The sky city that has restored its mobility is like a super heavy fortress with two forms in a sense. One is the light-packed mobile type, and the other is the heavy-packed fortress type. The former allows Sky City to go wherever it wants to go, but the latter is still its strongest state. When the anchor of the deep sea descended from the sea of source energy, Sky City resumed its endless source energy mode. At that moment, the entire city was shining in the night sky. The Yiyang Orbs on the ninety-nine arcane towers flashed at the same time, the pressure on the arcanists was greatly reduced, and the firepower of Sky City doubled. The defensive cover that had been lowered to the bottom line suddenly strengthened, not to mention the various source energy cannons powered by source energy, and source array killing methods appeared one after another. A large thundercloud suddenly appeared in the sky, and the thunder and lightning intertwined in the air, stretching for hundreds of miles, just like this, shining in the air, accumulating, and accumulating the terrifying power of the world. This is the heavenly thunder formation. It's not unusual in terms of formation, but the Tianshang Thunder formation that stretches for hundreds of miles and spans most of the battlefield is much rarer. The power of this formation is fixed, but the more energy it supplies, the wider the range, which is the best way to deal with the human sea tactics. It was useless to the Toad of Ten Thousand Toads because it was an individual goal and it was a waste of energy to deal with it. Now facing these tens of millions of monster races, the Heavenly Devil's Thunder Array can play a role. The thundercloud stretching for hundreds of miles enveloped most of the battlefield. Although the demons below kept calling to the air and issuing various interceptions, they still could not stop its formation. After that, the brilliance of thunder and lightning fell like rain. The power of these thunder and lightning is average, and the damage to the lord and above is limited, but the densely dense cannon fodder has a good effect on a large number of bottom cannon fodder. The stretch of hundreds of miles makes its lethality terrifying to the point of unimaginable. Although the combat effectiveness of cannon fodder is average, it is also effective to consume opponents. Naturally, it is impossible for the monster clan to let them be completely destroyed in a single blow. At the same time as the thunderbolt wave was falling, the four radiances had appeared at the same time. Hundreds of demon emperors from the demon clan followed behind, attacking the sky one after another. Huge air waves exploded one after another, impacting the thunderclouds, forming a turbulent flow of source energy, disturbing the gathering of source energy. This is the easiest way to destroy the source array, brute force. Faced with this situation, the Tianshan Thunder Array is destined to not support it for too long, but it does not need to support it for too long, it only needs to complete the maximum killing before it breaks. The electric wave was raging, and one after another monster race turned into coke under the impact of thunder and lightning. This scene fell in Le Feng's eyes, and even his eyelids jumped wildly. If the Promise Sect is here, what shall happen to such a thundercloud? At this time, the demon emperors took action, and the heavenly thundercloud had been shattered, but in the next moment, a new fire cloud had condensed in the sky. It is still a large-area source array attack. Le Feng once heard that there are hundreds of large and super large source arrays deployed in Sky City, and a considerable part of them are forbidden spells. The Tiananlei just now was a super forbidden curse, and the burning cloud in front of him was obviously another. Relying on its own endless source of energy and the advantages of large fortresses, Sky City began to show off its power, truly showing the style of the world's most fortified city. There was a rain of fire in the sky again, and the meteorite that was burning on fire fell like a meteor. With the terrifying horror of the world, the demon emperors and demon emperors had to attack again to break the fire cloud. "Roar!" In the violent roar, a giant man appeared on the stage, a hundred feet tall, supporting the sky and the earth, holding a golden sledgehammer, and hitting the red clouds in the sky. This is the Demon Emperor of Stone Man, known for its huge power among the Demon Emperor. He has the incarnation of a talented giant. In the form of a giant, his power is invincible. The stone barbarian demon emperor's stone hammer broke through the sky, and forced the burning cloud into a huge hole. But the next moment, a lightning giant in the sky was born out of thin air. The lightning giant held the Lightning Spear and threw the Light Spear at the Demon Emperor Shiman. The light spear pierced Shiman's body and exploded it into pieces along the river. At the same time when the Thunder Giant succeeded, two giant beasts appeared behind it, a golden flame giant lion, and a cracked ink pattern beast. At the same time, they claws to destroy the lightning giant. Immediately afterwards, a wind dragon suddenly acted and rolled towards the two beasts, but the next moment, four demon emperors flew out to face the sky. The two sides fought together in this way, the invincible defense of Sky City and the continuous beast tide of the monster race confronted each other, in exchange for a large number of casualties. At this moment, even the Demon Sovereign seemed worthless. There was no way to see the victory or defeat in this war in a short period of time, and Le Feng withdrew his attention from the battlefield again and returned to the smoke-filled area. Judging from the roar of the anchor chain, it took about a quarter of an hour before and after Sky City started to anchor. But Le Feng was very suspicious that Sky City deliberately used this time to confuse them. After all, anchoring the sea of source energy is not a simple matter. Back then, Sky City was to unlock the anchor of the deep sea, and it took a year or two. Of course, this has something to do with their requirement to keep the deep-sea anchor as intact as possible and be able to use it again. But under this circumstance, the anchoring of the deep-sea anchor is definitely a big event, and it doesn't make sense to complete it in a quarter of an hour. But judging from their previous performance, it is indeed the case. Le Feng was puzzled in his heart, and his expression remained calm, just wandering around the Yongzhou Palace slowly. The two Feather soldiers looked at him nervously, lest he leaned too close to see something. It's a pity that even if Lefeng had a purple-lighted third eye, it would be difficult to find out the truth just looking at it from the outside, which made Lefeng secretly anxious. At this moment, a large vehicle passed by Lefeng and headed towards Yongzhou Palace. This kind of car Lefeng has been seen before, and since the movement of Sky City, this kind of car has been continuously entering the Yongzhou Palace. To say that it has nothing to do with the anchor of the deep sea, Le Feng absolutely does not believe it. How can we understand the situation? Seeing the cart getting closer and closer, Le Feng decided to give it a try. As the cart approached, he took a step forward. This step was an extremely coincidental step. The car was blocked on the way forward. The car couldn't dodge, and hit Lefeng at once. People and cars collided with each other, but it was the car that was unlucky. The cart fell down at the time, the box broke open, and a large number of source rocks were dumped out of it. Source stone? Le Feng was shocked. The source stone is used as a basic energy supply item, why does the everlasting palace of unlimited source energy need it? Countless possibilities flashed in Le Feng's mind. The two Yuzu soldiers here already yelled at the driving Yuzu: "Be careful! Don't look at some roads." "Forget it, he didn't mean it ." "Le Feng smiled comfortingly. Saying that he has taken the initiative to help that Che Yu clan pick up the source stone on the ground. Because the source stone is not a rare thing, the two Yu clan guarding them didn't even care. The most important thing is that, as Lefeng monitors, in order to avoid leaking secrets, they themselves don't know all important matters, especially things like the Deep Sea Anchor, so they don't even know it. Not knowing the secrets will eliminate the possibility of leaks, but conversely, when the real secrets appear, they will not be aware of it. For example, it is now. Some ordinary source stones did not seem worthy of attention in the eyes of the two Yu clan soldiers, but because they were sent to Yongzhou Palace, they made Le Feng suspicious. If you are prepared or unprepared, you really can't prevent many things. At this moment, Lefeng took the initiative to help the soldiers tidy up the cart and put a piece of source stone back into the box. The soldiers driving the car also didn't know the importance. After thanking them actively, they drove away again, and soon entered the Yongzhou Palace. Seeing the soldier's leaving back, Le Feng smiled, first uttered a string of strange words in his mouth, and then took out the communication box and said a few more words. These words did not hide these words from the two guarding soldiers. They did not understand them anyway, and they were not surprised. After all, Le Feng had contacted Wujizong several times in front of them. So they would never think of what it means behind this time. After the car escorting the source stone entered the Yongzhou Palace, it turned seven or eight turns and finally came to a warehouse and parked there, waiting to be used. Placed in the warehouse with the carts are countless carts that are also full of source stones. From time to time, Feather soldiers entered, opened the cart, and poured out the source stone in the box. These source stones were dumped in the center of a huge source array. With the brilliance of the source array, the newly laid source stones turned into powder, and then another pile of source stones was sent. Extending all the way along the trajectory of the source array, after passing through the long walkway, it will come to a wide area. There stood a huge boiler-like machine, burning with raging flames, emitting a huge roar, and providing amazing power. This is the Sack Energy Nuclear, the core power source of the entire Sky City. The source energy obtained by the source array transforming the source stone is transported here. This is undoubtedly the most interesting part, the Sark energy nucleus, which can obtain endless energy from the sea of source energy, actually needs the assistance of the source stone. If Le Feng saw this scene, he would suddenly realize it. This is the truth that the anchor of the deep sea can be anchored in a quarter of an hour. The power core of Sky City is always the busiest and noisiest place, full of heat everywhere. When there was a mess outside, the energy supply inside Sky City reached its limit. "Hurry up, hurry up! Another source array has been destroyed, increase the energy supply, and prepare to switch the shaking light and extinguishing shadow array!" The tube head's violent cry echoed in the huge room. "Increase, increase, what to increase? The deep sea anchor has just reached the edge, and the width of the anchor chain has not even reached 5%!" A craftsman responded in an angry voice: "Now it is all based on the source stone. . propped " " then increase the supply of source rock, war front is tight, who delayed whoever dead! " a Yu family ran shouting:" Come on increasing supply source rock!! " flapping in the wind, a few The source stone of the cart was dumped directly. No one noticed that the source stone of one of the vehicles was inexplicably stained with blood, shining brightly under the fire light.