Using alchemy, Shui Rourou and Fang Yongyong processed all the materials needed to make the energy core and control core of the mage tower, and only waited for Shi Feng's cultivation to finish and take out the demon core of the demonic beast, and he could immediately make the energy core and control core. Shui Rourou and Fang Yongyong believe that the energy core and control core they make must be the most powerful, even the energy core and control core in the most powerful mage tower in the empire cannot compare to the ones they make, because the materials they use are too advanced, all of them are the top materials, the materials on the demonic beasts at the peak of the holy domain, even the empire does not have such great courage, and the materials on the power cores and control cores of the mage tower are made with so many materials from the demonic beasts of the peak strength of the holy domain.

"Why hasn't Shi Feng come out yet, how long have you been cultivating, and it should have come out, if you don't come out again, when will we finish making the energy core and control core of the Mage Tower?" The Mage Tower not only needs energy cores and control cores, but also makes a lot of magic cannons, which really doesn't understand our hard work at all. After processing all the materials for making the energy core and control core of the Mage Tower, Fang Yongyong and Shui Rourou waited for more than a month, but Shi Feng still did not appear, which made Fang Yongyong very dissatisfied, and Shi Feng was too irresponsible, only caring about himself.

That being said, however, Fang Yongyong also understood that the reason why Shi Feng was in a hurry to improve his strength was also out of the psychology of protecting them, otherwise, once the people here knew their identity and origin, Shi Feng would be able to survive, but they might not be able to survive, Fang Yongyong said this just to scratch a little.

"Didn't I come out? You're tired of waiting, aren't you? As soon as Fang Yongyong's scratch was finished, Shi Feng suddenly appeared in the mage tower and said with a smile.

"Where? We also know that it is very difficult to comprehend the law, otherwise, we would not have possessed the realm, and we would not have been able to go further. Shui Rourou said with a smile, and looked at Fang Yongyong with her eyes as she spoke, just now, Fang Yongyong was scratched, and I don't know if Shi Feng heard it.

"That's not what I heard, some people are complaining about me." As he spoke, he glanced at Fang Yongyong, which meant that I had already heard what you said.

"Who said what? Why didn't I hear it? Seeing Shi Feng looking at him, Fang Yongyong immediately denied what he had just said.

"The cultivation during this period of time must have gained a lot, right?" Feeling that the aura on Shi Feng's body was even more obscure, Shui Rourou asked with a smile. Although she had been following Shi Feng for a long time, she still found that Shi Feng had many secrets that he couldn't figure out, as if Shi Feng was always able to come up with a large number of precious materials, and his strength was also improving rapidly again and again, so that she didn't know how Shi Feng did it.

"Maybe, Fang Yongyong knows some, right?" Although she didn't get any information from Fang Yongyong's mouth, Shui Rourou believed that Fang Yongyong, who had been with Shi Feng longer than her, must know something.

"This harvest is not small, and I have comprehended several complete laws of the caste, and condensed several law seeds, and all of them are close to the level of perfect law seeds. This time it can be said that it is very rewarding, but I still haven't found a magical beast with the peak strength of the Holy Domain that suits your caste, so you can't try to quickly improve your strength like me. Shi Feng said with some regret.

This time, although he killed a lot of Sacred Domain-level Demonic Beasts in the Light and Dark Forest, and even some of them were at the peak level of the Sacred Domain, there were no Water Domain and Space Domains, which made Shi Feng always feel a little regretful, sorry for Shui Rourou and Fang Yongyong.

"Don't worry about us, isn't there still you, with you to protect us, what are we afraid of, besides, our strength is not low, if we really work hard, we may not lose to others." Shui Rourou said with a smile.

"Yes, yes, we are not weak, if anyone really comes to us for trouble, just wait for bad luck." Fang Yongyong also said on the side.

Listening to their words, Shi Feng was dumbfounded, he forgot that Shui Rourou and Fang Yongyong were not weak, they were already strong people in the Sacred Domain with the domain, and there were still bits and pieces of things on their bodies, the average Sacred Domain powerhouse with the domain really couldn't beat them, if they were desperate, they still had their own life-saving weapons, as long as they were not demigod powerhouses, there was still no problem with self-preservation.

"Also, after not doing anything for so long, I've forgotten that you are also masters." Shi Feng said with a smile. "Now that I've finished my cultivation, it's time to make the energy core and control core of the Mage Tower, this day, I've waited too long."

"Yes, the Mage Tower has been successfully built for more than a year, and the energy core and control core have only been settled now, which is really not easy." Shui Rourou also sighed.

"Haven't you got all the materials now? This time, it's up to you, how powerful the power core and control core of the mage tower are depends on your level. Don't let me down. Shi Feng said with a smile.

"Don't worry, for so long, we haven't put down alchemy, and now, our alchemy is even more powerful, and we are guaranteed to make you extremely satisfied with the energy core and control core we made." Shui Rourou said with a smile.

"That is, we are worthy alchemy masters, and there are not many alchemy masters in the Alchemist Guild who can compare to us. However, if we make Power Cores and Control Cores that satisfy you, do you have any rewards? Fang Yongyong also said.

Shui Rourou and Fang Yongyong, although they have not studied alchemy for a long time, but with a large number of high-level materials provided by Shi Feng, they still became alchemy masters in a short period of time, and their speed far exceeds those alchemy masters in the alchemist union, those alchemy masters do not have such good treatment as Shui Rourou and them, and there are enough materials for them to squander.

"Of course there are rewards, and they are something you can't expect, but it's absolutely satisfying." Shi Feng said with a smile.

"What the hell is it?" Fang Yongyong asked curiously.

"It's a secret, let's talk about it after you make the power core and the control core." Shi Feng was tight-lipped and didn't say what the reward was, "Stingy." Fang Yongyong said angrily, no longer paying attention to Shi Feng, but took the materials and prepared to make the energy core and control core of the mage tower.

The energy core of the mage tower is easier to do than the control core, and Shui Rourou and Fang Yongyong are ready to make the energy core first, and if it is successful, they will make the control core. There are many materials for making energy cores, but there is only one of the most important materials for making control cores, powerful blank souls, so that Shui Rou and Fang Yongyong have to be careful, careful, and careful.

Shui Rourou and Fang Yongyong got busy, and Shi Feng didn't have anything to help, so he had to hide out, and said to Shui Rourou and them, Shi Feng left the Duke's Mansion and went to the Alchemist Guild to find President Larsen. This time he left Yanjing and went to the Light and Dark Forest, but it took a long time, and he didn't show up for such a long time, so he didn't know anything about Yanjing's current situation at all, so he had to find someone who understood it as soon as possible and ask him clearly, and President Larsen of the Alchemist Guild was the best candidate.

Shui Rourou and Fang Yongyong didn't care about Shi Feng's departure, all their spirits had been focused on the energy core of the mage tower. They have never made the energy core of the mage tower, this is the first time they have made the energy core of the mage tower, and the materials used are all the top, if the manufacturing is successful, it is the top energy core, if the manufacturing fails, it will be a heavy loss, even if Shi Feng is unable to come up with such a top-level material in a short period of time for them to squander.

Therefore, this time, Shui Rourou and Fang Yongyong were under a lot of pressure, and they had to succeed once and create the energy core of the Mage Tower.

Although they had never made the energy core of the Mage Tower, after learning alchemy, Shui Rou and Fang Yongyong had made countless alchemy works with countless materials and accumulated rich experience, so for the energy core that had never been made, Shui Rou and Fang Yongyong still had full confidence that they could successfully make it.

Using alchemy, the magic cores of the peak level of the holy realm are carved out of tiny magic arrays, so that these magic arrays can operate successfully without losing the energy and laws in the magic core, and then, connect these magic cores with other materials and materials to form a complete whole, so that all the magic cores can operate normally, exert all the energy, and provide a steady stream of energy for the various magic arrays of the mage tower. Even absorb all kinds of energy from other spaces, replenishing itself all the time, so that the Mage Tower will never lack energy.

After ten busy days, Shui Rourou and Fang Yongyong finally succeeded in manufacturing this energy core, which can be said to be the top level, the newly created energy core is like a ball the size of a human head, exuding colorful light, on which countless magic arrays are densely depicted, and terrifying energy fluctuations continue to radiate around, and at the same time, strands of terrifying energy are sucked into the energy core and turned into the energy of the energy core itself.

(To be continued)