Chapter 544: Noise Barrier

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However, the third-ring spell mute force field needs eight hours of study time. After learning, the learning time of the fifth-ring spell advanced mute force field can be reduced by 16 hours.

Zhang Yanhang did a simple calculation. If he had finished learning the two pre-spells, then there would only be 39 hours of study time left for the five-ring spell Advanced Silent Force Field, which was 19 hours less than before.

Even if you remove the 9.5 hours needed to learn the zero-ring trick sound barrier and the third-ring spell silent force field, you can save an additional 9.5 hours. Therefore, learn the pre-spells first and then learn the five-ring spell advanced silent force field. Overall speaking Still very profitable.

Therefore, with the idea of ​​learning the five-ring spell advanced mute force field faster, Zhang Yanhang first started to learn the zero-ring trick sound barrier, and after learning the zero-ring trick sound barrier, he continued to learn the three-ring spell mute in turn. Force field and five-ring spell advanced mute force field.

"Since the learning progress bar is only one and a half hours, then I should be able to learn the sound barrier before get out of class is over, but I just don't know if something will go wrong in the middle."

In addition to wanting to complete the prerequisites, the reason why Zhang Yanhang first learned the sound insulation barrier was also because he wanted to use this most basic zero-ring spell to familiarize himself with the specific process of spell learning.

…………

On October 21st, the thirteenth day after the Mid-Autumn Festival holiday and the National Day holiday, and also the first day Zhang Yanhang left the world of ashes, at 9:40 in the morning, the public classroom of the university.

After studying the spell for an hour and a half solidly, Zhang Yanhang finally learned the zero ring trick sound barrier.

"It really took so much time. The progress bar in the spell library is so accurate."

Zhang Yanhang couldn't help sighing. He thought he could already use six-ring spells, so there might be some bonus when learning this zero-ring trick. In the end, he didn't feel the bonus at all. It can be said that the automatic instillation of talent, which is the same as hacking, may indeed be completely different from learning spells by yourself.

"Since the learning time of the zero-ring trick noise barrier is estimated so accurately, it is estimated that the third-ring spell's silent force field and the fifth-ring spell's advanced silent force field are about the same. From this point of view, I want to learn this five-ring spell. I am afraid that the advanced silent force field of the spell does not require 48.5 hours of solid learning.

So, the question is, do I really have so much time to use? It is now 9:40 on October 21st, rounded up to ten o'clock, and I will enter the hematite vein at about five o'clock in the afternoon on October 24th.

In other words, I have a total of 79 hours left, and after subtracting 47 hours, there are only 32 hours left, and I need to sleep for 4 hours a day, adding up to 16 hours in four days. "

Zhang Yanhang was surprised to find that after he learned the advanced silence spell, he could only rest for 16 hours at most, and he still had a lot of things to deal with during these 16 hours.

"I feel so busy for no reason. Why is my time so short?" When Zhang Yanhang first returned to the main world, it never occurred to him that just learning a spell would take up so much time. make him so busy.

"However, although I'm really busy, I can't learn this high-level silent force field..." Zhang Yanhang reckoned that he would definitely not learn this kind of high-level spells in the future unless there was a real need. Yes, after all, he really doesn't have enough time.

By the way, the function of the zero-ring trick sound insulation barrier that Zhang Yanhang has learned so far is relatively useless. After releasing it, it can form a barrier with sound insulation effect, but this barrier can only be fixed in place, and it can only cover a small area. The range is about a few meters away.

But after all, it's just a zero-ring trick, and Zhang Yanhang can't expect too much. Anyway, the important thing is the third-ring spell's silent force field and the fifth-ring spell's advanced silent force field.

"At first, I thought about studying alchemy potions and magic tattoos after I came back, but now it seems that I don't have enough time..."

Because the thermobaric bomb +3 in the pocket is used to fuse the thermobaric bomb +5 or even +7, it also takes a lot of time, so Zhang Yanhang suddenly has the idea of ​​​​making himself a real time-pause ability. .

In that case, he doesn't have to worry about running out of time. Of course, if he can change objects while time is suspended, then he may be invincible directly, and he doesn't need to improve his strength at all. Contradictory question.

"It's okay if you don't have enough time before you come back, but you still don't have enough time after you come back, it's outrageous! Obviously I have been free and doing nothing before..."

Just when Zhang Yanhang wanted to continue complaining about the lack of time, he suddenly found a new message on his phone.

Before Zhang Yanhang clicked on it, he thought it was sent by the group leader or Li Zerui, but he didn’t expect it to be a class group announcement. The counselor said that the awakened people in the class and some students with higher cultivation qualifications should listen to it later Public class.

"What's the content of the public class that limits the cultivation qualifications? It seems that I have never heard of it before. Forget it, it doesn't matter. It's the same wherever the class is taught. I'd better go and have a look." Zhang Yanhang glanced at the public class again. The start time is the same as the third class time, starting at ten o'clock.

"By the way, if I go to the public class, it shouldn't be counted as my absence?" Zhang Yanhang felt that the time of this public class was quite strange, because before, he usually chose such a time when there was no class like noon. .

"No, compared to the public class, it is more important to think about what to do next." After learning the zero-ring trick sound barrier just now, Zhang Yanhang wanted to take a break, do something else first, and then go to study Three-ring spell mute force field.

Zhang Yanhang thought about it carefully, and felt that the second most important thing besides learning spells should be the fusion of thermobaric bombs, so he took out 8 ordinary thermobaric bombs from his pocket and began to fuse thermobaric bombs + 3. It takes five minutes to press bombs +3, which is just enough for him to fuse four thermobaric bombs +3 before the public class.

Zhang Yanhang had already gathered 16 thermobaric bombs + 3 needed to fuse thermobaric bombs + 7 before, but later consumed 4 thermobaric bombs + 3 and fused them into a thermobaric bomb + 5 and immediately It was used up, so now he has to re-fuse four thermobaric bombs + 3 to be used to fuse thermobaric bombs + 7.

That's right, Zhang Yanhang is still thinking about fusion +7, but this time he should definitely not suspend fusion for some time reason.

…………

On October 21st, the thirteenth day after the Mid-Autumn Festival holiday and the National Day holiday, and also the first day Zhang Yanhang left the world of ashes, at 10:20 in the morning, the open classroom.

At the beginning, Zhang Yanhang was not in a hurry to manipulate the alchemy fusion thermobaric bomb +4, because he found that the person speaking on the stage came from the relevant department, and he was a third-level awakened person. At the same time, Zhang Yanhang also wanted to understand why the awakened ones came here to attend lectures, and it was indeed more relevant.

But after Zhang Yanhang listened carefully for a while, he found that the awakened person from the relevant department didn't seem to have any useful information, but seemed to come to advertise to recruit people, which made him feel very strange, because he remembered There has never been a situation in which relevant departments are short of people.

This is like the vacancies for civil servants before the spiritual recovery. During the exam, hundreds of people took the exam together, and finally only three were admitted, but in fact, the ones with a slightly lower ranking are also very good. If there are not enough people, just relax the quota a little bit. Just limit it.

Therefore, because the situation of the relevant departments is relatively similar, Zhang Yanhang really did not expect that there would be a day when there would be a lack of staff.

But after Zhang Yanhang listened for a while, he found that it was not a simple lack of people, but more like a large-scale expansion of the relevant departments. Speaking of this, Zhang Yanhang couldn't help but think of the third-order female awakener he met before. Zhou Muxi, she recently joined the relevant department out of nowhere.

After preparing, Zhang Yanhang asked Zhou Muxi after the public class was over to see if she knew the specific situation. Of course, Zhang Yanhang was just asking, purely out of curiosity, and had no thought of joining. relevant departments.

After all, he is so busy as a vagrant now, if he joins the relevant departments, even if it is not even the time to go to the world of ashes to hunt monsters will be less, that is not good, compared to the resources that the relevant departments may give Chunchun belongs to throwing away the watermelon and picking up the sesame seeds.

Moreover, to Zhang Yanhang's disappointment, it seems that the third-level awakened person in the relevant department does not have the authority to directly pull people in. He just said that they will give these students a chance to take an exam and interview. Whether they can join the relevant department depends on the exam. And the interview and failing, which is a bit meaningless.

Therefore, after carefully listening to this third-order awakened person bragging about how good the welfare of the relevant departments are for 20 minutes, Zhang Yanhang finally chose to continue to integrate thermobaric bombs +4.

Next, he needs to fuse sixteen thermobaric bombs + 3 into eight thermobaric bombs + 4. Based on the calculation that each thermobaric bomb + 4 takes ten minutes, the whole process should take 80 minutes.

The duration of this public class is also two hours, so Zhang Yanhang should be able to successfully fuse all the thermobaric bombs +3 into thermobaric bombs +4 before get out of class ends.

Because Zhang Yanhang had planned to fuse thermobaric bombs in class from the very beginning, he deliberately chose the most inconspicuous corner near the back door, and also released the sound barrier experiment that he had just learned. concrete effect.

At first, Zhang Yanhang thought that he was a high-level mage who could release six-ring spells. Even if he did not practice this kind of zero-ring trick, he would be able to roughly achieve an effect similar to an instant cast. The ring trick made him release it for a second.

Although this speed is many times faster than that of a real mage apprentice, Zhang Yanhang is definitely not very satisfied.

Zhang Yanhang reckoned that if he really became a mage in the dnd world, he probably belonged to the kind of cannon fodder mage who was hacked to death by the enemy on the spot as soon as he entered the battlefield.

After all, even if the enemy's hand speed is average, it is definitely not a problem to slash him once before he finishes casting the spell. It is even possible to use this second to slash two or three times.

But fortunately, Zhang Yanhang is not a pure crispy mage after all, but more like a melee mage, so it doesn't matter if the spell release is a little slower, anyway, the enemy can't break his energy shield at all.

Moreover, things like silence spells don't need to be released in front of the enemy on the battlefield. Therefore, he thinks that the slow release speed can be tolerated, as long as it can work normally.

Just as Zhang Yanhang was concentrating on fusing thermobaric bombs +4, a sneaky figure slipped in through the back door and sat in an empty seat next to Zhang Yanhang.

Zhang Yanhang glanced at him, but he didn't expect to be an old acquaintance, and Zhao Yalan had met once this morning.

"Why are you here?!" Zhao Yalan, who sneaked in, turned her head and saw that the person sitting next to her was Zhang Yanhang, who was startled.

"Guess?" Because Zhao Yalan has already entered the range of the sound barrier, Zhang Yanhang doesn't mind chatting with her for a while, after all, he does have some things he wants to ask.

"Are you here for the open class?" Zhao Yalan frowned.

"It's really better to listen to what you say than to listen to what you say. Are you talking nonsense? You randomly killed a hundred lucky viewers in this classroom, and all of them came to the public class. There is absolutely no chance of being spared." Zhang Yanhang couldn't bear it. Stop complaining for a while.

"Then you still let me guess?" Zhao Yalan decided to take advantage of this open class to have a good chat with Zhang Yanhang.

"Then why did you ask in the first place? It's because you asked something wrong." Zhang Yanhang felt that Zhao Yalan must definitely take the blame for this.

"I actually didn't expect you to be a student at the same school as me. How old are you? Freshman or sophomore?"

Zhao Yalan originally thought that Zhang Yanhang had been calling her senior sister just as a disguise to confuse herself, but she didn't expect to run into her again in an open class at the school just two hours later, well, maybe also No coincidence, after all, all the awakened people in the university have to come to listen to the open class.

"Guess?" Zhang Yanhang asked this classic question again.