The war fortress of tianwai demons is not only able to take tianwai demons across space and protect those with insufficient strength from the power of space. In the war of immortals and demons in ancient times, extraterrestrial demons came in the endless void and attacked the monastic world from the endless void. Therefore, the defense of war fortress also has a very strong resistance to the threats such as void storm in the endless void.


    You know, for the world of monasticism, the real treasure is not on the ground, but in the endless void. In the endless void, a meteorite may fly casually, which is a huge spirit stone that can top a spirit vein, and even the whole is a top-grade spirit stone. If you fly over a meteorite, it may be some precious metal. Picking a piece from it can make the monks in the domain crazy.


    In fact, everyone knows that the endless void is a great treasure, but without the cultivation of the earth fairy realm, entering the endless void is no different from dying. Even the immortal Daozu should be very cautious in the endless void. It is impossible to regard the endless void as his own back garden.


    In ancient times, a group of immortals established Xianting, from Xianting heavenly palace to various immortal family magic weapons. If only relying on "mortal" resources, it would be impossible to meet such needs. It can be said that most of the resources consumed in the establishment of Xianting are taken by the immortals from this almost inexhaustible treasure.


    Ye Zan is very clear that if yuqingzong wants to develop and one day return to the peak ten thousand years ago, it is far from enough to rely on the resources in the domain. After all, in these ten thousand years, in addition to the depletion of resources in the domain itself, more importantly, due to the decline of yuqingzong, many things that used to belong to yuqingzong have been divided by other sects.


    Those things that have been divided up are in the hands of others. It is almost impossible to get them back without the use of force. No one wants to spit out the cake he has already eaten, unless you punch him in the stomach. However, yuqingzong may be able to deal with one or two sects. Can he deal with ten or eight or more sects? In that case, didn''t yuqingzong become the public enemy of the domain!


    Therefore, there is basically no need to consider the resources in the domain. If you want to obtain more resources for development, you must focus on the endless void.


    Of course, to simply fly into the endless void, even if there is no war fortress of extraterrestrial demons, ye Zan has star warships in the world of science and technology.


    But the problem is that ye Zan has done experiments for a long time and wants to launch satellites in Shenhua domain. However, it may be because of the nature of power, or the influence of some special law of the world. The defense measures in the world of science and technology are as vulnerable as paper in the face of the void storm.


    As a result, the plan to launch the satellite has been shelved until now, let alone looking for resources in the endless void.


    Now that ye Zan has obtained the war fortress of tianwai evil, it means that he is finally able to enter the endless void. Naturally, he will not leave the war fortress idle there.


    War fortress wants to operate normally, just like the space fortress in the world of science and technology, it needs a large number of staff to be responsible for all aspects of work. Especially in this war fortress, there is no complete artificial intelligence control system. Many things that can be done by artificial intelligence still need to be operated by people.


    Of course, after getting the war fortress, ye Zan replaced the original intelligent master control in the fortress with the artificial intelligence of the world of science and technology, and also transformed the artificial intelligence control of the fortress. There is no way to transform it. He can also make robots to take charge of those operations instead of personnel.


    Therefore, ye Zan doesn''t need other people''s help in manipulating the war fortress. He can do it only by his own means.


    However, a fortress of war, especially in such a world, just making it work is not enough. In the war fortress, there must be enough strong people to take the seat, so as to ensure the safety of the fortress in the face of all kinds of accidents. Otherwise, it is likely that yezan will be invaded and destroyed by others, just like when yezan invaded the war fortress at the beginning.


    It was out of this consideration that ye Zancai had an invitation to the Lin family''s sister and brother. He hoped that the sister and brother would become members of the war fortress and help themselves sit in the war fortress.


    "Since brother ye can trust us so much, can my sister and brother say no?" after hearing Ye Zan''s explanation, Lin Miaomiao didn''t hesitate any more and simply nodded.


    But Lin Lin was intrigued again and asked Ye Zan curiously, "brother ye, do you mean that we can take this fortress when we go to tianwai world in the future, just like when tianwai demons invaded our domain?"


    "Of course!" Ye Zan nodded, and then added: "not only to go to the outer world, the defense ability of this fortress can resist many threats in the endless void, so I''m also going to try to enter the endless void for a while."


    "Wow, go to the endless void! That''s the place where the earth immortal Taoist ancestor can go. Even my Shizu dare not go too deep." hearing Ye Zan''s words, Lin Shudun was even more excited.


    After all, just as people in the world of science and technology yearn for the stars, the monks in this world also have a similar yearning for the endless void. This is not only because of the resources in the endless void, but also because of the spirit of adventure, just as people on earth like to climb all kinds of dangerous peaks.


    For Lin Limu, it''s definitely a huge temptation that can''t compare with anything to go to a place where Shizu''s freedom and supremacy dare not go deep.


    "Yes, go to the endless void. It is said that there is an inexhaustible treasure in addition to the ubiquitous dangers. If Yuqing wanted to develop, the demand for all kinds of resources would increase greatly. Instead of grabbing food on the ground with other sects, I''d better turn my eyes to the endless void. But there are too many unknowns in the endless void. I''m afraid I can''t guarantee everything by myself Once lost, I just want you two to sit in the fortress and help me. "Ye Zan didn''t hide anything, but directly told his intention to the Lin family.


    Ye Zan wants the Lin family to stay in the fort for a long time. The two sides will almost be a cooperative relationship. Some things naturally need to be explained first. Otherwise, just by satisfying curiosity is not enough to keep people. After all, Lin Mu''s curiosity about the endless void cannot exist forever.


    "Don''t worry, brother ye, as long as you need me, just open your mouth. My frown is a puppy!" Lin Mu patted his chest and said to Ye Zan.


    After accepting the invitation, the Lin family said goodbye to Ye Zan and left tongtianfeng. After greeting Mo Rushi and others on the side of yuqingzong, they returned to the war fortress. In the war fortress, ye Zan has sent a message to the artificial intelligence of the fortress through wireless communication, which has improved the authority of the Lin brothers and sisters in the fortress. In addition, a quiet room for cultivation has been arranged for the Lin brothers and sisters in the fortress.


    As for the quiet room for cultivation, ye Zan doesn''t have to rearrange it in the fortress. After all, the demons outside the sky also need to be cultivated and closed. Therefore, in this war fortress, there is already a ready-made quiet room for cultivation, which can be used directly by opening the door.


    The Lin brothers and sisters have mastered the Tao realm. In fact, they have met the requirements of Yuanshen realm in terms of their own Avenue. However, due to the problem of aura in this world and the short time of practice between sister and brother, their own mana accumulation is not enough. For the two brothers and sisters, as long as they can push their mana to the boundary of yuanshenjing, it is natural to promote yuanshenjing.


    The two star soul gathering elixirs were originally used by the Supreme Master of heaven to supplement mana. It can be imagined that the aura contained in them is huge. Originally, with the cultivation of the Lin family''s sister and brother yuanyingjing, if you really take this level of julingdan, even if you won''t burst the elixir field, 99% of the medicine will be wasted.


    However, the two star spirits gathered in the elixir, which had been kept in the white skin gourd for nearly ten thousand years, and its medicine had already become extremely mild.


    Or it can be said that the pill without warm cultivation is like a spoonful of honey. Although it is very sweet when eating, it is only sweet for a while. After warm cultivation, the pill, in addition to removing a lot of impurities, is like a hard candy made of honey, and it can''t bite at all. Just because you can''t bite, you can only melt it with saliva and get the sweet taste bit by bit, which prolongs the time to taste the sweet taste.


    In other words, after such a long time of warm cultivation, these two star soul gathering elixirs are no longer suitable for supplementary mana. Although, with the supreme cultivation of Tongtian, after taking such pills, you can also urge the mana to forcibly crush the pills, after all, it''s still not as direct as yourself.


    The Lin brothers and sisters returned to the fortress, each entered the quiet room, and then took the star soul gathering elixir, just like containing an unbreakable hard candy. A trace of aura was "melted" from the pill. With their running mana, they continuously gathered in the elixir field and poured into Yuan Ying''s body.


    Of course, this "trace" aura is only relative to the huge aura contained in the pill itself, but for the Lin brothers and sisters who are only Yuanying realm, it is still as turbulent as a torrent in the meridians. However, they can bear this surge, or even control it. They don''t have to worry about any damage to the meridians.


    Besides Ye Zan, after the Lin brothers and sisters left, he also returned to the "closed" place of Xuanyuan Daozu, the square and open space in front of the former Yuqing hall. He didn''t manage the repair work of tongtianfeng. Anyway, those engineering robots and Yuanshen mechanical soldiers will automatically act according to the set plan.


    Ye Zan chose a place not to be disturbed and took out the ice yuan crystal marrow presented by Gou Chen.


    This ice crystal pith is a fist sized blue crystal, which emits bursts of cold, but it is not very cold in your hand. However, if you don''t pay attention to the coldness of this thing because of this, I''m afraid you''ll suffer a big loss.


    The chill of ice crystal pith is a bit like the so-called "moistening things silently". When you really feel the threat of cold, it is impossible to throw it out. Both your body and your God are frozen by the cold. You can''t do anything anymore. You can only wait for yourself to become an ice sculpture from inside to outside.


    After the ice crystal pith was taken out, almost in the blink of an eye, the area where ye Zan was located was covered with a layer of frost. Fortunately, ye Zan had known everything about this thing from Supreme Master Gou Chen, so he wrapped his palm with Ruyi''s variety when he took it.


    You know, ye Zan, the core material used by Ruyi, is a ghost bead from the monarch level Yin ghost, which contains the Qi of Zhiyang from the cathode. Although the Qi of Zhiyang may not be comparable to the cold of Bingyuan crystal pulp, it is no problem to protect Ye Zan from the cold.


    When ye Zan received the ice crystal pith, he already had a plan in his heart. How to use the power of the ice crystal pith is to refine it into Ruyi''s variety. Perhaps, the reason why supreme Gou Chen chose to present this ice yuan crystal marrow to him is because he has seen him use such a magic weapon as Ruyi and variety.


    Ye Zan loosened his hand at this time, and the crystal marrow of Bingyuan didn''t fall to the ground, but floated in the air in front of him. It was surrounded by cold condensed white fog, as if it were flying in the clouds. Of course, the ice crystal pith has no will. Naturally, it is impossible to ride the clouds by itself. This is just because ye Zan''s gravity control means.


    Ye Zan opened his hand and pinched the formula with both hands. Ruyi flew out of his body like two silver dragons circling around the crystal marrow of Bingyuan. In the course of circling, some particles completely invisible to the naked eye flew out of the two silver dragons and landed on the ice yuan pith. These particles, like nanoworms, began to work like those engineering robots on the surface of ice crystal pulp.


    Although the surface of the ice crystal pith looks as smooth as a mirror, if you change the perspective to the micro perspective of the nano level, the smooth surface will become pitted. Among these potholes, those nano insects that are willing to change constantly divide the nano particles of ice yuan crystal pulp and then integrate them into their own structure.


    Originally, ye Zan''s Ruyi is changeable, with the monarch level Sha Zhu as the core. Due to the power of Zhiyang, it can be called a magic weapon of Zhiyang. Therefore, when using Ruyi to change other magic weapons, if it is a magic weapon that changes Yin attribute, it is not that it cannot be changed, but the power must be affected.


    Now, ye Zan''s plan is to add the particles of Bingyuan crystal pulp to Ruyi''s changeable particle structure to form a yin-yang balance with the yin-yang force of Shazhu.