Magic? My Iron Torrent will sweep it all away!

The six antimatter devices killed Aker and also erased the northwestern outer city of Kona Base from the map.

Looking down from high above, a shocking black crater appeared in the center of the originally flat defense zone. The crater was several kilometers in diameter and more than three thousand meters deep at its deepest point. Rock layers that had been melted and then re-solidified by the high temperature remained on the crater walls.

At this moment, the area around the giant pit was not desolate at all.

Heavy transport vehicles lined up in a long row, shuttling back and forth along the makeshift armored road, while engineering robots, with heavy cutting arms, moved quickly among the demon corpses.

The dismembered bodies were loaded into transport vehicles and sent to the rear of the base.

What used to be the least valuable things on the battlefield are now all raw materials for factories.

A six-legged engineering robot stepped over the wreckage of the heavily armored demon soldier, its mechanical arm gripping a dark red armor plate, the cutting wheel emitting a piercing screeching sound.

After the plate fell, another robot immediately took over and used a vacuum suction device to clean up the seeping black liquid.

In the distance, several drones hovered in mid-air, continuously scanning the ground.

Only after confirming there is no danger will the vehicles responsible for cleaning up proceed to the next area.

Lin Mo, dressed in a silver-gray tight-fitting spacesuit with a thin anti-radiation film covering his transparent face mask, stood not far away watching the bustling construction site.

Fendona stood beside him, her Moonlight Staff fixed behind her back, her emerald green eyes reflecting the torrent of steel rushing back and forth.

Zheng Jinren, holding a tablet, checked the construction progress of the Northwest Defense Zone item by item.

"The old city wall cannot be rebuilt on the original site."

Zheng Jinren raised his hand and pointed to the edge of the giant pit. His voice came through the helmet communicator, still as methodical as ever.

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"The geology around the pit walls is not yet stable. Forced backfilling would consume a lot of materials, and it is not suitable for deploying heavy artillery and ammunition depots in the future."

Lin Mo nodded and looked at the newly drawn defensive line.

A row of striking red signs extends northward from the outside of the giant pit, bypassing the collapse area and reconnecting with the eastern and western defense lines.

The new city wall extends several kilometers outward from the original northwest outer city.

As for this 3,000-meter-deep giant pit, the base's engineering department has completed the preliminary planning. Once the geology stabilizes, an underground storage area, a heavy maintenance area, and some energy facilities will be built at the bottom of the pit.

Aker tried to escape through the underground passage, but ultimately failed.

The giant crater it left behind will become the foundation for the continued expansion of the Kona base.

"The new city wall is 16.8 kilometers long and 20 meters high, which is one-third longer than originally planned."

Zheng Jinren brought up the engineering model, and the eight construction sections on the model were marked with different colors.

"We divided the project into multiple sections for simultaneous construction. The multi-functional factory was responsible for prefabricating wall panels, foundation piles, and blasting modules, while engineering robots were responsible for installation, and the transportation line provided materials without interruption."

Looking at the long red line, Lin Mo couldn't help but ask:

"How long would it take to build such a long wall?"

"Twenty days."

"Twenty days?"

Lin Mo paused for a moment, then turned his gaze back to the construction site.

The defensive city wall, which is more than ten kilometers long and twenty meters high, also needs to be reserved for artillery equipment, maintenance passages, power supply lines and armored gates.

Before the disaster, let alone building a city wall, even constructing a large building would have required a lot of groundwork in twenty days.

Zheng Jinren saw through his thoughts and a rare smile appeared on his face.

"Commander Lin, our current construction capabilities are far superior to what they used to be."

He pointed ahead.

"Look there, the foundation is handled by automatic pile drilling machines, and 800 engineering robots work in shifts 24 hours a day. Prefabricated modules are delivered directly to the installation site after leaving the factory."

"When we built the first ring of walls around the Kona base, it took us just over six months to complete it."

"We're only rebuilding a part of it now, and it's being done in stages and simultaneously. Twenty days should be enough."

Not far away, a giant tracked crane slowly rotated its robotic arm.

A 40-meter-long black armored wall panel, covered with interlocking grooves, was hoisted into the air, and dozens of engineering robots simultaneously extended their mechanical arms to fix it in place from different angles.

When the wall panel falls, the connection automatically locks.

Immediately afterwards, the second and third wall panels were delivered.

The entire section of the city wall appears to be continuously piled up by an invisible hand, visibly rising higher and higher.

Fendona stared for a long time before taking a soft breath.

She had seen the elves build city walls with trees and magic, and she had also seen the holy humans spend years building a border fortress.

But these lifeless steel creations before her eyes were changing the earth at a speed she could hardly comprehend.

"No wonder the dwarf Thorin always said that Great Xia's factories were more terrifying than the dwarves' best forges."

"Fendona said softly."

"What's so scary about that?" Lin Mo smiled.

"That's efficiency!"

Fendona glanced back at him and smiled:

"For us Terrans, such efficiency is terrifying; it surpasses magic."

Zheng Jinren switched the tablet to another report, his expression turning serious again.

"The fact that the city wall can be completed in twenty days does not mean that it is absolutely safe during those twenty days."

"After Aker's death, the demonic tide retreated, but the demons on the Kona satellite were not completely wiped out."

"They may fall into chaos after losing their leader, but that doesn't mean there won't be new, higher-ranking units to take over command."

Lin Mo understood what he meant.

The biggest weakness of Kona base right now is that the northwest barrier and the outer city defense line have been destroyed at the same time.

Before the new city walls were completed, the entire base was in a relatively weak state.

"I've already discussed the barrier with Fendona."

Lin Mo turned to look at Fendona, his expression turning serious.

"Please help me."

"The treatment and compensation of the elven mage will be carried out as previously agreed."

Fendona glanced at the city wall; two months of hard work had been mostly destroyed.

She nodded.

"No problem, we'll set up the magic circle."

Zheng Jinren nodded.

"Then I'll leave it to you."

"The engineering department will fully cooperate with you."

Fendona smiled and said, "Thank you, Commander Zheng."

Just then, Lin Mo seemed to remember something.

"By the way, Commander Zheng, are you going to the official founding ceremony of the Starfleet tomorrow?"

The Great Xia recently launched a total of 38 spaceships: one for each of the 36 underground cities, one for the lunar base, and one for the Kona satellite base.

After a period of testing and adjustments, it has been officially accepted and the space fleet has been established.

Tomorrow is the inauguration ceremony, and at the same time, the good news of the successful defense of Kona Base will be announced to the people.

Zheng Jinren remained silent for a few seconds; this ceremony was very important.

After the disaster struck, the people of Daxia experienced the fear of moving into underground cities, the despair of the slowing down of Earth, and the bloody battle when the demon god invaded.

Now, with all thirty-eight spaceships having passed acceptance testing, the Starfleet has been officially established.

This is not just a launch ceremony.

It's telling everyone that they're not just hiding underground from the apocalypse, but now they have the power to step out into the stars!