It turned out that this was the case. Huo Yuhao suddenly realized and said gratefully: "Thank you, Qiuqiu... Then I will go back and ask the senior brother if he can allow me to go."

Nan Qiuqiu nodded and said, "Okay, then I'll go find my mother too. Ask her if she has time recently. Alas, the territory of our sect has been occupied by the Yueyue Empire. If you go back, you have to be careful."

Huo Yuhao smiled and said, "It's okay, it's not a dragon's nest. We have even broken through the Death Soul Guide. Are we afraid of the ordinary army of the Yueyue Empire?"

Nan Qiuqiu laughed and said, "Senior Brother has just finished teaching you a lesson, and you are now so proud again. Are you not afraid that I will complain to you?"

Huo Yuhao smiled and said, "I'm not afraid, you are not that kind of person. Qiuqiu is the most righteous."

Nan Qiuqiu snorted and said, "It seems that I can only be brothers with you in this life."

Huo Yuhao laughed and said, "It's good to be brothers! Look, I'm very good to my brothers. Okay, I'll go find Teacher Xuan first, and let's talk about it later."

In the next few days, Huo Yuhao completely entered the busy mode. It took him more than three hours to discuss with Xuan Ziwen, and then he devoted himself to the development of fixed-mounted soul-guided artillery shells. Xuan Ziwen handed this task directly to him. In Xuan Ziwen's words, it would be easier to complete this task with his ability.

As for going to the Earth Dragon Gate, Beibei told him that he could go after he completed this task.

During the experiment, Huo Yuhao wanted to go to the Sea God Island again and ask Lao Xuan about the problems he encountered in the previous **. However, after he devoted himself to the experiment, he could not extricate himself. It was not until half a month later that the entire experiment was completed that he had freed up his time.

The low-priced fourth-level fixed-mounted soul guide shell was completed. Compared with the normal fourth-level fixed-mounted soul guide shell, its power is only about two-thirds, but its range is almost the same. This is determined by the material itself. Moreover, even Xuan Ziwen is already amazed at the moment to achieve this step.

Huo Yuhao used some small tricks, among which the most important point is the delay triggering device of fixed-mounted soul guide shells.

When firing the fixed-mounted soul guide shells, they usually rely on the jet at their tails to achieve long-distance explosion. The push device and the power device should be distinguished, and the middle is separated by high-strength rare metal. The more powerful the fixed-mounted soul guide shells, the more precious the rare metal needed to be separated.

However, in Huo Yuhao's design this time, he did the opposite, and he used a brand new triggering technology.

First of all, because this fixed-mounted soul guide shell was specially designed for Zhuge Divine Crossbow, Huo Yuhao fully utilized the jet ability of Zhuge Divine Crossbow.

The Zhuge Divine Crossbow cannon itself can push the fixed-mounted soul-guided artillery shells for about two kilometers. Within this distance, if the fixed-mounted soul-guided artillery shells are triggered, it will undoubtedly waste energy.

Huo Yuhao did not use dual-areas to make fixed-mounted soul-guided artillery shells, but was purely single-areas. At the bottom of fixed-mounted soul-guided artillery shells, he used some of the principles of the machine to create a delay trigger device.

When the fixed-mounted soul guide shell is fired by the Zhuge God's Crossbow, it will be triggered, but because there is no push device, it should be the power device exploded directly.

However, with the delay triggering device, the speed of starting the power device will slow down. This process takes about a few seconds. In these seconds, the fixed-mounted soul guide shell itself is pushed out two kilometers away. Then when the power device is detonated, the induction device in the middle of the mechanical enclosure acts, and within the power device, it is divided into two stages, part of which is the secondary push device. This secondary push device will push the fixed-mounted soul guide shell to re-accelerate, reaching the original speed of the fourth-level fixed-mounted soul guide shell, and fly to the distance. Because of the initial bore-out speed, it only needs to complete the acceleration. In this way, energy is greatly saved. Although the final power device is weakened due to the reduction in volume, don't forget that the shell and mechanical enclosure device of this fixed-mounted soul guide shell are all completed by iron spirits! It is extremely difficult to do this.

Such a fourth-level fixed-mounted soul-guided shell is two-thirds of its normal power, but its cost is only one-tenth. This is not considered as rare metals are priced but not marketable. It can indeed be promoted and produced on a large scale.

Of course, this research by Huo Yuhao is only that. It is difficult to achieve more powerful fixed-mounted soul-guided shells above level 5 to use this method because they are too powerful and rare metal is still needed as the shell. However, learning from Huo Yuhao's method can undoubtedly save materials to a certain extent by higher-level fixed-mounted soul-guided shells.

Finally, after Huo Yuhao reported his experimental results to Beibei in a dilemma, he sat on the chair in front of Beibei with excitement and drank water. In the past half month, he was exhausted.

Looking at Huo Yuhao's excited look, Beibei couldn't help but smile. After Huo Yuhao and others came back, they shared a lot of work for him, and he had a lot of relief in the past half month.

"Yu Hao, since the experiment has been completed, when are you going to leave?" Beibei asked.

"Go? Where to go?" Huo Yuhao asked in confusion.

Beibei was speechless and said, "Your memory is inclined to decline! Have you forgotten to agree to Qiuqiu? People are helping us. You can't delay it again and again. Go and see if it is a high-level rare metal, just get it back."

Huo Yuhao then remembered the conversation he had with Nan Qiuqiu that day, scratched his head embarrassedly and said, "Okay. Senior Brother, I'll go in two days."

Beibei said: "Okay, then in two days, you will take a break in the past two days. You can't study it without Yue and Ye in the future. Look at Teacher Xuan, now a soul guide madman is now."

That's right? Xuan Ziwen has now become the busiest person in the entire Shrek City, but it's strange that in this busyness, he has finally broken through the title Douluo level and is developing his unique level nine soul guide recently. Once his development is completed, he will be a formal level nine soul tutor, and he is a more powerful existence than an ordinary level nine soul tutor.

Huo Yuhao smiled and said, "I can't rest. I had some questions in the ** before. I happened to ask Mr. Xuan these two days. Senior Brother, if nothing is wrong, I will leave first and go directly to the Sea God Pavilion. You want to find me and ask me there to go there and call me."

After saying that, he ran out in great enthusiasm. To him, every minute is so precious now.

In the past half month, his soul power has been increased by another level, and now he is a level 74 control system war soul saint. This improvement is his accumulation, coupled with the results of his research on the soul power of beasts since the beginning of this day.

Because he has been doing experiments, Huo Yuhao has not summarized his previous experiences even further. Now that the experiment is over, it is time for him to work hard in that aspect.

"Yuhao, wash and change clothes first before going." Beibei shouted behind Huo Yuhao with a smile.

"I understand." Huo Yuhao agreed, and the person was gone.

Beibei smiled and shook her head helplessly. She leaned gently on the back of the chair. Suddenly, he seemed to remember something, opened the drawer in front of him, and took out a small jade box from it.

In the jade box, there was a faint pink light flowing. This was what the Youxiang Qiluo Immortal Product gave him. It was one of the two key treasures to save Xiaoya. However, until now, the Blue Silver Emperor still has no trace.

Xiaoya, where are you? How are you now?

When she thought of Xiaoya, Beibei's eyes became gentle, but in the gentleness, there was still deep concern. It has been so long since there was no news about Tang Ya. Undoubtedly, she must have been completely influenced by those evil soul masters and lost her consciousness.

Beibei really wanted to find Xiaoya desperately. He had already decided in his heart that after the equipment of the three soul tutors was fully built this time, he would leave the Tang Sect to find Xiaoya. No matter what the price he paid, even if he couldn't find Lan Yin Emperor, he would still bring Xiaoya back first.

After leaving the Tang Sect, Huo Yuhao headed straight to Shrek Academy. Now the academy can be said to be in the inner city. Although Shrek City was expanded, Shrek Academy did not. It was just that the Soul Guidance Department added an experimental site outside.

At present, the mainland war has emerged, and even Shrek Academy is no longer absolutely safe. Except for students who have already attended the college, the number of new students is decreasing. Even Shrek Academy is the case, let alone other colleges.

After entering the academy, Huo Yuhao headed straight to the Sea God Island. When he arrived outside the Sea God Pavilion, he bowed to the golden tree first, and then went to find Lao Xuan.

Old Xuan's complexion seemed to be better than when he met last time, so he asked Huo Yuhao to meet directly in his room.

"Old Xuan." Huo Yuhao came to Old Xuan excitedly, "My experiment was successful. We can now start making low-priced fourth-level fixed-mounted soul guide shells. If this thing is mass-produced, we will definitely bring a big surprise to the Yueyue Empire."

"Oh? Did it really succeed? You kid are indeed a genius!" Old Xuan said in admiration. In just a few days, Huo Yuhao completed the research of such a feat. Moreover, it cannot be copied by the Yueyue Empire.

After Huo Yuhao started his research, Beibei reported to Lao Xuan at the regular meeting of the Sea God Pavilion.

The war began, and Shrek Academy was no longer peaceful. The Sea God Pavilion meeting, which was originally rare to hold once a year, now has regular meetings held every month, and if there are special circumstances, it will be increased.

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Chapter completed!