In order to defeat Bocai, Liu Bei and the others received the help of Lu Zhi, the general of Beizhong Lang, and improved the realm by taking the three-alloy elixir, in order to quickly raise the realm.

The three-alloy elixir is worthy of being a rare elixir, although it is far less than the Daze Dragon and Tiger Pill, but it also has extremely strong medicinal power, and the true yuan reserves of Liu Bei and others continue to grow every day, far greater than the income obtained from ordinary meditation and cultivation.

The conquest army could not hold out, and under the continuous attack of the Yellow Turban Army, it was still unable to break through the protective array of the conquest army, and Bocai was helpless, so he had to send someone to provoke each person to achieve the purpose of weakening the morale of the conquest army. Sooner or later, the morale of the conquest army will be worn out by the Yellow Turban Army, and the effectiveness of the battle array will be at its lowest point. However, the reason why Lu Zhi chose to stick to it was to pin his hopes on Liu Bei and others, Lu Zhi believed that as long as they could quickly raise the realm, they would be able to make up for some of the gaps with Bocai, and when everyone joined forces again, they would be able to defeat Bocai.

So Liu Bei also knew this, in order to live up to Lu Zhi's high hopes, Liu Bei worked hard every day in a special retreat place in the military camp, assiduously carrying out this boring cultivation, absorbing the aura of heaven and earth little by little, and transforming it into true yuan.

Liu Bei thought in his heart: Before the siege of Bocai, Bocai still defused our attack with ease, but suddenly withdrew the army and retreated, I didn't understand it at the time, but now that I think about it, Bocai should also be the true yuan is about to be exhausted, and it is expected that if this continues, it will only be a lose-lose situation, so he pretended to be calm and ordered to withdraw the army, in this way, even Bocai, in the face of our alliance, is also quite stressed, then, as long as we can improve the realm, make up for the gap, and become stronger, we will definitely be able to defeat Bocai!

Cultivation takes time, even if it is taking the pill to improve the realm, it also takes time to refine, but Liu Bei and they need time, but Bo Cai's side is not ready to give them time. Bo Cai also knew that it was definitely not good for their side under Jiu Tuo, Bo Cai knew that Liu Bei and the others were not low, and it was impossible to fight, but they couldn't hold on for more than a month and a half, they were definitely doing something, how could Bo Cai tolerate the other party's long-term plan, knowing that it would be too late to change, in order to break the protective battle array of the conquest army, Bo Cai not only sent people to scold the battle every day, but also secretly prepared their secret weapons.

After a few more months, the army still could not hold out, so that the morale of the army almost fell to the bottom, but even so, the battle formation set up by Lu Zhi was still very strong. After all, Lu Zhi is the true monarch of Yuanying, a famous general of the Immortal Han Dynasty, proficient in the way of the battle array, and the battle array set up is not only based on the soldiers, but also built according to the terrain, so that the battle array is connected to the leyline, and it is integrated, and it can continuously absorb the aura of heaven and earth from the leyline to supplement the energy consumed by the battle array. This kind of battle formation is not something that ordinary Yuanying Zhenjun can design, only a person like Lu Zhi who is proficient in the formation can do it, the Yellow Turban Army will not set up a complex battle array, and the attack method is also very simple, and it is impossible to break through this protective array, so Zhu Jun and Huangfu Song can safely recruit capable people and righteous people in the rear to seek a chance to win.

However, Bocai is not the supreme leader of the Yellow Turbans, he is only the leading general of the Yellow Turban Army, and as a pioneer existence, above him, there is a mysterious great sage and good teacher.

On this day, Liu Bei and others were still patiently cultivating, and the conquest army still ignored the insults of the Yellow Turban Army and could not hold out, and the soldiers looked at the battlefield besieged by the Yellow Turban camp on all sides, and suddenly there were soldiers from a distance, from the Yellow Turban camp, several huge machines that were pushed out by many Yellow Turban soldiers for unknown things, there was a huge roulette wheel that could be pushed and moved, and there was a long lever, the front end was hung by a heavy object, and the tail end was like a huge spoon. After a while, I saw six or seven such large machines appearing one after another, standing in front of the Yellow Turban camp, and the tall wooden and iron machines made the soldiers of the army inexplicably tightened.

"What is this! so big, hey, what are they putting boulders on?" said a soldier of the conquest army, puzzled.

As a result, many Yellow Turban soldiers placed two or three meters thick boulders in the center of each large machine's spoon-like spoon, and the sight of their bulky appearance caused the soldiers of the conquest army to laugh.

After the boulder was loaded, under the command of a Yellow Turban general, the Yellow Turban soldiers began to start the machine, and saw that the runes on these big machines were circulating, and the upper formations were activated, constantly absorbing the surrounding heaven and earth aura, acting on the machine, and finally the boulder in the heart of the spoon began to emit all kinds of brilliance.

The soldiers of the conquest army watched with curiosity the different lights of these huge machines, and discussed one after another, but none of them knew what it was.

After a while, it seemed that the preparations had been completed, and the yellow turban general gave an order, and the machine started.

One by one, the boulders were thrown from the front of the Yellow Turban camp to the side of the conquest camp hundreds of miles away by these big machines using the principle of leverage.

Huge stones, in the sky in an arc, whistling, some boulders with raging flames, like meteors falling at great speed, some boulders are flashing with thunder, and some boulders emit white light, extremely fast, rubbing the air, like arrows breaking through the sky, and some boulders in the air suddenly from one to many, have smashed towards the conquest camp.

The soldiers of the conquest army were stunned, they were shocked from the beginning to panic one by one, watching these boulders smash towards them, no one would underestimate the power of these boulders, this level of attack, even if Jin Dan Zhenren can't dodge, he will be crushed!

Fortunately, the conquest army still had a protective array to protect them, so when everyone saw that these boulders smashed above their heads, they were blocked by a translucent light curtain, and some boulders smashed on the light curtain, causing the light curtain to sink down, but they still couldn't break through the barrier of the light curtain and were bounced away by the light curtain. The soldiers were very happy, and there was a false alarm in the secret path, but they didn't understand, although the light curtain blocked the impact of the boulder, it made the protection array consume a lot, and in the long run, it was very likely to damage the array.

The sound of the boulder smashing on the protective array had already alarmed Lu Zhi, and when he walked out of the camp, he looked at the several large machines standing in front of the Yellow Turban camp in surprise, and couldn't help but say to himself: "That's ...... How could they have flying stones?"

Liu Bei and others were also alarmed, they also walked out of the cultivation site, understood the situation, and came to Lu Zhi's side.

"Teacher, could those huge machines on the other side be flying stone tools from the ancient era?" Looking at these behemoths opposite in surprise, Liu Bei asked Lu Zhi.

Lu Zhi nodded and said, "It is indeed a flying stone tool, and it is also the original flying stone tool of the Warring States Period before Immortal Qin!"

Liu Bei asked suspiciously: "Teacher, didn't you say that after Immortal Qin, many things were lost? It is said that this flying stone tool has long been lost, how can they have such a thing?"

Lu Zhi shook his head and said: "I don't know, the flying stone tool is indeed lost, only there are a few in the imperial capital, all of which are so large that they cannot be moved, and the flying stone tool owned by the Yellow Turban Thief is a product of the Warring States Period, which is much smaller than the volume of the flying stone tools in the imperial capital, so it is very flexible and easy to attack the city and break the formation, such a flying stone tool is not available in the Xianhan, I guess that what the Yellow Turban Thief has is likely to be found in some Warring States tombs!"

Lu Zhi pondered for a while, and then said slowly: " The thieves have flying stone weapons, this is tricky, my protective array can recover from the repeated attacks of hundreds of thousands of Yellow Turban Army, but it may not be able to withstand the impact of these boulders, you don't think that the formation is an unbreakable existence, in fact, the formation is very fragile, if a place is not done well, it is very likely to collapse the large array, the big array is afraid of this sudden explosive destructive force, so it is not that the impact of the boulder is higher than the attack of hundreds of thousands of Yellow Turban Army, but that its explosive power, in a short instant, the destructive power caused by the army is much greater than the repeated attacks of the army, the attack of six or seven flying stone tools, which is almost equivalent to the spell casting blow of Yuanying Zhenjun, it is very likely to cause a short circuit in the recovery of the large array, making the damage of the battle array difficult to repair!"

"Ahh

Lu Zhi frowned and said: "I look at these flying stone tools, six hundred breaths can throw a wave, and these flying stone tools are not simply throwing boulders, they also load the Yuan Force of various attributes in the flying stones, causing greater damage to the large array." ”

Sure enough, in the subsequent flying stone attack, a crystal tower that served as the eye of the array in the large array suddenly collapsed, and all the spirit stones inside were burned out and shattered.

"Hurry up and repair the big array!" Lu Zhi hurriedly ordered humanity.

Liu Bei asked, "Teacher, if the big array collapses, can't the teacher set up a new big array?"

Lu Zhi shook his head and said: "How can it be so simple to set up a large array, especially a protective array, it takes time to set it up first, and it also consumes a lot of resources to arrange and form, so that the large array can be endless, so once the big array collapses, the Yellow Turban thieves will take the opportunity to attack, and they will not leave time to re-establish the big array for us." ”

"Then we'll destroy their flying stone tools!" Liu Bei said.

Lu Zhi smiled bitterly: " Although it's a pity that this kind of mechanism of the lost Warring States period has been destroyed, but this kind of mechanism and equipment is better than not in the hands of these thieves, so their flying stone tools must be destroyed, but since they have put out such a machine, they must have carried out very strict protection, and destroying it will definitely lead to Bocai, but I can't make a move for the teacher, and the generals under him can't be Bocai's opponent, and you can't let you out at a critical moment, so it's not so easy to destroy the thief's flying stone tool！”

Liu Bei thought to himself: If you want to destroy the flying stone weapon of the Yellow Turban thief, you must send a strong Jindan general to destroy it, but the thief's first wave must be lurking in it, this is a conspiracy, and the generals under the teacher are definitely sent to death in the past, but we are at a critical moment of cultivation at this time, and if we go out now, then we will be immediately recognized by Bocai, so that a few months of hard work will be in vain, but if we don't go out, the protective array is in danger, what should we do?