After the construction of the second section of the Ultimate Wall, 43 Sappers were upgraded to level 4 skills, and with the completion of the third section of the Ultimate Wall, all the remaining Sappers were upgraded to level 4 skills.

But to Mu Tian's regret, the effect of this upgrade seems to be no different from not being upgraded, because once the construction skill level of these sappers is raised to level four, then Arthur's bonus effect will disappear, so they are still maintained at level four construction skill level, which makes Mu Tian feel a little lost.

However, when the total of 33 sections of the ultimate city wall was halfway through, that is, the 15th stage, the phone call happened again, and a sapper took the lead in reporting to Arthur that she had successfully raised the construction skill level to level 5, becoming the first player among all the sappers to have a level 5 construction skill, which surprised Mu Tian and Arthur.

And this seems to be a signal, with the completion of the section of the city wall, more and more sappers have been upgraded to level 5 construction skills, and finally when the 21st section of the ultimate city wall is built, all the sappers will be upgraded to level 5 construction skills!

However, it also reflects a characteristic of life and profession from here, that is, in addition to sufficient experience, the improvement of skills also requires extremely high qualifications for the players themselves.

The hundred sappers here, all of them started to learn construction skills at the same time, and the beginning was okay, even if they reached the first three levels, they were basically successfully upgraded in the same time period, and the difference between the slowest and fastest ones would not exceed half a day.

But now when it comes to upgrading to level 5 building skills, the gap is obvious, the fastest player has 15 sections of the city wall has been upgraded to level 5, but the slowest player has consumed 21 sections of the city wall.

Each section of the city wall provides a huge amount of experience points, but there is a difference of experience points between the fastest and the slowest by a full six sections of the city wall, and the difference is talent. The more talented the player, the less experience they need to level up, and vice versa.

It's a pity that these talents don't have an intuitive data panel to show you, and they can only be discovered in such actual learning and cultivation.

To get back to the point, with the improvement of a large number of sapper levels, this also accelerated the construction of the ultimate city wall again, from the original time of three days to 31 hours, that is, a little more than a day, which made Mu Tian even more happy, which means that the acceleration scrolls consumed by the ultimate city wall have been reduced by about double again, so that the problem of insufficient acceleration scrolls that plagued Mu Tian before was solved in an instant, not only the acceleration scrolls are more than enough, And there are more than 1,000 left, which is really gratifying!

And what Mu Tian didn't expect the most was that when the first city wall was completed in a total of 33 sections, Mu Tian actually heard a surprise system prompt sound in his ears.

"System: Congratulations to the player Mu Tian, you have accumulated enough experience in building, and your building skill level has been successfully raised to level 8!"

"Damn! I also have level 8 construction skills! Mu Tian's eyes widened, he couldn't imagine that his original level 7 construction skills had actually been upgraded by 1 level in this situation, how many benefits there were in this ultimate city wall!

And with the completion of the construction of the 33rd section of the ultimate city wall, an almost insurmountable, terrifying existence like a giant dam has been rung in the only exit position of Mujia Village, God knows how many lives the poisonous beast has to fill in to break through the defense of this ultimate city wall!

And thinking that there are three more walls of the same city, Mu Tian's heart is full of pride, and he can't wait to meet tomorrow's siege battle.

It's just that just when Mu Tian was about to command his men to continue to build the second city wall, this Arthur classmate suddenly said something in Mu Tian's ear: "Lord! Your walls seem to be blocking the watchtower! ”

"What? What do you say? Mu Tian was stunned for a moment.

"Lord, this ultimate wall has blocked the watchtower...... Arthur said with a wry smile, and under Arthur's reminder, a terrifying fact has finally been discovered, that is, this ultimate wall has blocked its own turret.

The height of a built guard tower is 30 meters, and the height of the upgraded turret is 40 meters, well, this is a very high height, equivalent to a ten-story building.

But the problem is that the height of this ultimate city wall is 60 meters, and the guard tower carefully prepared by Mu Tian is only more than half the height of the ultimate city wall.

This is very embarrassing, the attack of the watchtower is not a parabolic trajectory, in the face of this ultimate wall, unless the poisonous beast has broken through the ultimate wall, the attack of the watchtower cannot cross the ultimate wall to attack, this is simply a pit to the extreme.

"What should I do?" Mu Tian was a little stupid, when the city wall was higher than the height of the guard tower, the existence of the turret completely lost its meaning and value, and then even the ultimate city wall seemed to lose its value, which made Mu Tian extremely embarrassed and speechless!

"It's my fault, it's that I didn't think it through, I didn't think of it at all!" Mu Tian had a headache, and said with great self-blame.

"My lord! Self-blame can't solve the problem, let's think about the real solution to the problem! Arthur on the side said.

"Not bad!" Mu Tian nodded, quickly freed himself from self-blame, and began to think about it at the same time.

There are only two ways to solve this problem, either replace the final wall with a wall with a height of less than 30 meters, or continue to raise the watchtower so that the height of the watchtower exceeds 60 meters, which is the only two feasible solutions.

To be honest, Mu Tian was absolutely unwilling to use the first method anyway, because demolishing the ultimate city wall would mean that all the resources and acceleration scrolls invested before would be scrapped, so it would be better to kill Mu Tian.

So at the moment, there is only one way that Mu Tian can do, that is, to continue to raise the turret, so that the height of the turret is higher than 60 meters.

"Li Wei, can the turret continue to be upgraded?" Mu Tian looked at the watchtower that had been built, and the only watchtower that had been upgraded to a turret, Mu Tian asked in a deep voice.

"This minister doesn't know, you ask the minister to check the information!" Li Wei also said with a confused face, and then quickly ran to check the information, and after a while, he reported to the anxious Mu Tian that the turret could indeed continue to be upgraded, and there was also the Tower of Sauron above the turret, which was the ultimate version of the sentry tower, with a height of 120 meters, twice the size of the ultimate city wall, and could completely radiate most of the battlefield for attack.

But the problem is that it is impossible for Li Wei to have the upgrade blueprint of the Tower of Sauron, and later Mu Tian rummaged through the entire points store, and did not find such a blueprint sold in the store.

According to the records on the data, there has only been one such drawing in history, and it is in the hands of the royal family of the Fourth Empire of Shenmu, but with the destruction of the Fourth Empire of Shenmu, this drawing has completely disappeared, and no one knows where this drawing of the construction of the Tower of Sauron goes!

"Shenmu Fourth Empire, isn't this the ancestor of the Li Chenggong family?" Mu Tian's eyes lit up, the ancestors of the Li family in Mangzhou were originally descendants of the Fourth Empire of Shenmu, and Li Chenggong might know where the blueprints of the Tower of Sauron were.

With such hope, Mu Tian immediately contacted Li Chenggong, and when he heard the news that Mu Tian inquired about the drawings of the Tower of Sauron, Li Chenggong didn't want to give Mu Tian a reply directly, saying that he didn't know where the drawings of the Tower of Sauron were.

"Brother Mutian, it's not that I'm Li Chenggong stingy, it's really that we really don't have the construction drawings of the Tower of Sauron in our hands, and what do you want that thing for, it's one of the architectural drawings that have been rated as the Eight Wonders of Shenmu, and the various resources consumed by upgrading even the Fourth Empire of Shenmu back then only made up a mere 20 points, even if I get you it, you can't build it!"

"I know, others think that we are the descendants of the Fourth Empire, we have that construction blueprint in our hands, hundreds of people have asked us for thousands of years, but our answer is the same, the ancestor of my Li family in Mangzhou is just a deposed prince of the empire, we were sent to Mangzhou back then, the ancestor only brought two maids with him at the beginning, and more than a dozen personal guards, our ancestor was even so poor that he couldn't afford to eat meat for a while, and we didn't accept any inheritance from the Fourth Empire at all!" Li Chenggong lamented and complained to Mu Tian, as for whether what he said was true or not, only God knows.

Li Chenggong's attitude was very resolute, and Mu Tian couldn't question it anymore, and the three of them brainstormed for a while, and found that there seemed to be no better way than to demolish the ultimate city wall.

After all, 200 watchtowers have already been built, and the blueprints can only build up to 200, so it is naturally impossible to move the position.

At this time, it was about 3 o'clock in the afternoon of the 6th, and there were only 13 hours left before the monster siege officially began.

There is no way, who made Mu Tian too greedy, he wants the best in everything, and he has to build the strongest ultimate city wall, but he doesn't want to be clear in his head, and he ends up in this field now.

"Lord, we can only make mistakes at the moment, the second and third ultimate city walls are not necessary to build for the time being, it is better to let the sappers of the ministers first, build several layers of intermediate city walls around the sentry tower that has been built, the height of the intermediate city wall is only about 12 meters, and it is completely possible to let the turret come and only play the battle"

"Let's use the intermediate city wall to protect the turret, which is actually not bad, at least the intermediate city wall is cheaper!" Arthur suggested.

"Yes, in fact, the Ultimate City Wall that has been built is not completely useless, when I looked at the store just now, I found that there are still a lot of very useful city defense equipment in the store, such as the Ten Thousand Arrows Ballista!"

"We can make hundreds of ballistas with 10,000 arrows first, and then put them on the city wall, although the effect is not as powerful as the turret, but it is also a good lethality. In addition, we can also use it with other city defense equipment, and it is no problem to defend for more than ten days! Li Wei also said so.

"That's all there is to it!" Hearing Arthur and Li Wei's suggestions, Mu Tian was helpless and depressed, and the guard tower that had been built at the end of the day was actually abolished. However, the suggestion of the two of them was the only feasible way at the moment, and Mu Tian could only pinch his nose and admit it in the end.

So, Mu Tian regained his spirits, searched in the store with Arthur, Li Wei and others for two hours, and finally selected 8 different drawings of the city-guarding equipment, and decided to arrange these 8 kinds of city-guarding equipment together on the ultimate city wall, so that it could be regarded as playing the role of the ultimate city wall.

After choosing these things, Mu Tian felt tired.

This was not due to the abandonment of the turret, but a violent exhaustion that suddenly poured out from all over his body, so tired that Mu Tian almost fell asleep at this moment!

"It's bad, the effect of the Energy Pill is over!" Faced with such a huge sense of exhaustion, Mu Tian immediately reacted that this was the result of the failure of the Energy Pill, and at this time, half a month had passed since Mu Tian took the Energy Pill.

Although the Energy Pill made Mu Tian energetic in the past half a month, it seemed that it was just a kind of covering and cover-up, and the fatigue accumulated over time had been buried in Mu Tian's body, and when the effect of the Energy Pill disappeared, it all emerged.

"Arthur, let your men execute according to the plan!" Mu Tian only had time to command this sentence, and then fell asleep directly under the Shu Shen Tree, and his voice was earth-shattering, as if he could shake the entire Shu Shen Wood.

And Arthur and Li Wei on the side smiled helplessly, Mu Tian can go to sleep, but they can't, they still have their own tasks to do.

——————————

Mu Tian was awakened by the sound of a horn that penetrated the heavens and the earth.

Although he slept for 12 hours, Mu Tian still felt uncontrollable fatigue at this time, not that the sound of the horn was too loud, and it seemed to be blowing from his head, Mu Tian would never be awakened!

"What kind of horn is this?" Mu Tian opened his eyes and asked subconsciously.

"This is the clarion call for the start of the event! It's the horn of the god of Shenmu! The ancient queen, who had been waiting by Mu Tian's side, said lightly, "It's already 8 o'clock in the morning, and the first wave of poisonous beast attacks is about to begin!" ”

"What! Then let's hurry up to the walls! Mu Tian immediately jumped up from the ground and grabbed the hand of the ancient queen, only to find that the ancient queen was very cold.

At the same time, when the ancient queen got up, her steps were still a little staggering, as if she had become very stiff.

"Queen! How long have you been guarding me here? Mu Tian raised his head and found that he was still under the Shu Divine Tree, so he couldn't help but ask.

"Soon, it's just one night!" The ancient queen said calmly and as a matter of course.

"You stupid woman!" Mu Tian kissed the ancient queen on the face hard, and then directly picked up the ancient queen, and at the same time spread a pair of wings behind his back and flew towards the city wall in the distance.

The Poison Beast Siege has finally begun!