Ye Fei was hesitating to share the formula of the super power furnace with these old guys, this was his secret weapon, if he shared the entire formula with them, he was really a little unwilling. After all, the minds of NPCs are too complex and unpredictable, who can know what they are thinking, let alone others, even if it is Lauren, it is betrayal to say betrayal.

It was impossible for Ye Fei to put all the bets on them.

Seeing Ye Fei's embarrassed appearance, Old Hansen said very painfully: "These little things are very expensive and difficult to obtain. If you can satisfy my curiosity, we can take out the treasured materials and make these small parts for you, you only need to give a material price, and we will do it for free. ”

Ye Fei's heart moved, he had not received these materials for more than a month, which was indeed a headache. If these NPCs did have materials, it would save him a lot of time, and he showed them in large part to find out the whereabouts of these materials from them.

Now that the goal has been achieved, but to let the formula leak, Ye Fei is still a little reluctant. He groaned for a moment and said, "I can tell you what this thing is, but as for his recipe, I'm sorry, I need to keep it a secret." Please understand that this thing is too important for our city, and I can't let his recipe flow into the hands of outsiders. ”

Lauren and Old Hansen looked at each other and nodded at the same time: "That's fine, we just need to know what it is." You know, as a good engineer, how new it feels to see something that we haven't even seen ourselves. You can keep your secrets, we just need to know what it is and what it is used for, and that's enough! ”

Ye Fei took a deep breath, showed the super power furnace, and introduced: "The super power furnace, based on an ancient engineering item Eternal Power Furnace, as for the effect, I think everyone should know, it is used to provide energy, my original intention is to install this furnace under the statue on our guild heights, it is a magic tower, if there is a super power furnace to provide power, he will send out a powerful attack." Hey? ”

Ye Fei said and found that Lauren and Old Hansen seemed to be wandering, and they were looking at the model of the super power furnace in a daze.

"Well, I'm talking about two mentors." Ye Fei looked at them, not only these two people, but the other engineers were also stunned.

"This ...... Doesn't seem to be modern technology? ”

"A powerful furnace, well, I don't know how much power he can make, but with the technology we have now, it's ...... It's an absolutely incredible piece of work. Let me think about it, think about it. Old Hansen pinched his chin in one hand as he walked around the armory.

Lauren's expression was similar, solemn and a little pensive, and his attention was no longer on Ye Fei's body at all.

Ye Fei looked at these engineers and could only wait helplessly.

After about ten minutes, Old Hansen suddenly rubbed his messy hair and shouted: "I don't understand, I don't understand it at all." Little guy, do you still have a lot of key parts hidden without letting us know. ”

"Ahem, Hansen, pay attention!" Lauren coughed dryly twice, glared at the impulsive old Hansen, this old guy really has no rules at all, where can the little guy call the little guy now, he is the lord of the city, it doesn't mean that he must be respectful, but a little respect is still required.

However, Lauren also knows that Old Hansen is such a temper that he launched a madness and didn't even give face to the Lord of Seaman City. This time, it was this old guy who angered the city lord in a rage, which would cause them to be punished together, otherwise, the punishment would be much lighter.

Ye Fei didn't care, he smiled and said, "Mentor Hansen, if I tell you all the parts, what's the difference between that and sharing the entire formula?" That's the exact opposite of what I just said. ”

Old Hansen scratched his head anxiously, and he muttered: "Super power furnace, this is a technology that has been completely lost, not to mention the furnace as a whole, and even the various parts in it are no longer made by anyone." Do you know what a power furnace is now? Hey, let's just talk about that thing on the siege chariot, that's already a very good energy source, but compared to the super power furnace, it's not even scum. I can conclude that the real purpose of this super power furnace is definitely not to make some magic tower, hell magic tower, what magic tower needs such a huge super power furnace? ”

Ye Fei was so frightened that he trembled, Nima, this old guy's brain is too bright, right? Can you guess that?

He said helplessly, "Actually, the real purpose of the Eternal Power Furnace is to power a cloud city, so that it can float in the sky all the time. ”

"A city...... Float in the air! ”

Old Hansen and Lauren both trembled with excitement: "What you said is true? ”

Ye Fei nodded, and said seriously: "It's true, the super power furnace is modified from the eternal power furnace, but the eternal power furnace is too complicated, I can't comprehend its complete formula, and finally the intelligent learning Dao super power furnace." ”

Old Hansen took a deep breath: "If the Eternal Power Furnace can hold up a city and float in the air, this super power furnace will definitely be able to hold up a castle and float in the air. ”

Lauren laughed, "Perhaps, we can build a war fortress that floats in the air?" ”

Old Hansen nodded excitedly, but quickly shook his head again: "No, no, no, this is not a simple matter. If you want to be a war fortress in Dajube, you can't just have power, we are good at making all kinds of machinery, but we are not good at building castles. ”

"Then, Askar Hammer!" Lauren rubbed his hands together excitedly and said, "This old dwarf owes me a favor, and if I go and ask him, he will be happy to help build a castle that can float, and he will be happy to do so." ”

"If you can move him, that's fine. However, the establishment of a war fortress is not so simple, we may also need to find two jewelers, find two powerful array mages, and of course, a lot of rare materials, only in this way, can we build the most powerful war fortress! ”

"It's going to be the greatest masterpiece in hundreds of years!"

Ye Fei listened to Lauren and Old Hansen's words, and was completely stupid, building a fortress in the air? The idea was just a spin in his mind and he threw it aside, but the two old fellows were fascinated by what they were talking about, and looking at their appearance, it seemed as if they were about to implement it at any moment.

Hey, what's going on, why are these two guys leaving?

Ye Fei hurriedly caught up with Lauren and Old Hansen, who were chatting and walking out: "I said what are you two going to do?" Just gone? ”

When Lauren saw Ye Fei, he reacted, and he patted his forehead: "Ah, I forgot about this stubble." I'm sorry Lord Castle, but we talked too much. ”

Old Hansen also remembered something, and said with a tangled face: "That...... Lord Castle, I really hope to get the complete recipe for the Super Power Furnace, and I can swear in the name of the Great God of the System that I will not tell this recipe to a third person. Even, like Lauren, I can be your follower, forever loyal to your follower, as long as you give me a little money every month, you can call me like a slave. ”

Ye Fei was sweating profusely, and Lauren had already shouted: "Old Hansen, how can you be like this." ”

Old Hansen glared at him: "Why not?" You can be a follower of the great, wise master, and I can't? ”

Ye Fei laughed out loud, isn't this guy stinky temper? Actually a sycophant?

Just when he was stunned, Old Hansen had quickly made the heaviest oath for NPCs, once he made this kind of oath, as long as he thought about breaking the oath in his heart, he would be punished, if it was this kind of oath that would not be leaked, he would not even be allowed to leak the secret.

Ye Fei looked at Old Hansen speechlessly, since the other party had made this kind of oath, he could only share the formula with Old Hansen, no matter what, the followers who made this kind of similar death oath are more reliable than the followers who did not make the oath, there is almost no doubt that they will betray, this is the game, everything about them is controlled by the system god.

Old Hansen just glanced at the complete formula twice, and immediately laughed wildly: "I see, haha, I finally understand that this is definitely a product beyond human intelligence." Just a cursory glance, many things that Old Hansen didn't understand had a feeling of sudden enlightenment at this time.

Lauren looked at it on the side, looked at the ecstatic Old Hansen, and then looked at Ye Fei, and finally gritted his teeth and made the same oath as the old Hansen.

Ye Fei was excited and speechless, these NPCs were also crazy, for the sake of a formula, they actually sold themselves, and the kind of oath they made was almost like a deed of sale.

Ye Fei let the two guys who were ecstatic when they got the formula study for more than half an hour, and made some gadgets here by himself. After that, he interrupted the two old madmen who had completely thrown him aside, and asked, "War Fortress, how sure are you that you can make this thing?" ”

"According to the concept, under the premise of sufficient manpower and material resources, we are ninety percent sure that this thing will be manufactured." Old Hansen thought about it and said with confidence.

"Ninety percent sure, hmm, how much time will it take?"

"If all the materials are in place, we won't need too long here, about half a year will be enough, but it will take a lot of time to build a castle, it will take a lot of time to install various weapons, it will also take time to debug, and it will take time to carve various secret magic circles, if it goes well, it will take about a year."

Ye Fei nodded and said, "If you want a castle, I have one." ”

"You have a castle?"

"Yes, you two come with me and see how he is." Saying that, Ye Fei took the two of them to the military camp in the guild heights, and came to Tieyuan Castle through the teleportation array.

As soon as the two of them walked out of the teleportation array, they felt something strange: "This is ...... Ah, no, this is not the Cloud Dragon Empire! ”

"Moreover, this space is very peculiar, and it seems to exist independently from the mainland."

"Yes, this is the Alnoton district, as for this space, because I have become a so-called traitor to the city of Most, and I am being hunted down, and this place as my territory has been regarded as a thorn in the side of the expeditionary force."

"Aha?" Lauren and Old Hansen looked at each other, feeling that the master they were following or a villain? But what the hell, as long as you can improve your engineering skills, even if you're following a demon?

The two of them left the teleportation array and began to walk around the castle, and as they walked, Old Hansen muttered, "No, no, this castle is not good at all." Although its overall layout is very good, the materials used are simply rubbish, look at it, how can these ordinary materials withstand the attacks of those powerful magicians? ”

Lauren has a different opinion: "If it's a flying fortress, I think it's completely enough." After all, castles fly in the air, and how many people can actually attack this castle in the air? ”

"Hey, anyone who can attack the Flying Fortress must be a powerful person, and such a wall can withstand several attacks from others? I bet no more than three times! ”

"Have you forgotten, we still have to carve all kinds of secret magic circles around the castle, and with these defensive secret magic circles, we can resist a few more times. In addition, we can also make a large-scale energy shield, with the energy of the super power furnace, it is enough to maintain the full deployment of such an energy shield. ”

"Huh, energy shield? That's a good idea, but I would like to remind you that if you want to build a real war fortress, then every detail must not be overlooked, and the materials of the castle are a major issue that cannot be ignored. ”

Ye Fei listened to the argument between the two, and only felt that his head was big for a while, the vision of these two guys was too high, didn't he think about his feelings? A higher grade of material? Where did he come from?

Just as Lauren and Old Hansen were arguing and almost pinching each other's sleeves, the two suddenly stopped talking, and both looked up at a window on the third floor of the castle. Apple cider vinegar stood at the window and shook his hand at Ye Fei: "Brother Zanggong, you're back." ”

Ye Fei nodded and said, "Yes, I brought two engineering mentors over, and they want to build a war fortress floating in the sky. ”

Apple cider vinegar nodded: "Hmm, I heard that." That's a good idea, and besides, the castle isn't really a good place to be a war fortress. As he spoke, Apple Cider Vinegar glanced at the two mentors, who were almost bent at the waist, "Build the strongest war fortress possible, and go to Askar Firehammer, who is stronger than both of you in this regard." ”

"Yes, Your Excellency!"

Ye Fei looked at the attitude of these two mentors towards apple cider vinegar, although they were used to it, there was still an indescribable weirdness, as if they respected apple cider vinegar more than themselves.

Apple cider vinegar smiled and said, "By the way, Brother Zanggong, you can give them the permission to enter Tieyuan Castle, that war fortress is not suitable for building in China City, so let them build here." Perhaps, I can also make some comments. ”

"Okay, listen to you." Ye Fei smiled and said, "By the way, why haven't I seen you go to China City recently?" It's been a long time, and your cousin has been talking to you several times. ”

"Well, I'll go when I'm done here. Did Brother Zanggong miss me? ”

"Of course I do!"

"Hehe, I'm happiest to have your words, okay, I'm going to get busy, goodbye Brother Zanggong!" Apple cider vinegar waved at Ye Fei and closed the window. Ye Fei didn't see it, behind the window, the apple cider vinegar smile gradually disappeared, and her body gradually became transparent, she was muttering to herself: "It's so fast, time is getting faster and faster, but...... For the future, now...... It's still worth it. Brother Tibetan Bow...... Hee-hee, wait for me! ”

Crash!

The apple cider vinegar's body dissipated completely, leaving only her laughter still gently echoing.

Ye Fei returned to China City with two engineering mentors who were a little difficult to walk, and after they returned, the two returned to normal. They saluted Ye Feifei, and their attitude was many times better than before: "Lord of the city, let's go and find manpower, well, as the lord said, Askar Fire Hammer has more experience than us in building cities, and has a specialization in the arts, and there are many people who are a hundred times better than us in other aspects, so we need to gather everyone to conduct a discussion about the war fortress first, and we must first determine all the details before starting to build the war fortress." ”

Old Hansen licked his lips: "I can't wait." ”

"I'm glad you have this kind of power, but before you get there, can you make a super power furnace for me now?" Ye Fei smiled slightly, "I hope that before the War Fortress is built, this super power furnace can be temporarily placed in that Secret Law Tower, so that I will have more confidence in the battle in three days." ”

"Three days!" Lauren and Old Hansen groaned for a moment and said, "Then let's do our best." ”

As he spoke, Old Hansen looked at Lauren: "Old man, it seems that we are going to take out all our family resources." ”

"That's how it should be!" Lauren nodded, and then officially said goodbye to Ye Fei.

Ye Fei watched them leave, and smiled slightly, a super power furnace, will such a thing surprise everyone? I'm really looking forward to that statue showing his power!