack the city again, they must be good-looking!"

Tang Lang shook his head and said, "It's different! Before, we relied on the bloodiness of exchanging injuries for injuries and exchanging lives for lives to defeat them again and again. For the Yokono Army, if you can't take the siege this time, there will be a next time, and you can't fight with us, but this time it's different, it will definitely be as desperate as us, and even crazier than us!"

Zong Bo was also worried: "Tang Lang's worries are not unreasonable! Even if we repel Yokono again, they can go back to replenish supplies and fight again, and we only have this little team left, if we really fight it out, what will we do after that?"

Tang Lang turned his heart sideways, and immediately decided: "No, I must give them a ruthless move, so that they are so frightened that they don't even have the courage to attack the city!"

However, the system and the stand-in could not be explained to everyone, so they could only say in a difficult way: "For today's plan, there is no very good way! Everyone hurry up to rest and recover, tomorrow there will be a big battle, no sloppiness!"

persuaded everyone to leave, Tang Lang calmed down and discussed countermeasures with the system.

"How many spars are left?It seems that it will take another self-destruct stand-in to solve the problem!" Tang Lang thought of the only way to secretly send the stand-in into the Yokono military camp and blow himself up again, preferably to blow up Xiong Feichi together.

Before Tang Lang handed over all the storage rings, he had already transferred some spars and pills to the system, after all, his consumption was too large, and he had to reserve some, and it wasn't long before he would start consuming a large amount of them.

"There are still quite a few hedrons, but master, I'm not trying to stress it repeatedly, the correct use of the stand-in is not for you to blow yourself up!" the system answered his question, but was obviously very dissatisfied.

"I don't want to make this exception, but there is no other way! My brother is no longer able to fight, and if he continues to fight, everyone will die!" Tang Lang patiently explained.

The system was silent for a long time, and displayed an object on the light curtain: "In fact, the owner can use these things, and the power is also very huge!"

Tang Lang looked at it, and it turned out to be the twelve spar cannons that he had snatched from the Zhaoding City Treasury. It is different from the principle of Tang Lang's artillery in his previous life, it is engraved with various energy storage and release formations, as long as it is full of spiritual power, each attack can be comparable to the full force of a high-level sect, and it is a big killing weapon used to defend the city.

After thinking about it, he vetoed the system's proposal: "The spar cannon is good, but it can't appear in the imperial city, otherwise Dark Flame will know that I hit Zhaoding City hard, and if you want to fish in troubled waters, it will be useless, and maybe it will attract Dark Flame's big report, and the gains outweigh the losses!"

Tang Lang had stirred up trouble several times before, all of them were provoking and exploiting the discord between the princes, trying to confuse the situation in the country of Dark Flame, if the spar cannon appeared in the Tianqing Imperial City, it would definitely make Dark Flame's eyes focus here, in case he sent a few emperor-level powerhouses to come, it would only make the situation worse.

But Tang Lang's eyes were still attracted by the projection of the giant cannon on the light screen, and he muttered to himself: "It's not that it can't be used, but you have to change the usage of the giant cannon!" You help me take a look, here, and here, if these formations are slightly adjusted, ......

Originally, his idea was to change the formation on the cannon to something like a bomb by adjusting the formation on the cannon, and then drop it on the Yokono camp, and with a "bang", it was wiped out.

As long as it doesn't self-detonate, the system will respond positively, and it took him several hours to deduce how to change the formation, and finally determined the general plan, which is actually a very superficial change, trying to make the formation on the giant cannon extremely unstable, and it may explode if there is a slight vibration.

"Yes, with the simplest flame array, well, it has to be launched with a delay, so it's a time bomb!" Tang Lang looked at the adjusted formation, and always felt as if there was something missing.

"By the way, the cannon should be filled with sharp metal shards so that it can be the most powerful!"

In his previous life, he had seen a military program, and he still remembered that he had filled the mines with steel balls, so he further improved the plan.

Seeing that it was getting late outside and there was no more time, Tang Lang could only tell Zhao Feiyu and Shen Zilan that he wanted to retreat temporarily, so he locked himself in the room, directly entered the system, and modified the twelve spirit stone cannons.

Fortunately, the changes were not complicated, and the formation on the giant cannon was quickly modified, and twelve flame arrays that could be launched with a delay were made, and then the giant cannon was charged, and the filled metal fragments did not have time to look for them alone, so he directly shattered some ready-made swords, and filled each barrel to the brim.

Hurry up, after Tang Lang made all the preparations, it was already late at night, he quietly slipped out of the city alone, let the stand-in attach himself, and escaped into the ground, ready to sneak into the Yokono camp again.

"Twelve giant cannons, Xiong Feichi is in the north camp, and he needs to be taken care of, a total of six huge cannons are buried, focusing on killing and injuring high-ranking officers, while the remaining three large cannons are buried, focusing on killing and injuring ordinary soldiers!" Tang Lang had already thought of countermeasures before, and calculated the maximum killing radius on the light curtain of the system, striving to hit the Yokono Army at one time.

The camouflage ability was not recognized by the Hengye Army, Tang Lang repeated his old tricks, and soon buried the spar cannon in the underground of the three large battalions in the east, west, and south, all of which were set to explode after an hour, reserving enough time for himself.