The Greatest Warrior of All Time Returns-Chapter 415

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Chapter 415

Isna, who had been moving separately after parting ways with Leon, ended up meeting Rebecca and Meryl—who had also been moving on their own—again in the middle.

“Lady Isna! You’re not hurt anywhere, are you?”

“Yeah. I’m fine.”

“My goodness…….”

She answered lightly as she flicked the blood off her +15 orichalcum sword.

Around her, the corpses of the Revenants who had betrayed the Watchers were piled high.

Almost all of them had been cut down in a single strike, and even those who had not seemed to have died within the second slash—only clean traces remained.

“Sorry you had to see such an unpleasant sight.”

“No……. These are the ones who killed their comrades. I don’t feel any sympathy for them.”

They were people who had been consumed by vengeance and ultimately committed acts they never should have.

That was why Isna, and the other two as well, had shown no mercy in their attacks.

“Sir Leon…….”

“He went another way. Judging from the way his aura has been vibrating for a while, it seems he’s run into something big.”

“Will the Sword Saint be along the path we’re taking?”

At Rebecca’s question, Meryl nodded.

“This should be right. There’s a hidden passage inside.”

“Please lead the way, Meryl.”

“Leave it to me, Lady Isna.”

KWAANG!!!!

At the firmly locked iron door Meryl pointed to, Isna swung her sword and split it apart.

“The leader!?”

As soon as they stepped into the hidden underground corridor, the remaining Watcher traitors gasped in shock and drew their weapons all at once.

Meryl and Rebecca prepared for battle at the same time, but they were already quite exhausted from the minor skirmishes they had encountered on the way here.

Because of that, Isna stepped forward without hesitation and drew her orichalcum sword.

Fwoooosh!!

As if expressing her anger, the authority of flames burning brightly resonated with her aura blade, making the surrounding air tremble.

“D–Damn it! Stop her! Buy time!”

“Shit!”

They knew how strong Isna was.

And that was exactly why they also knew how dire the situation was now that Isna had turned against them.

They had to grab the target and get out of here quickly, but the fact that they had already been discovered pressed down on them with despair.

Step…… step…….

Isna took one step, then another, and then scattered as if dissolving into thin air.

The place she appeared next was right in front of the nearest traitor.

Puh-BOOM!!

With a tremendous noise, an explosion occurred, and one traitor caught in the sword strike was burned to ashes without even managing a scream.

The others belatedly counterattacked, but their attacks sliced through empty air once again.

In less than a single second, Isna repeatedly appeared and vanished as if gliding, burning the traitors’ bodies as they were.

Realizing in an instant that they had all been overwhelmed, one executive trembled violently and collapsed to the ground.

Isna slowly approached him and aimed the tip of her sword at him.

“Where is he?”

“Th–That…….”

Stab!!

As Isna’s sword pierced through his shoulder, he opened his mouth wide and gagged without even managing a scream.

“I won’t ask twice. Answer.”

“I–Inside…….”

Slash!!

Isna cut off the writhing traitor’s neck.

The dead man had once been one of the original members whom Isna herself had brought into the Watchers.

But now, he was no longer the man once filled with ideals.

“He used to follow you a lot, Lady Isna. I wonder when he started harboring such different thoughts…….”

“That doesn’t matter. Did he betray the comrades of the Watchers or not? That’s what matters.”

With this battle, practically all of the Watcher traitors would be purged.

The only ones left would be a handful of members who had scattered and gone into hiding, and the three of them here.

It was unfortunate that many of the executives who had moved for the greater cause and understood Isna’s pain well had already lost their lives.

KWAANG!!!

When they pushed open the tightly sealed underground facility and entered, there stood a gigantic cross installed with grotesque magitech devices.

And.

There, hanging unconscious while blood dripped down, was the Sword Saint, Osberg.

“Grandfather…….”

Isna suppressed the emotion that made her want to rush forward at once and approached cautiously while keeping her guard up.

“Let’s rescue him first!”

From the looks of it, it seemed they had been sending some kind of information elsewhere through the Sword Saint’s blood and the magic circle installed around him.

Isna smashed the magic circle in an instant and lowered the Sword Saint’s body from where it had been nailed to the cross.

“Meryl. Healing potion.”

“Here it is.”

If Luna had been here there would be no worry, but she was not present now.

Isna sprinkled the Cascadia-made healing potion Meryl handed her over his body.

Then the Sword Saint, who had been unconscious, coughed painfully and slowly regained consciousness.

“You are…….”

“Why did you foolishly come here alone?”

Isna asked coldly with a masked, distorted voice.

In her heart, she wanted to hug him immediately and cry as she asked.

Why did you come alone?

You of all people should know how dangerous these people are.

Why did you suddenly lose your head and come all the way here?

But she could not ask such desperate questions.

Isna absolutely could not reveal her identity to her grandfather.

At her question, the Sword Saint frowned slightly in pain and asked,

“Leader of the Watchers. The others who were here…….”

“Most of it has already been taken care of. The leader of the traitors, Garlan, is probably being dealt with by Sir Leon right now.”

She did not consider the possibility of Leon losing.

Garlan’s only plan had already been thrown off from the start.

That was why Isna focused on the grandfather before her.

“You’re not the type to do something this foolish. And why did you come here alone?”

“I had to.”

The Sword Saint slowly raised his body.

Then he looked around.

“By any chance… did you see my sword nearby?”

“Your sword seems to be over there.”

In one corner, some magitech device was running in order to analyze the enhancement power contained in the sword.

It seemed they had noticed the divine aura that was the core ability of the Hall of Reinforcement, but unfortunately they did not seem to have realized exactly what it was or what principle it worked on.

After retrieving his sword, Osberg said,

“I am grateful for the help.”

“Then answer me. Why on earth?”

“There was something I had to finish with my own hands alone, without letting others know.”

“Enough to do something this foolish?”

Even knowing it was dangerous to come alone.

He was not a man foolish enough to come alone out of mere bravado.

“I could bring no one.”

He grabbed Isna’s shoulder tightly.

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“Go back. I still have things left to do. This place has nothing more to do with you, does it?”

“…….”

Why was he trying to send her away?

She still could not understand Osberg’s actions.

Watching him slowly turn his back, Isna wore an expression of incomprehension.

The current Osberg was speaking as if he had some reason that forced him to settle things here alone, in a hurry.

She wondered if he was doing this to confront the Outer God after learning about it, but judging by his actions, that was not it.

Isna felt as if her insides were burning.

“Do you perhaps have another healing potion?”

Osberg asked after gathering his belongings.

Meryl handed him one more potion, and Osberg poured it into his mouth without hesitation before drawing his sword.

“This place will soon be erased from the map. So leave at once.”

He spoke as if he would accept no objections.

That was when it happened.

Crack…….

A chilling sound rang out.

However, it seemed that neither the Sword Saint, nor Meryl, nor Rebecca had heard it.

With a puzzled expression, Isna looked around.

And then.

She discovered a book placed at the very back of the research facility that gave off a sinister feeling.

“This is bad…… everyone run!!!”

She shouted urgently, belatedly.

But the book reacted first.

A trap!

Isna clenched her teeth and tried to react, but at that moment a voice burrowed into her mind.

[Do not resist. Your purpose and will hold no meaning. I shall personally grant you salvation.]

With the chilling voice, Isna staggered and collapsed to her knees.

Since when had it been?

Since the time the Leon of the closed world had handed over his authority.

And since awakening that authority again in this world, a chilling voice had periodically echoed in her head.

Understanding that voice was impossible.

The very act of trying gnawed at her sanity and drove her mad.

Despite being the most powerful force, it disturbed her mind every time like this.

She clenched her teeth.

Regardless, the sinister energy emitted from the book flew toward Isna at tremendous speed.

[Do not resist. Offer your flesh unto me.]

At the ghastly voice, Isna tried to resist, but her body refused to obey her as if rejecting her own command.

“Leader!!”

“Get out of the way!”

Meryl and Rebecca shouted in urgency, but Isna knelt clutching her head, unable to move.

Puh-KWAHK!!!!!

A gruesome sound of flesh being pierced rang out.

Isna’s eyes widened beneath her mask.

“Why…….”

In front of her, the Sword Saint Osberg had thrown himself forward and taken the violet energy into his own body.

“Cough…… kgh!!”

Contaminated blood poured from his mouth.

“Why…….”

“My child……. how could a grandfather watch his granddaughter get hurt?”

For a moment Isna wondered if she had ever taken off her mask in front of Osberg.

“W-What do you mean…….”

“My child……. you may fool everyone else, but you cannot fool this old man’s eyes.”

Isna felt the blood in her entire body turn cold.

The immense power churned his insides into chaos.

It was not something that could be healed with a potion.

Luna.

Luna had to be here.

If there was any consolation, it was that because the power that had only worked on Isna had been taken by the Sword Saint instead, instant death had been avoided.

Watching his body slowly begin to wither, Isna trembled violently.

Osberg then tightly grasped her hand.

“Isna. Do not cry.”

As if seeing through the face hidden beyond the mask, he pierced right through her.

“You’ve always been like this since you were little. When you’re about to cry, your hands shake like this without mercy.”

“…….”

This was not some extraordinary sensing ability.

It was merely the intuition of a grandfather who had paid close attention to every little habit of his granddaughter.

Only now did everything make sense.

Why his behavior had changed after first meeting the disguised Isna at the Rift of Despair.

Why he had pushed in here alone.

“Why…… why didn’t you say anything then…….”

Isna’s tear-filled voice that she could no longer hide came out.

“H…… haha……. who knows. I wanted you to live an ordinary life.”

His body, which was slowly drying out, visibly worsened.

Isna tried to pull up her power desperately as if to somehow save him.

But.

She could not.

“Isna. Remember this. No matter what path you take, this old man will support you. I know better than anyone, and believe, that you did not harm someone simply soaked in killing intent.”

Having said that, Osberg closed his eyes as if he had no regrets left.

His body began to shrivel even faster.

“N-No……. No!!!”

Isna tore off her mask, burst into tears, and desperately embraced him.

But the situation did not change.

Ten thousand thoughts raced through her mind.

Just as her confusion reached its peak with the single desire to save him somehow,

A voice was heard.

[Do you wish to save him? Do you desire power?]

At the whispering voice, Isna’s eyes widened.

If she could just save him……. No.

Making a deal with an Outer God—was she insane?

The one who had made her grandfather like this in the first place was that very being.

But precisely because it was that being, it might be able to save her grandfather.

As countless thoughts swirled in her mind, the Outer God’s whisper deepened further.

That was when it happened.

“You’re in the way. Move.” 𝘧𝓇ℯℯ𝑤ℯ𝘣𝓃ℴ𝓋𝑒𝑙.𝑐𝘰𝑚

A voice that should not have been heard here rang out calmly.

Thud!!

And then, a foot imbued with five-colored energy kicked the fallen Osberg in the abdomen, causing a grotesque aura to pour out of Osberg’s mouth as if he were vomiting it.

“Uwaegh!! Cough!?”

Silence wrapped around the surroundings.

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