After Mo Ran rested, she plunged headlong into the production of the ghost gate, and first she thought of the design that would automatically open and close the door when she entered the store in a modern way.

Secondly, she added an infrared scanning system, through the previous Linlong face recognition files, recorded the faces of the original residents of the underworld, and those who were not recorded belonged to strangers' visits, and they needed to be manually operated by the central computer USB flash drive to enter.

Currently, the only materials that can be used are Lethe River Stone and Sand Styx. These two materials are too precious, and the sand is too fragile to be used as a material for the construction of the Ghost Gate Pass alone.

"Linlong, didn't I get a lot of kinds of ores underground near Xiaoxin's house? Where do those coordinates correspond to here? ”

"Yes, you'll find it soon if you follow my navigation."

After digging out many different kinds of ore, Mo Ran smelted it little by little with ghost fire, and in the process of smelting, he accidentally obtained an alloy.

This alloy has high hardness, high density, and good defense.

Mo Ran was overjoyed, so she decided that this alloy was used in the construction of the Ghost Gate Pass.

Mo Ran cast a spell and used ghost fire to forge a gate six meters high and three meters wide in the southeast, northwest, and northwest of the town, and transformed it into a checkpoint into the city, that is, the Ghost Gate Pass.

On the top of the door of the level, three dustpan-sized metal characters were made of alloy - Ghost Gate.

There are two doors in the ghost gate, and in general, there is only a glass sensor door for the personnel inside to enter and exit.

Mo Ran has set up a monitoring system within a radius of five miles from the Ghost Gate, and the monitoring system combines an infrared face recognition system, once there is an unfamiliar face or abnormal situation, the alloy door in front of the glass door will automatically fall.

The Ghost Gate Pass and the top of the entire city wall are also equipped with a jet sensor device, which can spray the risk factors detected at the door in case of emergency, and the spray is of course the Lethe River water.

Through Linlong, she built a monitoring room on the top floor of the science and technology building in the industrial area to the north, using the paper figurines burned by Xiaoxin to monitor it.

Of course, others generally use mana to control the paper figure, but Mo Ran used the programming he mastered to transform the paper figure, implanted a chip in the paper man's body, and used a universal converter to convert energy input, becoming an alternative robot.

The ghost gate is guarded by a paper man, this kind of paper man will not be affected by the seven emotions and six desires, and will not be disturbed by the fluctuations of the divine consciousness of the underworld, and is the most suitable gatekeeper.

Mo Ran took the elevator to the top floor of the Science and Technology Building, and she faced dozens of electronic screens hanging in the monitoring room that had not yet been turned on, and was about to conduct a monitoring effect test around the ghost gate.

"The test begins. Unit 1. Mo Ran gave orders to the six paper figures standing beside him.

On the left, a male paper figure wearing a gold-rimmed black coat stepped forward and skillfully operated the electronic controller to open the monitoring electronic screen of the No. 1 machine.

"The picture is stable, it is working normally, and no abnormalities have been found." The male paper figure reported the situation coldly, and his speed of speech was a little slow and a little gloomy.

"Good. Unit 2. Mo Ran looked at the hanging electronic screen and ordered again.

On the right, a paper figure wearing a pink floral dress with a white background walked up to the controller and turned on the monitoring electronic screen of machine 2.

All the monitoring electronic screens have been tested in order, and all of them are functioning normally. Mo Ran nodded in satisfaction.

Next, we started testing the alloy gates.

"Close the aluminum door and spray the Lethe River."

On the surveillance video, the aluminum alloy gates in front of the four doors in the southeast, northwest and northwest fell from top to bottom like a guillotine, quickly but without much sound.

A row of small, raised sprinklers at the edge of the checkpoints outside the city walls and gates can be rotated 360° to spray the Lethe River at the target.

At Mo Ran's command, those small sprinklers collectively spewed out atomized Lechuan River water, and the mist almost enveloped the entire outer wall of the town.

"Well, that's it for now, no problem." Mo Ran was relieved to withdraw from the Science and Technology Building.

After Mo Ran returned to the mansion, she found Purple Smoke.

"Ziyan, I'm about to retreat and cultivate, and when the time comes, the people sent by the Netherworld Temple, you will screen and register as before.

Also, I built a large tower in the middle of the town yesterday called the Lock Demon Tower. All our subjects will be allowed to enter after applying with you.

Those with higher cultivation talent can be given priority to enter the training inside. Killing monsters in the tower can give you weapons or elixirs.

On the ground floor of the tower there is a control room, where you can observe the situation of the passers.

If someone enters the tower, it's best for someone to keep an eye on them in the control room, keep track of the people and the number of floors, and force them to exit if something goes wrong to avoid unnecessary casualties.

Oh, you can also break through when you have time, and when you break through the customs, you will probably be able to reach the peak of the Condensation Realm or above. ”

"Okay princess, you can leave it to us with confidence, we must be optimistic about the Demon Suppression Tower. As soon as we have time, the five of us will definitely go to the tower to see it. Ziyan was actually eager to try it in her heart, she hadn't seen such a magical tower yet.

Mo Ran returned to the room and brought an object to Xifeng.

Cherish the wind in the room.

Xifeng was sitting on the quilt with his eyes closed in the room, eating roast chicken legs leisurely, and suddenly a childish voice came out of his head: "You have a new email, please pay attention to check." ”

"Who! Who's pretending to be a ghost here? The wind slammed from the bed to the bottom of the bed, lifted the sheets, and there was no one. Looking up at the ceiling, there was no one either.

It looked around for a while. There was no trace of a human figure at all, not even a ghost shadow could be seen, and there was no trace of mana fluctuations. What's going on?

It's a good thing Mo Ran didn't see it, otherwise it would have made fun of it for a long time.

Xi Feng thought about it, such a strange situation, could it be that Mo Ran's dead female ghost was doing demons.

What is the email mentioned in the voice? Why can't you see anywhere?

No, there is one more place that I haven't seen. Xifeng lowered his head and swept the collar. Sure enough, there was an extra piece of black stuff in the collar, and a piece of white paper was tied to it.

Xifeng took that thing out of the collar, hey, isn't this the same thing as Xiaoxin's, called a walkie-talkie?

How is it used? Let me think. Well, I don't pay much attention to the details. Hey, there's a piece of paper tied here - an instruction manual.

According to the content of the manual, Xifeng sent a call link to Mo Ran.

"Sorry for the wind, will you finally use it? Not bad! "Yo, doesn't my little pet look stupid? Could it be Xiaoxin that it ran to ask?

"Cut, haven't you ever eaten pork and never seen a pig run? By the way, what are you doing with this thing for me? ”

"Oh, yes. I'm going to retreat, and it may take two or three years. In my absence, these two children please take care of me. ”

"Dead female ghost, you can also cultivate? It's a rarity. These two little guys and I are quite close to each other, and taking care of them is a trivial matter. The wind patted his chest against the air.

"Okay, I'm relieved to hear you say that." Mo Ran silently hung up the call.

Mo Ran entered the USB flash drive, opened the main menu of the main control hall, and looked at the forging list on the LCD screen, and more than 480 pieces of equipment had been prepared. Plus the ones that I dialed them before, it should be enough.

Mo Ran bowed her head and wrote two notes in the main control hall of the USB flash drive.

"Linlong, allocate all this equipment to Tempest, and by the way, these two notes are allocated to Tempest and Nightshadow respectively."

"Okay, please wait a minute, and it will start to be delivered right away." Linlong operated the buttons with her ten fingers flying in front of the electronic instrument next to her.

"After testing that the storage ring of the wind could not be filled with all the equipment at once, I automatically divided the equipment into three shipments." Linlong looked at the electronic screen with a serious face and said to Mo Ran.

"Okay, it doesn't matter, just send it." Mo Ran shrugged his shoulders indifferently at Linlong.