Mobile City Farming Guide

Chapter 229 Underground Hot War (4K)

At this moment, Ice Dome A5 is located at a node of a small tunnel complex, surrounded by tunnel entrances of all sizes, and it is located in the center of one of the tunnel entrances.

The other four mobile cities are too far away to arrive in a short time, so it has to rely on itself this time.

After the order to leave the field was given, the special forces activated their jetpacks and leaped into the air, climbing to various locations.

Each level 0.5 mobile city was assigned 20 special forces members, divided into 4 squads of 5 people each.

A small team is responsible for replacing mechanical limbs and operating level 3 weapons in the city to provide fire support.

The other three teams were each responsible for dealing with one spider demon.

Soon, three spider demons appeared from different tunnel entrances.

They were extremely cunning, deliberately choosing their angles to avoid being attacked by the cannons and machine guns of the Ice Dome A5.

"Destroy all humans!" a spider demon screamed.

Under the watchful eyes of the crowd, the special forces engaged them in a firefight.

As the jetpack activated, its exhaust trails carved sharp zigzag lines in the pitch-black space.

The special forces members moved through the space at breakneck speed, like a swarm of bees.

One of the members launched a climbing claw, which extended its barbs upon contact with the rock face. Combined with the force of the jetpack, it propelled him rapidly towards the top of the cave.

During this time, he held the gun in one hand and fired at the head of a spider demon.

The three members used jetpacks to create a brief hover in the air and threw grenades at another spider demon.

Taking advantage of a lull in their schedule, several special forces members deployed drones and began unleashing a barrage of fire on the Spider Demon.

However, these offensives yielded little result.

At first, everyone was a little confused, but after taking a closer look, they immediately understood.

The spider demons' vital parts were all wrapped in dense, translucent spider silk.

These spider silks intertwined and coiled, forming an incredibly tough silk armor on the spider demon's body.

"This is defensive spider silk!" Oleg exclaimed in surprise.

Like special forces, the spider demons also nimbly climb through space and launch counterattacks.

They spewed out large amounts of acid-corroding spider silk and magnetic spider silk.

The former corroded the rock walls and tunnels at the tunnel nodes, leaving them fragmented, while the latter was even more disgusting.

The magnetic spider silk taut rapidly during launch, and the intense magnetic force it emitted severely interfered with the operation of the jetpack and drone, and even the special forces' weapons were forcibly attracted away.

During this time, a spider demon spoke up indignantly.

"Why are humans invading our underground kingdom?"

Seeing that the situation was becoming increasingly precarious, Lin Mei made a decisive order.

"Quickly, use the special spray!"

The specially designed spray device is also located outside the mobile city; it looks like a spray gun connected to a large gas tank.

A special forces member immediately picked up the spray gun, turned on the gas canister, and pulled the trigger.

The spray gun then emitted a green mist of gas.

The moment the gas comes into contact with the acid-etched spider silk and the magnetic spider silk, they immediately lose their activity and degenerate into grayish-white lines like withered grass, which then peel off and wither away like dried snake skin.

The special spray contains a large amount of nerve-disrupting ingredients targeting spider demons. After inhaling the gas, the spider demons' joints exude foamy mucus, and their movements become sluggish and uncoordinated.

A spider demon attempting a surprise attack suddenly collapsed to its knees, its forelimbs buckling, followed by a spasmodic twitch of its right hind leg, before finally slumping to the ground like a broken marionette. Its compound eyes darted wildly, as if it had lost its mind.

The other two spider demons also met their demise.

"This thing is actually so useful?" Li Ye exclaimed in surprise.

Lin Mei smiled slightly.

"Of course, our Titan Throne is an organization that specializes in studying monsters and can develop different killing moves against monster civilizations."

Then she frowned slightly.

"While the special spray is effective, the quantity is limited, so it's best to use it sparingly unless absolutely necessary."

Taking advantage of the opportunity, the special forces members quickly focused their fire on the three-headed spider demons and collected their loot.

In addition to the usual Tier 3 resources and crystals, there is also a design blueprint.

I can't believe it actually came out!
There were some pleasant surprises about leaving the wilderness.

He said immediately.

"Quick! Let me see!"

The members immediately showed the Level 3 design drawings to the camera.

Item Name: "Frost Prophet" Frozen Helicopter

[Level: Level 3]

【附带效果：1.速度+20% 2.悬停稳定性+30% 3.冰冻速度+25%】

【打造需要：200单位铁矿（3级）、50单位精密飞行配件（3级）、100单位冰霜矿石（3级）】

This Tier 3 aerial vehicle features an ice-blue paint job and an elegant, streamlined design.

Its main weapon is an extreme cold ray cannon, and its secondary weapon is an ice explosion rocket.

The Arctic Ray Cannon fires a continuous freezing beam that progressively freezes targets over several seconds, rendering them extremely vulnerable. The beam also has a frost-spreading effect.

Ice-exploding rockets are a type of locked-type freezing projectile. They explode upon impact with a target, freezing everything within a radius of tens of meters.

As Li Ye looked around, his eyes gradually brightened.

I have to say, this is truly a great product.

However, if the frozen helicopter is to fully unleash its power, it needs to gain air superiority.

This Tier 3 air vehicle's air-to-air capability seems somewhat weak.

What made Li Ye gasp even more was that crafting it required 100 units of level 3 frost ore.

As for the Frost Ray Cannon and Ice Blast Rocket, they also require at least level 2 Frost Ore to replenish.

Although this thing is a bit delicate, Li Ye still wants to build a few.

After the mechanical limbs were reinstalled, Ice Dome A5 regained its mobility.

Meanwhile, Ice Dome A2 also made new discoveries.

"Report, we have discovered the Spider Demons' dungeon."

Everyone was stunned for a moment, then quickly looked at the screen of Ice Dome A1.

Ice Dome A2 slowly emerged from the tunnel and arrived at the entrance.

What appeared before it was a giant underground space.

At this moment, Ice Dome A2 is located at the top. From the air, the Spider Demon's dungeon looks like a giant anthill that has been vertically cut open.

However, this nest is not made of soil, but a grotesque spectacle woven from countless layers of spider silk, fungal carpet and rock walls.

The entire underground city extends downwards along the naturally formed giant vertical rock wall, with hundreds of spider silk-like suspension bridges and cableways weaving together in the dark air to connect the different levels of caves.

The first thing that catches the eye is the meticulously cultivated fungus farm of the spider demons, teeming with bioluminescent fungi, seemingly their primary food source. Next is a massive void in the center of the dungeon, a 360-degree connection to countless spider silk threads. These threads extend outwards along all the tunnels of the dungeon. Dozens of spider demons traverse within, gently tapping the silk with their limbs to create vibrations that travel far and wide.

Correspondingly, vibrations were also transmitted from many spider webs in the distance.

If you observe carefully, you will find that the vibration of spider silk has a rhythm of varying lengths.

Li Ye touched his chin thoughtfully.

This is probably how the spider demons communicate remotely.

It's old-fashioned, but practical.

When he turned his head, he found Lin Meoleg and the others staring intently at the spider silk.

“Did you know, young man, that two spider demons can communicate over extremely long distances using spider silk?” Lin Mei said slowly.

Li Ye's heart skipped a beat, and his expression changed slightly.

"Then, Professor Lin Mei, how far is this distance exactly?" he asked softly.

Lin Mei spoke concisely.

This Spider Demon dungeon in the tundra region is located in one of the most remote areas.

Through spider silk, the spider demons were able to transmit messages to the farthest and deepest dungeons of the underground kingdom.

"How is that possible?" Li Ye shook his head slightly.

He knew the depth of the underground kingdom; its horizontal extent was 764 million square kilometers, and its maximum vertical depth was 15871 meters.

If the message could really travel that far, it would be terrifying.

“That’s possible,” Lin Mei said, emphasizing each word. “Those are the communication spider silks produced by the spider demons.”

She told Li Ye her guess about the communication spider silk.

First, the communication spider silk is covered with special fluorescent hyphae. When the spiders want to send a message to a distant place, they gently tug at the silk with their limbs. At that moment, a bioluminescent pulse is generated on the silk.

Various information is conveyed through the frequency, length, and color of the bio-cold light pulses.

Secondly, the communication spider silk also contains tiny glands specially left by the spider demons, which can secrete a large number of different pheromones to transmit complex information such as "the dungeon has been invaded" or "our comrades are fighting the enemy in the tunnel." The spider demons can decipher these scent codes through chemoreceptors—however, the distance that scents can travel is ultimately limited.

Third, some key communication spider silks are also equipped with resonant cells, enabling the silk to transmit infrasound.

"Ultimately, this is just my guess," Lin Mei concluded. "Currently, the Ice Dome Research Base has not yet obtained the communication spider silk, so it cannot conduct research."

Li Ye looked at the screen and gently shook his head.

This spider demon dungeon has thousands of spider demons, so obtaining communication spider silk is obviously not as easy as imagined.

Besides this hollow space, the middle layer is also densely packed with the lair of the spider demons.

These nests, constructed from spider silk, appear from the outside like strings of sickly blisters clinging to the rock face. Yet, the interiors resemble translucent silk palaces.

The lower level is the incubation area.

"It's about time we called it a day," Lin Mei said. "We've already discovered the spider demons' dungeon; this trip has been quite fruitful."

Upon receiving the order, the 0.5-level mobile cities distributed in various locations all ceased operations.

Li Ye breathed a sigh of relief.

Although the underground world of the Spider Demon civilization is bizarre and stunning, it can still feel oppressive when you walk through it.

Just then, Lin Mei suddenly looked at him.

"The Spider Demon Civilization doesn't have many deployments in the tundra region. If I'm not mistaken, this should be the only underground city in the tundra region."

"Is that so?" Li Ye asked in surprise.

"Don't let your guard down," Lin Mei said softly. "This underground city is essentially an outpost for the spider demons in the tundra. They will continue to build tunnels, caves, and underground cities in the tundra in the future."

Following her train of thought, Li Ye instantly understood what she meant.

"So you mean we have to find a way to take down this underground city?"

“Yes.” Lin Mei nodded. “The humans have already begun constructing underground cities in the tundra region. We absolutely cannot allow the spider demons to seize this place.”

Li Ye fell into deep thought.

When recruiting in the Western Wilderness, he initiated another round of expansion, increasing the number of special forces to 300.

It has not been expanded since then.

The reason is simple: the role of special forces is ultimately not as broad as that of conventional forces.

Its definition is "small but elite," suitable for small-scale operations.

In recent days, after several rounds of resource investment, the special forces have finally completed the standard equipment deployment for all personnel.

With only 300 people, it's unlikely that they can defeat the thousands of spider demons in the dungeon.

In fact, some of the 300 people were previously injured and have not yet recovered.

Specialized sprays are effective, but the quantity is too limited.

Just then, footsteps suddenly came from afar.

The two turned around and saw a researcher leading Heath over.

"Archbishop Hiss, what brings you here?" Li Ye asked in surprise. "Shouldn't you be commanding operations at sea?"

"The sea is currently relatively calm," Heath replied casually.

Li Ye was initially taken aback, but after realizing what was happening, he couldn't help but feel delighted.

"Those monster civilizations aren't coming to the Frost Continent anymore?"

Heath shook his head.

"No, according to reconnaissance, they either landed in other areas of Arctic or established a presence on an island."

"."

Li Ye then realized that the main task of the mobile city combat group led by Hiss was to guard the tundra area so that the human side could build an underground city to accommodate survivors.

"Then what are you doing at the Titan Throne research base?" he asked.

Heath looked up at the screen.

“The plan has changed; the higher-ups have issued new orders,” he said, emphasizing each word. “This mission is far more challenging than defending the tundra.”

From him, everyone present learned everything.

Humanity desires to take control of the underground kingdom built by the Spider Demon civilization.

In a sense, this underground kingdom is like a continent-sized fortification.

The tunnels, caves, and underground cities excavated and built by the Spider Demon civilization are intertwined, forming a complex underground transportation network.

If humanity can control this "transportation network," it can launch attacks on the ground in various parts of Arctic Continent, or retreat to hide troops in caves and underground cities deep underground, or even settle human survivors.

"So do you all understand now? As long as we can control the entire underground kingdom, humanity will essentially control most of the Frozen Continent," Heath concluded.

Since the outer seas of the tundra were at peace, Archbishop Hiss was transferred to prepare for the attack on the Spider Demon civilization.

The Ice Dome research base will serve as a temporary command center.

(End of this chapter)