Reincarnated as the Demon King's Son

"We will take our leave," Nirder said. "Thanks for helping us and showing us such a good show. I will return the favor."

Aldred nodded. "No need to thank me. One of my aircraft will escort you."

"I appreciate that, but I don't want to burden you any further." Nirder grabbed another silver turtle out of his pocket. "See you later."

The silver turtle moaned and covered them in silver light before they vanished.

"Did that turtle just moan?" Aldred blinked.

"According to my sensors, the intensity level of vibration and sounds detected indeed confirmed that the silver turtle was moaning," Corduul replied.

Aldred was speechless before he shook his head and put his attention to the matter at hand. Looking at the screen, he saw the LWAF Pulsar chasing the retreating warriors and magicians before pulverizing them with powerful laser attacks.

The other divisions of air forces repeatedly scanned the city numerous times for any enemies. Every time, they found one, they would immediately swarmed the place and eliminate all the enemies. The civilians were mostly unharmed and there were minimal damages to the buildings because the laser attacks were quite precise.

Hours passed, and Corduul spoke: "Master, we have confirmed that there is no more hidden enemies within the city, and redeem that you are safe to enter it."

"Hmm." Aldred nodded. "Let the CS-Armageddon-57 to patrol the sky and be wary of everything. The enemies might surprise us."

"Yes, master."

Aldred and Corduul teleported above the city. They were floating with the wind blowing their clothes.

"And yet another city is taken," Aldred said. "Proceed to dig all the resources around here. The king might want this city and give it to someone else. Before that happen, I want to get as much as I can from this city."

"Yes, master. Proceeding to send the miner division."

Aldred nodded. "Hmmm. And take the smaller villages and towns around here."

"Yes, master." Corduul raised his palm and a circular metallic object floated on top of his hand.

The metallic object flew 5 kilometers away from the city, fell to the ground, and then disturbed the air around it, and then it created a crack in space itself.

Back on Aldred's territory, inside the secret underground base, thousands upon thousands of robots with drills, pickaxes, and lights were walking forward in the darkness.

Behind them, a whole batallion of metallic haul trucks followed.

Suddenly, in front of them, a gigantic portal opened up with a spinning blue vortex. All of them entered the portal and came out near the City of Normingham.

Corduul gave the command and hundreds of drones began to scan the area for valuable materials. After hours of scanning, the mining division finally began to move. Rushing towards the nearby mountains, hills, and riverside, they began to dig large holes and and found valuable ores and stones.

These ores and stones could be sold at a high price, because they could be turned into armor or as materials to create a fort. There were many other uses for these materials as well. Some could be turned into powder to increase the mana quality in the area for a set amount of time.

Which made it valuable for high ranking magicians because they needed it for optimizing their meditation and training.

That, or Corduul could use it for experiment in order to create stronger robots.

The drones scanned the area for 20 kilometers outside the city. Apparently, there were a lot of expensive minerals around here, but nobody knows about it, because it was too deep.

"I am pretty sure magic can be used to find valuable mineral veins. I wonder why didn't they do it?"

Corduul replied: "According to what we gathered. The ruler of this city was afraid that the enemy will attack if they know his city was rich with minerals. This city was very close to Withokere which allows it to became a sort of trading points from both nations. It already earned enough wealth, so they didn't need to risk it."

"I forgot about the ruler of this city. Did we kill him already?"

"He tried to escape with a flying warships earlier, but we manage to catch and obtain all the information he has in his brain."

"That's glad to hear. By the way, what do we know about Nirder Swadedon?"

Corduul's eyes flickered with blue lights as his brain grabbed some information from the database. "Swadedon Earldom is located to the east of Withokere. His territory is right next to Duke Hushum's territory. It was also located right next to Bramland Parish, one of the Divine Empire of Stotford's territory. Reportedly, Swadedon had a lot of skirmishes against them."

"That makes their warriors so strong. They train and fight all the time," Aldred said.

"Swadedon's military had increased and expanded ever since Nirder was put as the head of the family."

"Are they powerful?"

"Data suggest that they are more than likely to be stronger than ours."

Aldred nodded. "The army we see earlier was just a small part of their battle strength. I even heard that they weren't even planning a serious attack. And yet, they manage to destroy an entire division of flying warships."

Corduul and Aldred chatted for a while until Corduul received a report.

"Master, we have found something that might be of use to you."

"What is it?"

"Follow me." Corduul swiped the air, ripping the space apart.

Corduul stepped inside and Aldred followed.

They were now in a dark tunnel. The portal closed behind them.

"Where are we going?" Aldred asked.

"Over there." Corduul pointed forward.

Aldred raised an eyebrow. "Why are you acting so mysterious. This is unlike you."

Corduul was silent as he led Aldred walking forward in the dark tunnel. After a few hours, they saw a giant crystal, standing 15 meters tall inside the cave. It let out a mystifying purple glow.

"What is that?" Aldred activated his godly eyes, and his whole body trembled in pain. His eyes widened, refusing to close as veins bulged all over his body. Blood trickled out of his nose.

"Fuck!"

Corduul stood in front of Aldred, blocking his sight from the crystal. Aldred finally could move again as he took a bunch of quick breath and turned off his godly eyes.

"What the fuck is that?"

"Our scanners failed to comprehend its existence, meaning, we do not know what it is."

Aldred did not want to activate his godly eyes again. Whatever this crystal was, it had the effect of paralyzing him if he look into its true form.

But he did remember that the crystal a large amount of violent and chaotic energy. Although, for some reason, he cannot sensed it despite being this close.

If an object really have that kind of energy, any living entity from kilometers away would be able to detect it.

Aldred and Corduul walked towards the crystal. They felt nothing out of the ordinary. In fact, the crystal seemed like any other crystal. There looked to be nothing special of it.

"Can we cut a small part of it?" Aldred asked.

"We can try."

A bladed robot was called as Aldred and Corduul stepped back. The bladed robot make sure that its masters were in a safe distance before it began to slash at the crystals.

Clang!

The blade made out of hardened special alloy snapped into two.

"Try using this." Aldred summoned his Phantom Doomblade and threw it at the robot.

The robot caught it and slashed the crystal again.

This time, the robot's arm cracked.

"Hmmm, it seems to be impossible," Aldred said.

Aldred and Corduul approached the crystal again. After a few seconds, they decided to touch it.

Suddenly, their visions went inward, towards their mind, everything they think about appeared in their sight as if they were in a dream. The minds worked and think at all times, so the scenes changed rapidly as Aldred was confused and his thought in a shamble.

After a few minutes, his consciousness returned to reality. He was confused for a few seconds, until he realized something. All the skills he learned became much clearer to him as if he had practiced them for an extra one hundred years.

"Beastly Rip!" Aldred clawed the air, ripping the space apart and created ten kilometer long cave. "This... this is amazing. This crystals can help me master my skill to their utmost potential!"

Aldred looked to the side and saw dozens of notification telling him that his skills had leveled up.

Even his golem creation and magical construct skill increased in levels. He didn't even plan to upgrade this skill for quite a while because Corduul had handle these problems for him.

But most importantly, his [Beastly Rip (Legendary)] skill had tripled in strength. From level 1 to level 3 in an instant!

Even Aldred was shocked by the sort of development made possible by this crystal.

"This thing is too valuable. Make sure no one knows about it."