Ye Fei chose to share the attributes of the book in his hand, so that others could see the content of the book: "Essentials of Engineering Research: How to disassemble and study a finished product of engineering, so that you have a certain chance of getting a formula similar to it or identical." Engineering Masters Needed! ”

"I'll you!"

Everyone exclaimed, this ...... Is this a wish-fulfillment?

Hongluan and the others looked at Atasha in surprise, this guy has made a lot of money.

Ye Fei asked, "Do you think the effect of this book is also useful for this machine?" ”

Atasha shook his head: "How would I know?" Come on, I'm not an engineering player, otherwise I'd use this thing myself, but you should give it to you just right, you can try it, if you can successfully learn the recipe of this Eternal Power Furnace, it would be fine. ”

"Heh, if you learn it, I'll make one for you for free, and I'll get the materials." Ye Fei said with a smile, he knew that he had made a lot of money this time, even if he couldn't learn the recipe of the Eternal Power Furnace, but he could learn a lot of things, for example, the Demon Crystal Cannon, which could only be purchased from the armory in limited quantities when the guild city became the main city.

But what if he learned?

Not to mention the needs of your guild city, even if you sell it, it will definitely be worth a lot! Therefore, this book, which was useless to Atasha, was priceless to Ye Fei.

Ye Fei slapped the book, this book representing the essence of top research in engineering turned into an orange-gold and drilled into his body, he raised his head and grinned at everyone: "I feel good, it seems to be smarter again." ”

"Die, bastard, let's see if this thing can be studied."

Everyone is curious, wrapped in the snow and night, yes, their identity determines that they have countless experiences, but a city that can fly, they have not seen it, not even imagined, even if it is a game, everything is possible, but such a real game, they are happy to take this as reality. What happens when a city flies? It's simply unthinkable.

They were all excited, and they gathered around Ye Fei and this eternal power furnace,

Ye Fei took a deep breath, put his hands on the Eternal Power Furnace, and sighed softly: "Dismantle!" ”

This book doesn't mean that you have to manually disassemble the entire machine, this kind of thing can only be done by those mechanical geeks, and for ordinary people, this kind of thing is too professional. Therefore, dismantling this skill is a magic skill, when Ye Fei put his hands on the Eternal Power Furnace, the entire furnace naturally decomposed, floating in a large area in front of him, decomposing into countless parts, and a voice sounded in his ears: "Please concentrate on observing these parts, all the parts combined will form a new recipe." Keep in mind their order, and when regrouping, you need to combine them in order, otherwise, the combination will fail. ”

"No problem!"

Ye Fei took a deep breath and tried to observe each structure, and every time he figured out the structure of a part, the manufacturing formula of this part was added to the original formula. The entire Eternal Power Furnace adds up to a total of more than 200 parts, each part has a different degree of complexity, some Ye Fei originally would, so it can be manufactured without comprehension, and some are composed of many smaller parts, it takes a lot of time to comprehend, and these times are also set by the system, as long as the player can concentrate all the time, this comprehension can continue.

Hongluan and the others could only see that the Eternal Power Furnace had been disassembled, but they couldn't see that Ye Fei was studying one item at a time, they just looked at Ye Fei with worry and hope: "I don't know if Xiao Fei can get the formula for this thing." ”

"Now I'm not worried about the recipe, I'm starting to worry about whether this thing can be reassembled."

Five minutes passed, Ye Fei sat motionless, his eyes were firmly fixed ahead, in his sight, there was nothing else except parts, and the other people around him had been automatically ignored.

Ten minutes, with Ye Fei's mental power, this kind of mental concentration is not a difficult thing, but so far he has only studied less than one-third of the parts, and they are all the easiest one-third.

Half an hour later, Hongluan and the others were a little impatient, and they were already a little worried when they looked at the cold sweat that broke out slightly on the top of Ye Fei's head.

An hour later, Ye Fei's eyes moved, and he suddenly let out a long breath, only to see the parts that had been scattered gathered together one by one, re-completing the patchwork of the Eternal Power Furnace.

"OK, done." After more than ten minutes, Ye Fei breathed a long sigh of relief and said, "It's a pity that I didn't need to get the complete formula, I only got the formula of an orange-gold quality super power furnace." ”

As he spoke, Ye Fei sent out the formula, the orange-gold name was dazzling and dazzling, and the series of parts also made people feel dazzled, one or two hundred parts, this is probably the most complex engineering formula ever, right? How long does it take to make such a thing?

Everyone is thinking so in their hearts, no wonder there are master-level sub-professions now, but the output of those epic equipment is very limited, and the feeling is not that those masters don't want to build, but that the time and energy required to create such a piece of equipment is too torturous.

The Furnace of Super Power, as they had known before, was something that could provide a steady stream of power. Explaining that's all there is to it, Hongluan muttered: "So it seems that this east and west must be to let the city fly into the air, right?" ”

"The power of this thing is certainly not as large as that of the Eternal Power Furnace, so it is unrealistic to want a city to fly into the sky. But," Ye Fei pursed the corners of his mouth, glanced at everyone, and said, "If we improve the magic crystal cannon and change the magic crystal used in the original magic crystal cannon to this thing, what do you think will be the result?" ”

Crystal Cannon?

Everyone was stunned, and Po Jun was puzzled: "This thing is not small, if it is placed on the magic crystal cannon, it will cause the magic crystal cannon to be too large and not conducive to transportation, of course, if it is only used to defend the city, it is not bad." But if it's just for defending the city, it's better to put it on the magic tower to power the magic tower. ”

"This can be had!" Ye Fei nodded, behind their guild hall, the problem of the energy source of the huge magic tower has not been solved, until now, the magic tower is still just a decoration, if the super power furnace can be placed in that place, this problem can be solved.

The super power furnace is the core that provides energy, it is the heart, it is the engine, and it needs other things to cooperate to play its due effect.

Ye Fei was already very satisfied, a legendary quality formula, and a formula that could make strategic weapons, just this formula, the price they had paid before was worth it.

The reassembly of the Eternal Power Furnace is very simple, as long as you remember the order, the system will automatically complete all this, for Ye Fei, he still has this memory, and the system does not say that you want one or two hundred parts to remember the same, according to the order, as long as the accuracy rate of more than 80% is enough.

When the furnace was in hand, everyone searched carefully around the neighborhood again, found some broken parts, put them away in one go, and then began the return journey.

However, shortly after leaving the pit, he encountered a group of half-dragons.

As soon as the five half-dragon people saw Ye Fei and them, they immediately pounced: "Look, it's that group of adventurers, brothers, go up and kill them and snatch down the Eternal Power Furnace." ”

The Eternal Power Crucible?

When Ye Fei and the others heard this, their hearts were all tight, what was going on, how could this news leak out? Except for Egner, only they and those mammoths knew the news, could it be that those mammoths leaked the news?

Po Jun cursed fiercely, "I knew that those animal-like things were unreliable. ”

"Not necessarily!" Ye Fei took a deep breath and led everyone to kill him, and in more than two minutes, the battle ended, and the five half-dragon people were all killed.

But less than three minutes after they walked out, another wave of half-dragons rushed over, rushed, killed, and continued to move forward, and a few minutes later, another wave of half-dragons followed.

Everyone sensed that something was wrong, the number of these half-dragons increased, the third wave began, and even an elite appeared inside, and this elite also shouted: "Rush up and kill them, we can't let these damn adventurers return to Cloud City, as long as it takes a while, Cloud City will be breached, and the fragments of the Staff of Eternity will fall into our hands." ”

"Oh no, the news of the fragments leaked out." Several people took a deep breath, and Ye Fei shouted in a deep voice: "Rush over as fast as possible, we have to return as soon as possible, in case Cloud City is really breached, the consequences will be unimaginable." ”

Everyone was solemn, if Cloud City was really gone, needless to say, this secret journey would almost come to an end.

Ye Fei and Atasha no longer had reservations, and launched their strongest attack power to kill, especially those half-dragon elites, Ye Fei basically used them after the cooldown time of the sacrificial blow was over, killing them as quickly as possible.

His luck was also good, he killed a half-dragon elite, and also let him extract the soul of this half-dragon elite, not only did his own attributes skyrocket, but this half-dragon elite was also controlled by him, and his own power increased a lot.

Po Jun and Tianji were sent back by Ye Fei first to understand the situation, with Tianji here, even if the two of them couldn't kill those half-dragon people, at least there was no problem with self-preservation, and they didn't need to collide head-on with them and rely on their mounts and movements. This is not a copy either, these half-dragons will not chase after anyone, and at a distance, they will be out of the fight.

One hour later, when the large group returned to the air vortex, they saw countless half-dragons fighting those air vortices, with casualties on both sides, and countless corpses on the ground.

The two air vortex saw Ye Fei and them returning, and hurriedly shouted: "Adventurers, hurry up and go to Cloud City, they have attacked Cloud City, we can't stop it, we must not let them take away the fragments of the Staff of Eternity." ”

When Ye Fei heard this, he jumped into the whirlpool without the slightest hesitation, and when they appeared in the Cloud City, they were also shocked by the scene in front of them, countless half-dragons had invaded here, and almost the entire city had their figures, and outside the palace where Aigner was, there were several giant dragons flying in the sky, fighting with some elites of the Sky Wind Elemental Elves below.

As for Egner, she was fighting a giant dragon leader, and she had already manifested her main body, a huge cyclone nearly ten meters high, her body was constantly writhing, and air bursts were released, which could block the dragon leader's attack.

Broken Jun and Tianji followed Agner, Broken Army assisted Aigner in attacking the dragon leader, and Tianji restored what a light arcane mage should do, hiding in the rear to heal.

Although the amount of healing of the Heavenly Machine is very limited for a world boss, if he continues to heal, he can finally slow down the decline of Aigner's blood line a little.

Ye Fei entered the palace and shouted, "Agner, what is going on here, how can the dragons attack you, and also, your reinforcements?" ”

"The water elemental elves, they betrayed us, they, they threw themselves into the arms of the fallen legions, and they told the whereabouts of the fragments of the Staff of Eternity."

"Damn it!" Ye Fei scolded angrily, the worst result finally happened, the water elemental elves threw themselves into the Fallen Legion, which would definitely have a certain impact on their journey to the secret realm. He took a deep breath, and killed the dragon leader with a sacrifice of his life, and the super high damage of nearly 100,000 made the dragon commander cry out in pain, and then, the opponent's thick tail flung over, but Ye Fei had already retreated after a blow, and when the opponent's dragon tail swept over, he had already flashed to the side to attack those ordinary half-dragon people.

Everyone else has found their own opponents.

"What should we do now, Chief Aigner!" Ye Fei shouted loudly, could it be that it is up to them to deal with this dragon leader? That's not realistic, isn't it?

It is absolutely impossible for a team to slay a dragon, not to mention that there are so many dragons here!

"Eternal Power Crucible, have you found it?"

"Found it, there's still a lot of magic crystals, but the Eternal Power Forge is already somewhat damaged."

"It doesn't matter!" Aigner suddenly chanted a spell in a loud voice, and a vortex of air was used from the surrounding void, and air was everywhere, as long as it did not go deep into the soil or the sea, there was air, and these air elements gathered around the dragon leader's body, and then formed an air cage in the crazy roar of the other party and trapped him in it.

Aigner turned into a human form again and said to Ye Fei: "I can only trap him for ten minutes, quickly hand over the Eternal Power Furnace to me, I have a way to repair him." ”

"Okay." Ye Fei hurriedly handed over the Eternal Power Furnace and the Magic Energy Crystal, and then followed Aigner to the ground, all the way to the place where they had seen the fragments of the Staff of Eternity before.

I saw a dark blue light in Egner's hands, and the original damaged place of the Eternal Power Furnace was slowly repaired, this magical spell made people wonder, is this still a master engineer? No, there is no way a master can do this, she must be an expert.

Of course, this is just Ye Fei's irresponsible speculation.

After repairing the Eternal Power Furnace, pieces of magic energy crystals continued to fill the Eternal Power Furnace, and the silver-white furnace gradually released a light blue light, which gradually turned into a dark blue as the magic energy crystal was filled, and these lights came through the cracks in the furnace, rendering the silver-white furnace more gorgeous.

"Start, it must be a successful start." Aigner muttered to himself, his expression growing nervous.

Finally, when there was a 'click' from inside the furnace, countless dark blue rays of light shone out, almost merging with the light emitted by the fragments of the Staff of Eternity, but suddenly, these blue rays suddenly shrank back, remaining only for one week of the furnace's body, tightly fused with its own silver light

Aigner exclaimed excitedly: "It's a success!" Adventurer, we have succeeded, the Eternal Power Forge has succeeded, we just need to install him here, and the Eternal Staff fragment can be taken out, you wait a minute, this step will be good right away. ”

Ye Fei nodded: "Then, we can use the Staff of Eternity to kill the dragon commander outside?" ”

"Yes, but you are not strong enough to control the Staff of Eternity, and after I drive these abominable dragons out of Cloud City, I will give you this fragment and tell you the whereabouts of the second fragment."

"The second piece!" Ye Fei nodded, stood aside and looked at Agner quietly, ten minutes were about to pass, if that dragon commander got out of trouble, with the strength of the guys above, he would definitely not be able to stop it, perhaps, he could only let Kunlai's soul fragments come out to help.

Fortunately, Aigner's movements were very fast, and she controlled the Eternal Power Forge to float above the fragments of the Eternal Staff, and a strange arcane circle formed around the Eternal Power Furnace. Aigner explained: "This is the Floating Arc that can float anything, this Arcane Circle has always existed here, it used to use the fragments of the Staff of Eternity as the core of energy, and now, it should be used as the core of energy with this Eternal Power Furnace, with energy, the arc can work." ”

The moment the Eternal Power Forge and the Arcane Circle merged, countless winds began to emanate from the Arcane Circle, and these massive wind elements were even larger than those emitted when the Eternal Staff Fragment served as the energy core.

These winds held up the entire city, and in Ye Fei's surprised gaze, the city began to rise gradually.

"This ...... Now, the city isn't going to fly into the sky again, is it? ”

"Of course!" Aigner raised his head, and there was a hint of arrogance in his eyes, "The city of clouds naturally has to fly over the clouds, which is worthy of this name." ”

Boom, the whole city let out a tremor, and then flew gently and slowly towards the sky, Ye Fei could faintly hear a loud sound from the sky.

At this time, Aigner had already stretched out a hand, and the fragment of the Staff of Eternity flew lightly into her hand, and all the smaller fragments that had been shattered from the fragments of the Staff of Eternity were all gathered together, so that the fragment could be considered complete.

Aigner gritted his teeth and gritted his teeth as he gritted his teeth and said, "Let's go, it's time for those hateful dragons to pay their price." ”