Five minutes is enough time for Zhang Xiaohu and his team to reach the laboratory, and their aircraft can reach supersonic speed (340 meters per second) with full energy output. They had already flown more than 30 kilometers before, and the remaining dozens of kilometers could be completed in 3 or 4 minutes.

However, this kind of supersonic flight can only be used once for aircraft, because the manufacturing materials of these aircraft are some ordinary metals randomly collected by Y87564 in Tianzhu Mountain, which cannot withstand the overload of high-temperature jets at all. After flying at supersonic speed, the aircraft will be unusable, so Zhang Xiaohu and the others are completely desperate, and victory or defeat is up to them.

The equipment worn by Zhang Xiaohu and the others can withstand the interference of the turbulence in the living space, and they are naturally not afraid of supersonic flight, but Zhang Xiaohu and the others under the equipment are just ordinary people with mortal bodies. Propelled by the huge Mach speed, several people fell into a brief state of unconsciousness, but fortunately recovered quickly.

In the distance, a large mechanical fortress appeared, heavily guarded, and according to its location, it should be the laboratory where No. 3 was hiding.

No. 3 should have deduced a long time ago that Y87564 would definitely send someone to arrest him, so he built a watertight place to hide himself.

The entire experimental center has a total of three layers of protection, the outermost layer is a huge artillery battery built on the ground, the black and huge cannon muzzle is facing Zhang Xiaohu and others who are flying, and the huge speed of light cuts through the sky, ready to hit Zhang Xiaohu and others.

Zhang Xiaohu and the others have made all the preparations, of course they will not be slaughtered like this, on their protective clothing, they quickly and automatically opened a silver-white light shield, defusing all the attacks, and the speed was not affected at all. This is a feature that Y87564 has designed for them, and in their protective suits, a muon shield is installed, which is equipped with twenty meson balls, which is enough for them to withstand twenty attacks. However, because there is really no extra space for the protective suit to store the meson balls, these 20 meson balls are scattered in various locations, and there is no special replacement equipment. Therefore, once these twenty meson balls are used up, they cannot replace them on their own, and they can only use this function as little as possible.

Originally, they just planned to rely on the "meson metal" body protector to defuse all the attacks, but these photon cannons were menacing, even if they had the "meson metal" body, they didn't have to worry about being injured, but they would be blocked by the photon cannons, so they wouldn't be able to reach the laboratory within five minutes.

They fended off a total of five rounds of photon cannon attacks, and then quickly rushed through the photon turrets on the ground.

They were greeted next by a neat array of human-height mechanical warriors, whose bodies were covered with a layer of soft rubber, which could effectively prevent all kinds of signal jammers, and behind each mechanical warrior was a device that could fire iron chains, which, once opened at the same time, would restrain all objects that tried to pass by like spider webs.

Even more striking are the weapons held by these mechanical warriors, who do not use missiles and photon cannons, but instead wield the most retro and at the same time sharpest sword-type weapons. These weapons seem simple, but they are obviously aimed at Zhang Xiaohu and others, once they get into a fight with these mechanical warriors, Zhang Xiaohu and they are well-equipped, but they still can't escape the end of being killed.

Because these mechanical warriors were covered with soft rubber, the jammers of Zhang Xiaohu and the others could not be used, but Zhang Xiaohu and the others immediately used the energy weapons they carried to destroy all the mechanical warriors in front of them.

They don't want to destroy much, they just want to be able to pass through here quickly.

But even so, they were still here for a full two minutes.

At this point, only the huge laboratory was left in front of them, and behind them were a huge number of pursuers.

"Lao Zhang, a few of you go in, Master Wang and I are here in the palace, after you succeed, you only need to send a signal according to the plan, and Master Wang and I will activate the button for space teleportation." As Zhao Zixuan spoke, he controlled his flying machine and stopped in mid-air, the weapons he was carrying were fully opened, destroying more than a dozen mechanical warriors who rushed over.

Master Wang also quickly reversed the law phase and helped Zhao Zixuan cover Zhang Xiaohu and the others to continue to move forward.

"Be careful!" Zhang Xiaohu asked, and then he hurriedly took King Peter and the others to continue to hurry at full speed.

They slowly landed on the roof of the laboratory, and then used their weapons to open an opening, through which several people entered the interior of the laboratory.

The interior of this laboratory is like a labyrinth, full of iron-gray walls, which are still changing, and if you are not careful, you will not know where you are, and the four of you must not be too far away from each other, otherwise once the surrounding walls change, several people will be separated, in that case, it will be very troublesome for them to go deep into the enemy's lair.

It seems that this experimental center was designed for Zhang Xiaohu and others, and it is designed everywhere to cause trouble.

However, the surrounding walls will change, and even the lighting inside is constantly changing, sometimes red, sometimes white, sometimes black, and the eyes of several people have a certain degree of visual hallucinations under the constant change of light, and the eyes are all light spots of various colors, which is because the optic nerve is strongly stimulated by various lights.

Zhang Xiaohu walked on the smooth ground, the surrounding walls were slowly changing, the original location of the corridor became a wall the next moment; What was originally a wall has been transformed into a wide corridor.

They were completely lost in it, and a few of them didn't dare to move around at will anymore, they calmed down and observed the laws of change around them, as if these walls and lights had a certain combination of laws.

"Boy Zhang, look!" King Peter said: "When the light becomes a light hue, there must be some change on the left side of our body, most of them the walls change suddenly, either disappear or increase; And when the darker light appears, on our right, there will also be a cloister that changes! ”

Zhang Xiaohu listened to King Peter's introduction and paid attention to the connection, and sure enough, as King Peter discovered, that is to say, the changing scenes and lights around them are actually related, and after knowing this, they can deduce their own direction according to the changes in the lights.

These labyrinth-like designs are delaying the time of Zhang Xiaohu and others.

As they discovered, they kept trying to move to the left, and although there were some troubles along the way, they did not encounter any danger.

Just when Zhang Xiaohu was secretly rejoicing, a wall on his left suddenly disappeared, and more than a dozen mechanical warriors rushed out from behind, four mechanical warriors swarmed up, and Zhang Xiaohu was thrown to the ground at once, and two other mechanical warriors with long swords waved their long swords without hesitation, ready to cut off Zhang Xiaohu's head.

Zhang Xiaohu immediately pulled the weapon in his hand and broke the heads of the two mechanical warriors, and his companions immediately rushed up and wiped out all the dozen or so mechanical warriors.

This is a dangerous sign that in this labyrinthine place, the enemy can attack them by surprise, so they must be always on the lookout and on the lookout.

In order to be on the safe side, Zhang Xiaohu and the others used "meson metal" in advance, and only by protecting themselves could they complete their tasks.

"Don't go any further!" From a nearby wall, the mechanical voice of Number 3 was heard.

"We're here to find you, so there's no reason to give up now!" Zhang Xiaohu said to the void. He believed that Number 3 would be able to hear him.

"Don't you hate the world of Twin Stacks? I let it be destroyed, and it will have no effect on you, why are you targeting me everywhere! Number 3's voice sounded angry. However, the emotions expressed by this mechanical electronic sound are also incomplete.

"We don't want to worry about your affairs, originally we were traveling through various spaces, looking for our own world, and we were going to succeed if we didn't come, but you messed up the space of the double world, and we were also affected, and now we are here to arrest you, also for ourselves!" Zhang Xiaohu explained.

"You ...... I heard the 22nd say about you, you are all caring people, why can't you just let me go? Number 3 wailed, as if he hadn't been able to solve his problem of always being in pain.

"We can let you go, but you have to get the machine you stole back!" Zhang Xiaohu hesitated and said.

"I didn't steal any machines, I didn't, I just blew up the space builder of the Twin Worlds, and then I got out of there, and when I got to this world, I just wanted to survive here, I didn't have any other ideas!"

"What a desperate one, for your own wishes, you actually wiped out all the creatures that lived here! You can't deny this, right? Zhang Xiaohu said angrily.

"The space of this world is completely complete and cannot absorb the creatures of the connected world, so before I arrived here, there was not a single creature here, so how could I destroy it! If there were other creatures here, after so many years, there must have been quite a civilization system, how could I build all this so quickly, and time would not allow it! Number 3 was still pleading.

"You denied everything, as you said, as if we were wrong to blame you, but you really made a lot of arrangements in advance in this world, as if they were aimed at us?" Zhang Xiaohu wondered.

"I'm not targeting you people, I know that my master will not let me go, he will definitely find the right person to come here to arrest me, I really didn't expect it to be you!"