After the more than 100 soldiers of the internal guard force were assembled, they ran towards the main evacuation road of the industrial zone under the leadership of the officer, if Qi Lin guessed correctly, these people should have been there to help maintain order Rumors that Vault 909 might be blown up are now spreading wildly among the residents of Vault, although there have been no serious clashes, but small-scale riots have not been interrupted.

It's okay on the industrial side, after all, there are a large number of armed soldiers staring at it, but no one knows how long this temporary calm situation will last.

The power of fear is terrifying, and at this time, if a few people jump out to take the lead in making trouble, the situation is likely to become out of control.

Seeing that the people in the Xuanwu shell were also aware of this problem, more than a hundred internal guards were dispatched.

However, for Qi Lin, this is good news, the guard strength in the Xuanwu shell will be reduced by one-fifth all of a sudden, and the density of the guards will definitely drop a lot, and the difficulty of sneaking in will become even lower.

Qi Lin put away his lenses, ran down the stairs full of waste to the first floor, pushed away a forklift behind the door, and ran out of the factory.

The basalt shell is made of opaque metal throughout, and apart from a few entrances and exits, there is not a single window, and those inside can only rely on the surveillance cameras installed on the outside of the basalt shell if they want to see the scene outside.

However, in the case of such a complex industrial area, there will always be blind spots in the surveillance camera, and Qi Lin used these blind spots to quickly approach the basalt shell from the blind spot of the camera.

There are four entrances and exits to the basalt shell, with two smaller entrances and exits for human access, and the other two larger ones are connected to the railcars to transport the fuel needed by the reactor and the waste generated by it.

Whether it is a small entrance or a large entrance, there are a large number of internal guard soldiers guarding, large-caliber heavy machine guns are directly mounted inside the entrances and exits, if there are unidentified people who want to force their way in, they will be torn to pieces by 50 caliber Browning machine gun shells in seconds.

As for the railcars used to transport fuel and waste, they have long been cut off from energy, not to mention trying to rush into the basalt shell through them, even if Qi Lin pushes with all his strength, these trains locked on the tracks will not move a bit.

However, if you want to enter the inside of the basalt shell, there is not only one way to enter through these four entrances and exits.

"Cooling Pipes".

According to legend, Xuanwu is composed of a giant tortoise and a giant python wrapped around the giant tortoise, and this giant heat dissipation pipe with a diameter of more than four meters is the "giant python" wrapped around the basalt shell.

In order to allow the pipe to be cooled quickly and not overheated, the heat dissipation pipe is actually divided into four separate channels by a thick cross-shaped partition, and the valve adjusts the coolant to pass through only two of the channels each time, switching every three minutes.

The extremely hot steam can peel off all the skin on the surface of the human body in just a second, and no one can move forward against the gushing steam, not even Qi Lin, who is a fifth-level evolutionary in the game.

The Shaped Vortex may be able to absorb the energy contained in the steam, but the speed of absorption is definitely not comparable to the speed at which the steam cooks Qi Lin.

But through the insulated partition, the other two passages without steam passing through, although the temperature must reach more than 100 degrees Celsius, is already within the tolerable range.

Qi Lin bypassed the four heavily guarded entrances and exits, and climbed along the metal frame on the outside of the basalt shell to the side of a section of heat dissipation pipe, on which there was a small door for technicians to use for maintenance.

The access door is controlled by a hydraulic valve, fortunately, the design of the basalt shell did not consider that there would be intruders to choose the "dead end" of the heat dissipation pipe, so the hydraulic valve of the access door did not use a high-end electronic lock, but an old-fashioned mechanical lock.

Qi Lin took out a thin wire, inserted it into the keyhole, and turned it gently, less than two minutes, with a soft "click" sound, a sound of gear turning came from behind the hydraulic valve, the round valve handle rotated counterclockwise, Qi Lin only needed to turn two more times, pull out to open the access door.

However, Qi Lin didn't rush to open the door, and there was a faint "boom" sound coming from the door, which was the sound of superheated steam passing through the pipe at high speed.

If Qi Lin opened this maintenance door now, the most likely thing would be that the steam that was directly sprayed out would be killed instantly.

He waited for more than thirty seconds, and the rumbling sound suddenly changed to a different position, that is, under the adjustment of the main valve, the high-temperature steam switched the heat dissipation channel once, and the next switch, it was three minutes later.

Qi Lin immediately opened the maintenance door, and a scorching heat wave immediately hit his face, this feeling couldn't help but remind him of the scene when he was in the 404 base, he drove the rudimentary power armor in the sea of fire.

The temperature of the inner wall of the pipe is frighteningly high, let alone knocking an egg, even if you throw a piece of pork belly on it, it can become an iron plate barbecue in minutes, fortunately, Qi Lin is wearing a pair of special operations boots this time, although the appearance is camouflaged like a pair of rags picked up from the garbage heap, but just for the sole of this boot, Qi Lin spent more than a thousand resource points.

The temperature of the inner wall of the pipe may be used to bake teppanyaki, but it can't melt the soles of these boots.

Qi Lin plunged headlong into the pipe and began to run quickly, he had to enter the inside of the Xuanwu shell within three minutes, and in addition, he had to find another access door located inside the Xuanwu shell.

The sole of the boot constantly taps against the inner wall of the metal pipe, making a thumping sound, but fortunately, thanks to the excellent thermal insulation performance of the pipe, the sound insulation effect is also quite good.

Especially when there is steam rumbling through the next passage like a running train.

Because it was close to the surface of the basalt shell, the heat dissipation pipe showed an arc-shaped bend, and according to what Qi Lin saw outside, he only needed to run down the pipe for less than two hundred meters before he could enter the inside of the basalt shell.

Two hundred meters is only a matter of ten seconds.

Due to the special design and structure, the temperature in the passage is dropping rapidly, although there are still fifty or sixty degrees, but a drop of water still begins to condense on the inner wall of the passage, dripping onto Qi Lin's body from time to time.

He has already run more than 500 meters, and it stands to reason that he should be in the position of the tenth of the Xuanwu shell, but until now, Qi Lin has not been able to find the second maintenance port 2k reading network