"I have been calling you for some time now. But you have been rejecting my call to you. It is just that as your strength increases over time, you are more and more able to reach my level of existence. You are gradually becoming unable to refuse my call. Finally this time I have successfully pulled you into my domain. Now we are on the same level and can have a formal conversation."
Sebastian looked at the woman before him. He asked in a low voice with a serious face. "Who are you and why do you have to call me?"
"You may have made a mistake about our connection. You were the first one to call out to each other. You were calling for the Authority of Death. You wanted to borrow the power of death. I followed your call to me. But you suddenly rejected me at the last moment.
Although I could no longer pay direct attention to you after that, it is not easy to meet an interesting existence like you in my infinite life. So I called you in return. Finally this time I have succeeded."
Looking at the woman, Sebastian could feel the pure power of death emanating from her.
The woman claimed that it was Sebastian who had called her the first time. Sebastian knew clearly that the so-called calling was probably referring to the time he had attempted to cast the Killing Curse. He had felt the terrifying force of death approaching. He had immediately stopped the curse. This was what the woman had meant by "rejecting the call."
Seeing Sebastian's expression of understanding, the woman knew that he had figured it out. So she spoke again. "Sebastian Shaw, I know about you. You are a soul from another world. You are a unique wonder of the universe. Besides me, many other cosmic entities have paid attention to you. They are wanting to see how far you can go in this world. At least so far, you have done quite well."
Hearing this revelation, Sebastian was startled at first. But then he calmed down.
His origins as a transmigrated soul were already known to them. Perhaps even from the very moment he had arrived in this world. However these cosmic beings who had noticed him had not made any attempt to interfere with him. This indicated that they had no ill will towards his arrival. Rather they had a willingness to sit back and watch how things unfolded.
In this way Sebastian felt there was no need to be so fearful of them.
"It seems you have figured it out quickly. You should also know that I bear you no ill will at all. Originally neither I nor the others would have approached you directly. But since you have already called to me, I have a mission for you.
As payment for completing this mission, I can grant you a shred of my Authority of Death. Once you possess this Authority, you will be able to cast your lethal magic normally without rejection.
Of course even with this Authority, it will not work perfectly against targets significantly more powerful than you.
Even against Thanos, you could not kill him directly with this magic. At most you could only weaken his vitality. You could shorten his lifespan. You could severely injure him."
The Authority of Death even surpassed the power represented by the six Infinity Stones. It was a true creation-level cosmic power. Obtaining even a shred of it would undoubtedly be a significant enhancement to Sebastian's abilities.
However the mission that Death was requesting was clearly not going to be an easy one. It was crucial to inquire thoroughly before accepting it. Otherwise it would be better to forgo this power than to agree to it casually.
"Can I first ask what the task you are talking about is?"
With a slight knowing smile, Death spoke directly. "Of course you may ask. In fact what I ask you to do is not too difficult for someone of your abilities. But because I cannot and will not directly interfere with the normal operation of the universe, there are some things that I am not able to do myself.
My Authority of Death has been partially lost in the long history of time. It has been scattered throughout the universe. What I need you to do is to help me find those lost fragments of Death Authority. You must sacrifice them to me at that time.
If you agree to this task, I can give you that trace of Death Authority right now. Through possessing it you can sense the location of other fragments of Death Authority. Then you can retrieve them back for me.
As long as you eventually take back all the Death Authority that has been scattered, then this trace of Death Authority will belong to you completely. I think you are not at a disadvantage in this deal am I right?"
The Death Authority that would completely belong to him meant that Sebastian would be able to use it to establish his own rules of death in the future. He could isolate and control death within a certain range. Just like the Vishanti and Sebastian who both possessed magical authority. They were both possessors of magical authority. But they were very different in how they used it.
Taking a deep breath, Sebastian looked at Death. He nodded slightly and said. "I agree to the deal. I will retrieve the lost Death Authority fragments for you."
"Thank you very much. Do not worry about the difficulty. There are not many Death Authority fragments out there. Only about three or four pieces. It will not cost you too much effort to find them. Now I will give you the promised reward. As for how to sacrifice them and how to contact me, I will tell you when the time comes."
As soon as she finished speaking, Death extended a single finger toward Sebastian. A beam of pure black and white light shot out from her fingertip. It pierced directly into Sebastian's forehead.
At this moment the black and white space where time had stopped suddenly shook violently. It quickly collapsed around them.
In the moment before Sebastian regained full consciousness, he heard Death's final words to him.
"I almost forgot to tell you my name. My name is Death!"
Before she could finish her words completely, Sebastian's eyes snapped open. Everything returned to normal.
Everything in his sight was filled with color and life once more. Ego before him was roaring and snarling as furiously as before. Nothing had changed in the physical world.
Sebastian flicked his wand lightly. A wisp of yellow-green flame escaped from the tip. It dissipated harmlessly into the air. At the same time Sebastian waved his wand again. He pointed it directly at Ego's exposed brain core. A burst of pure green light instantly shot out. It struck Ego's brain directly.
"Avada Kedavra!"
The entire core space was illuminated with green light. When the Killing Curse was cast and the magic took effect, the green light gradually faded away. It was replaced by a spreading sea of black and white. Everything in the area lost its life force.
Only Ego's brain core survived initially. As the core of his planetary consciousness, due to its immense cosmic power, it had a certain degree of resistance to the Killing Curse. It was barely able to survive. It did not completely turn black and white immediately. However it also looked gray and decayed. It was clearly on the verge of death.
"This... is impossible... what is that power... what..."
Now Ego had lost all ability to resist or fight back. His body which was the living planet was completely dead. With his true death coming, it would become a dead place devoid of life. It would no longer be suitable for any kind of life to inhabit or survive on.
Without bothering to answer Ego's dying questions, Sebastian went directly to Ego's exposed brain. With a slight wave of his wand, he carefully extracted two barely intact brain nerve samples. They were unaffected by the Killing Curse. He preserved them in magical stasis.
Then Sebastian waved his wand again at the dying brain. Wisps of gray mist gradually emerged from Ego's brain core. This was his soul being extracted.
Author's Note: Sebastian has made a deal with Death herself! He now has a fragment of Death Authority and can cast Avada Kedavra! What cosmic adventures await?
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