Removing Liu Zhixin's consciousness that remains in the metal is also a very laborious thing, especially now that Xiao He, who is still very handy, he must achieve a complete mastery of every piece of metal.

So, Xiao He thought of the big star system again.

"Come on, my big star."

"If the host's tone is found to be provocative, the system will screen the host's next words."

"I've got a scrub, can you know something? Why can't I scold you, can't beat you, and can't praise you twice? ”

"Screening ......"

"I'll go, you're starting to pretend you don't understand, aren't you?"

"Screening ......"

Xiao He was speechless immediately, but this matter must be helped by this system.

So, Xiao He hesitated for a while, and then said to the system: "Please help me recommend a skill that can allow me to speed up the mastery of this ability to control metal, thank you." ”

"After screening, the system checks the ......"

In the past, it was all automatically popped up as soon as Xiao He finished speaking, but now there is an extra check.

"I'll go, I would have known I wouldn't talk nonsense."

After a while, the big star system said again.

"In view of the host's mastery of metals that are self-taught, we recommend an advanced version of metal control, large metal control, to the host."

After saying that, the exchange screen popped up again.

There is only one skill book on it, which is the so-called "Big Metal Control"

Seeing this book, Xiao He couldn't help but pout.

The heart says that metal control is metal control, and adding a big one is advanced?

However, Xiao He also got another message from the system's words, that is, the control of other elements can not only be self-taught through sand, but also through some messy skills.

"It's saved me experience."

Xiao He, who was very satisfied with himself, also unceremoniously exchanged 2000 experience points for the "Big Metal Control"

As Xiao He thought, using this skill is equivalent to spending experience to buy experience, that is, exchanging his experience points for skill experience points.

So this skill book, as soon as it was opened in Xiao He's mind, it turned into a puff of white smoke with a bang.

Xiao He didn't see anything at all, but he just felt that he was more proficient in mastering metal, and he could almost reach the level of controlling the sand by himself.

So, I saw Xiao He press on the console, and immediately saw a light like electricity spreading out to the surroundings in an instant.

At the same time, Liu Zhixin's residual consciousness was also completely wiped out by Xiao He.

But at this moment, the coordinates of Mountain City on the tracking display also disappeared.

Xiao He's eyes suddenly widened.

"I'm going? Play with me missing? You think you're Donglin City. ”

Xiao He, who didn't believe it, suddenly turned into yellow sand and flew outside the castle and flew into the air.

With the scale of Mountain City, it was impossible to hide it at all, but after Xiao He looked in the direction of the former Mountain City, he was surprised to find that the Mountain City had really disappeared.

"I wiped it, it was really gone, I thought I was the first master of playing missing, but I didn't expect that there were really people outside the mountain."

So, Xiao He returned to the control room of the castle, and immediately a chair dragged him back.

Xiao He held his cheeks in his hand, frowned, and looked at the display screens in front of him again.

"How can it be gone?"

"Master, could it be that Liu Zhixin used some kind of optical stealth technique, if that's the case, we just need to sweep it with sand to find his location, and the ruts in Mountain City are still there, let's find them along the ruts."

"The ruts have completely disappeared, and as for the sand, I tried it just now, but I didn't touch Mountain City."

"It's strange, a city of this size can't just disappear out of thin air."

At this time, Xiao He suddenly remembered something.

"It's not that he disappeared out of thin air, Liu Zhixin was prepared, he used those Doomsday Rangers and these mechanical pirates to drag me down, just to prepare for his disappearance."

"Counting that he is going to prepare at least one night, with Liu Zhixin's means, even if he opens a spatial portal, I believe it. Don't forget, Liu Zhixin is not only an awakened person, but also a scientist. ”

After listening to Xiao He's words, the fast knife Lao Qi was also blinded.

After thinking for a long time, he said with half hesitation: "Master, according to my understanding, the technology of this era does not seem to have developed to the point where it can be teleported in space, but there are awakeners who can teleport in space, unless it is to connect the awakened person who can teleport in space with Liu Zhixin's technology, maybe it can teleport the city, but this kind of spatial teleportation will definitely cause a huge burden on that awakener, unless it is a super awakener, otherwise, a teleportation may directly kill him, even if someone is willing to do it, Such a one-time transaction, Liu Zhixin will not do it. ”

His words gave Xiao He a dose of reassurance, but Xiao He still had doubts.

There is also a saying among humans that "a dog jumps over a wall in a hurry, and a rabbit bites in a hurry." ”

What if Liu Zhixin is really desperate?

At this time, it was Zheng Tianyi who came over and patted Xiao He.

"Don't think about it so much, let's go and see first, maybe there's some clue there."

"You're right."

Xiao He immediately picked up Xiao Zheng Tianyi, and then controlled the mechanical castle with one hand and continued to drive in the direction of the mountain city that once was.

Sure enough, the closer you got to the mountain town, the shallower the ruts on the road, as if the weight of the real mountain city was lightening and floating upwards.

Although this is impossible, thinking of what Mora said before, now that humans have built Sky City, Xiao He still can't help but turn the surveillance camera into the sky.

However, there is still no shadow of Mountain City.

Quick Dao Lao Qi frowned.

"Master, will they really fly into the sky, if we use optical invisibility in the sky, we can't find it with sand."

Xiao He then looked at the location where the rut of the mountain city had disappeared.

"All muzzle ready."

As soon as he spoke, the artillery-controlled cannons suddenly turned, and the shells loaded automatically.

Those cannon ports were all pointing in one direction, and that was the direction Xiao He was looking at.

"Put!"

With a bang, in addition to the main cannon, nearly a hundred cannons fired in unison, and even their castle couldn't help but retreat a little.

Xiao He watched the trajectory of those shells, watched them fly into the sky, and then watched them fall freely.

"Sure enough, it's not in the sky."

"Not in heaven? Where else can you go? ”

The fast knife is old Qi Fameng, and Xiao He is also Meng.

"It would be nice to be able to determine the location of the white smoke at this time."

Xiao He muttered while pursing his lips, this Liu Zhixin didn't know what means he used, and he actually cut off his connection with Bai Yan, Xiao He's hyperlinks were not easy to use.