SSS-Rank Engineer: Only I Can Create Legendary Weapons

Percy's plan was simple in essence, they always were, but where the problem came was implementation.

For a long time, he just stood there, calculating using his system, meditating, and using the spirits to recall memories, a trick he learned a couple of years ago.

With this, he was able to cycle through all his memories of hermetic materials and circles.

The plan was to create a new Spellcore here and now with his customizable rewards, then use it to take control of the entire temple. This was based on his understanding of how this temple's main circle worked.

It needed someone at the center of the circle to draw on its full power—a human being at the interface between the energy and the casting of spells. And it was all done by the special circle drawn here that allowed a spirit to share a human's intelligence.

These spirits were often Rank 2 at most, but if he was reading things right, he could take control of the spirit inside the temple's circle. This would give him control over all of the temple.

The insight he gained in this room allowed him to take a step towards perfecting the second version of the Spellcore.

His version of the Spellcore was constrained by two things: too much power would cause explosions if there was misalignment, and it took ages to charge.

If he could use the principles of the circle this temple had in his Spellcore, then he could fix the charging problem and customize more spells into the Spellbolt without causing misalignment.

"The misalignment is caused by some kind of back voltage, it seems," he murmured to himself. "It's not electricity, but the problem is similar."

Back voltage was when a certain amount of energy flowed backward in a circuit when it was turned off. Each time he fired the Spellbolt, some residue spirit energy remained, and it flowed back into the Earth-Avenger circle.

This built up till it caused a small misalignment. But if the spirit in the Spellcore was smarter, it could draw that excess energy back through the circle and into the Spellcore.

"Okay, let's do this."

The vision for the version two Spellcore was completed in his head; now he would use a Rank 2 customizable reward to fully build it and have it completed and ready to go.

There was a chance it could fail if he was missing a small part.

But that couldn't happen… probably.

Mostly because with the way he enhanced his memory with spirits, he could see and remember every part needed for the Spellcore to work.

White light flashed, outlining each part of the Spellcore like an expanding blueprint.

Percy watched it form slowly, all the worry and anxiety illuminated on his face. His eyes, a mix of shifting purple and grey, glanced from the forming Spellcore to the furious Ramona on the floor.

She would definitely want to fight when the disabling shot faded from her body, but if he did this in time…

Then no one would be able to fight back against him.

Except maybe Lethel, the Rank 4 Spiritmancer.

But Percy would have a fun time breaking down his defense and defeating him.

The key to the temple—his new Spellcore—finished forming with a final burst of light that made him squint.

It was a simple grey object, shaped sort of like a hockey puck. All the interesting parts were housed inside of it, shielded from outside interference.

He walked towards the center of the circle and placed it down carefully, stepping away immediately after in case it exploded, and activating the shield magic tool on his belt.

The Spellcore began to glow, a gentle blue that grew until it illuminated the entire cavern and the white stone altar.

"Now for the last ingredient," he said to himself, sitting down in front of the Spellcore. He let out a breath, then touched the Spellcore before he could think twice.

The world faded the instant he laid a finger on it, replaced by an empty black void with a single yellow spirit floating about.

It was an earth spirit, most likely the spirit that was used to control the generator circle.

People commonly used an earth spirit in these types of circles. Or two spirits. It depended on what circle you used and how many spirit gates it had.

The lonely earth spirit drifted towards him, and he held out a hand, touching it just a bit with his index finger.

Fire shot through his hands and into his body immediately.

He could see it now—the mass of power that the Leyline under the temple held.

It was honestly terrifying.

There was enough here to erase a city from the map, or reduce a mountain to rubble.

He took in a breath and tried to find his balance. His mind was also filled with knowledge of every single magic circle scattered through the temple: the ones that controlled how the golems were spawned, the one that identified enemies and allies.

Even circles that remained unused for years because of the power they demanded.

He took a few seconds to come to terms with how much power was at his fingertips. He could shape the temple with cataclysmic earth spells, or force everyone off this ground. Even the curse that swallowed people into the ground was under his control.

But that wasn't important for now.

What was important was helping Thalos and the others upstairs.

Behind him, in the real world, Ramona had finally freed herself from the effects of the disabling shot. Her eyes were red with tears and madness. She rose, marching closer to Percy's still body.

He was just sitting there, eyes closed, communing with the spirit of the temple, but she didn't care about any of that. All that was on her mind was strangling him with her bare hands.

But before she could get there, a well of gravity fell on her.

Her knees slammed into the earth, the grains of sand that made up her body became heavier than a castle.

Percy spoke without even looking at her.

"I'm sorry about your brother, Ramona. But the more I understand what we have here, the more I realize that Python can never be allowed into this world. And Sebas must die."

Upstairs and throughout the temple, everyone in the building felt the earth begin to shake. Walls disappeared and floors shifted; all the stairs slowly melded back into the walls, forcing the Whitemoon grunts into the corridors.

Where Percy unleashed hordes of golems.

In the topmost tower, Lethel's spirit shook, warning him of danger—something that hadn't happened in years.

Thalos didn't even notice the ground shaking; his body was covered in ash, skin red from just proximity to Lethel's white-hot flames.

But his grey eyes were still focused on the man who burned him. His spirit didn't warn him about any danger, so his thoughts went to Percy.

His son did something to the temple.

Sebas raised an eyebrow, both he and George pausing in confusion.

Was this a sign of Lord Python being reborn?

"It seems that Ramona has finished her summoning," Sebas said to Lethel, not catching the worry in the man's eye. "We should finish off these ones and see if we can recover Perseus' body to use—"

"You're not recovering shit," a voice said, cutting him off. They all turned to see something emerging from the wall.

Another stone golem was their first guess.

But it didn't stop there. Its features kept refining themselves until the brown stone turned white, forming hair and clothes began to become distinct.

Then the hair divided itself in half—one side black, the other white.

A pair of grey eyes emerged from the dirt, bright with vengeance.

Perseus Amphene had returned to the top of the temple.

Sebas' eyes widened in terror.

"What have you done—" he began.

"On your knees, mongrel," Percy commanded simply.

The world came down on Sebas' spine and pushed him down to his knees; every molecule in his body responded to the command, becoming heavier than anything he could imagine.

He slammed face-first into the ground, groaning as he struggled to keep his form together.

"I won't let you escape," Percy promised him. "You'll die here with your goals."