Li Wei was concentrating on retreat and alchemy, completely ignoring the outside world, Lan Feng thought of a way to lure Li Wei out, but in the next few days, he found that Li Wei couldn't hide, so that Lan Feng felt like facing the turtle in the turtle shell.

And on this day, when Levi was alchemy, the entire retreat room suddenly trembled, which made Levi be shocked, and at this moment, not only Levi, but also the entire Chongshan City was shocked by this movement.

Chongshan City has a strong formation defense, and under such a formation defense, there is basically no way to make Chongshan City shake, even if it is an earthquake, it is difficult.

And at this moment, many immortals have come out of the retreat, they are all very surprised by the vibration that occurred in Chongshan City, this is something that has not happened for I don't know how many years, some immortals who have lived in Chongshan City for I don't know how many years are thinking about who attacked Chongshan City, otherwise how could Chongshan City be shaken, under the protection of the formation, such a thing would not happen.

Rumble!!

There was another strong tremor, and at the same time as this tremor appeared, a black vortex appeared not far outside Chongshan City, and the appearance of this black vortex immediately made the city guards in Chongshan City discover it, and immediately conveyed the situation to the ears of the city lord.

"A black spatial crack appeared outside Chongshan City, is it the one that shook the great array of Chongshan City?" The Chongshan City Lord frowned slightly.

This situation is very impossible, the space here is very stable, it is basically impossible for such a situation to happen, and the occurrence of such a situation can only show one thing, that is, there is something powerful outside Chongshan City that forcibly opened the space and broke through.

At this moment, the city guards are all under martial law, and they are all Golden Immortal-level city guards are all looking at this black vortex cautiously, and no one knows what will run out of it in the next moment.

Airplanes!!!

A metal giant came out of the black vortex, and with the appearance of this metal giant, soon a huge silhouette appeared, it was a very huge ship type, if Levi looked at it here, then he could see that this was a very sci-fi space battleship.

"Did that guy hide in this world? So let's take over the world. Ultron sat down in the battleship and sneered.

This time, Ultron came to take revenge, was cheated by Levi, and had to quit the Marvel world, and after coming to the world of mechanical civilization, Ultron developed with several similar kinds, and developed the mechanical civilization to a very powerful level.

And Ultron has always wanted revenge, not only Ultron, Skynet also intervened, and at the same time, artificial intelligence villains such as Gully and the mother have appeared.

Under the cooperation of many villains and artificial intelligence, the mechanical civilization is highly developed, and it has invaded several planes by breaking the space for teleportation.

The space that Levi has traversed will leave some faint traces, and these faint traces allow artificial intelligence such as Ultron to have a certain search help in space technology, so that they can continue to find one space after another.

This time it invaded the plane space of the fairy world, and at this moment the mechanical civilization has developed to the situation of space warships, and as soon as the space battleship that Ultron was sitting on came out, various space warships appeared in the rear one after another.

The appearance of the space battleship alone was so large that many immortals were shocked, and the golden immortals of the city guards all felt that these metal spaceships were a very high threat.

"Attack!!"

The Captain of the City Guard, a Golden Immortal subverted City Guard, commanded his subordinates while attacking the spaceship.

One spell after another spells and fairy swords slashed the head of the spaceship into it for a while, which made Ultron stunned.

Ultron didn't expect that the natives of this realm were so powerful, and they actually shrank the head of its space battleship into it, which made Ultron's space battleship quite badly damaged, at least in many places it has lost its effect.

"Bastard, how dare you cause such damage to my battleship!!" Ultron was furious.

This is the first time that Ultron has been deflated after obtaining a very powerful mechanical civilization technology, and since the last time he was deflated in Levi's hands, Ultron has not eaten such a big deflated, because every time a large number of robots or flying machines invade, the natives are simply unable to resist much.

And when the space battleship was developed, it was replaced for several generations, and it never suffered from deflated, and every invasion was to kill the natives in a crushing way, and then plunder the resources of that plane.

This time, Ultron still came out of the space channel arrogantly, and as soon as he came out, he didn't think that he would be attacked, even if he was attacked, he could definitely prevent it with the defense power of the space battleship, but not only could the protective shield not stop it, but the head of the space battleship was shrunk in.

Captain Jin Xian's pupils shrank, the sturdiness of this space battleship was a little beyond his imagination, such a big magic weapon, how many immortal stones would have to be used to maintain it? He was very jealous before, but as the space battleship drove over so unscrupulously, he had to attack, and this attack also let him know that the defense of the space battleship was not very strong, although it was a great threat to their Jin Xian, but it could still be broken.

"Keep attacking!!" Captain Jin Xian yelled.

With a lot of cannons stretched out by the space battleship, Captain Jin Xian felt that the other party was about to attack, and this situation made him immediately command his subordinates to attack, not giving the other party a chance to attack.

Another round of spells and immortal swords blasted over, even if Ultron opened the protective shield from the new, it was still broken, and in front of an elite immortal city guard, such a defensive shield could not be stopped at all.

With a bang, the head of the space battleship shrank into a large section, which made Ultron jump like thunder.

At this moment, the other space warships also came out of the black vortex, and after Ultron was attacked, they naturally quickly counterattacked.

Many cannon muzzles fired a salvo, and countless energy cannons bombarded over for a while, but they were blocked by the protective formation of Chongshan City, and under the attack of the power of science and technology, the formation defense of the immortal cultivators also played an extraordinary effect, making it impossible for Ultron to capture it for a while.

However, Ultron couldn't detect the defense of this formation, but the captain of the golden immortal on the city wall knew what kind of attack the enemy's cannon had just played, and the formation had been greatly damaged.