The Absorbed Obscurus

"Avada Kedavra"

The deep green light struck Obscurus, causing it to tremble violently. The scattered black oily substance quickly turned into particles as if it had been dried out, and the black mist-like particles evaporated and dissipated as fast as water vapor under the blazing sun.

After unconsciously casting the Killing Curse, Sean finally regained some clarity of mind.

He felt no joy at having severely Obscurus; instead, his expression was extremely grim.

Just now, a sudden surge of violent thoughts overwhelmed him, and his mind was filled with killing intent. Under the control of that thought, casting the Killing Curse was almost as natural as instinct.

He was no stranger to this feeling; Sean had faced a similar situation when he was calming down the Ashwinder.

He experienced it twice more, with Nagini and Daisy, but Dumbledore was present at the time, and the Slowing Potion emptied his mind.

But this violent surge came without warning, and he couldn't even control his actions.

Sean gripped his wand tightly, the crimson in his eyes only slightly diminishing, the violence continuing to assault his thoughts.

In the courtyard, the Obscurus creature, which had spread its body over the entire villa, shrank rapidly, and its deep red core began to flicker urgently.

Without waiting for Sean to suppress his emotions, the dark force, fearless and unaware of retreat or escape, surged towards Sean once more!

With a grim expression, Sean had no choice but to raise his wand again.

"Avada Kedavra"

The deep green light shattered another part of the Obscurus. As the Obscurus increasingly frenzied, Sean's reason finally regained control over the violence.

"The Killing Curse's destructive power comes from the caster's malice. A Killing Curse without malice causes negligible damage, and the violence in my heart just happened to become the 'fuel' for the curse's power..."

Sean narrowed his eyes and looked at Obscurus. Although he didn't know whether this sudden outburst of violence stemmed from this guy or was the culmination of his own past experiences with violence, it seemed that this was the only outlet for his emotions...

Before the Obscurus and launch another attack, Sean cast the Killing Curse once more.

Obscurus, another portion of it dissipated, and Sean was overjoyed; the Killing Curse was indeed fueled by malice!

He could sense that the inexplicable violence was diminishing.

The crimson in Sean's eyes faded considerably, and he raised his wand once more.

After two Killing Curse, his eyes returned to their captivating pale blue, the negative emotions that had fueled the Killing Curse being completely dissipated.

The once terrifying and ferocious Obscurus reduced to a deep red core, its black, oily substance completely dispersed by Sean's spell.

"Phew..." Sean breathed a sigh of relief, holding his wand and cautiously approaching Obscurus.

The Obscurus should be able to be destroyed, but this creature that secretly crawled into my body seems quite resilient, even though it only has a core left.

Within this short period of time, particles resembling a black veil began to slowly seep out from the core.

Sean immediately cast a Stinging Hex, interrupting the Obscurus's revival process.

As Sean approached the core, he saw that it was surrounded by a transparent barrier resembling ripples of water, and the deep red core flickered rapidly, sometimes bright and sometimes dim.

"How did this thing get inside my body?" Sean frowned.

The relationship between Obscurus and Obscurial is not one of cooperation, but rather one of complete parasitism. The uncontrollable Obscurus constantly harms the Obscurial themselves, and upon the death of Obscurial, the Obscurus dissipates.

This Obscurus was clearly the one Dumbledore had separated from Daisy, and Sean's own state didn't seem like that of someone being parasitized at all. On the contrary, Sean had a strange feeling about it.

This Obscurus was attracted by herself.

Sean had a guess about the world he was in now.

Is this the Magic Power Source? His appearance here is a projection of his soul.

Moody said that he had a strong aura of Dark Arts about him, but it was sometimes there and sometimes not, Obscurus that's how the Obscurial was drawn to him...

So the question is, how should I deal with this Obscurus?

Sean glanced at the red core in front of him with a headache. Black particles were beginning to seep out from it, indicating that it was starting to revive again.

"This is troublesome..." Sean cast two Stinging Hex in succession, but the core only trembled and showed no signs of being destroyed.

"A huge Magic Power Source... I'm really envious, but I can't use it..." Sean muttered in frustration.

As soon as the words were spoken, the last remaining red core of the Obscurus creature flickered twice. It stopped moving in its attempt to revive and instead slowly drifted toward Sean.

Before Sean could think, Obscurus shrank rapidly and then disappeared into mid-air.

"Where did you go..." Before he could finish speaking, Sean froze on the spot.

He could feel a vast but restrained force entering his body.

"This..." Sean raised his hand in surprise. He discovered that he could actually borrow a portion of the Obscurus's power?!

As if it were innate, he instantly understood how to use the power of the Obscurus.

Sean raised a hand, and a layer of black gauze seeped out from his hand. With a thought, the gauze became transparent.

He tried to push forward, and "Bang!" A tremendous force erupted, making a loud crash against the solid wall.

Air cannons...

However, after studying it for a while, Sean realized that this was all he could do at the moment. Obscurus had only borrowed a portion of his power from him, which seemed to be a compromise made because he couldn't defeat him but didn't want to be eliminated by him.

If he wants to control the Obscurus as freely as Aurelius, or even decompose, explode, and fly as freely as the Obscurus, he needs to establish a better cooperative relationship with the Obscurus.

In the dormitory, Sean came to his senses and glanced at his watch.

"A time flow rate of roughly one to one..." Sean muttered.

He looked at the full-length mirror again, his light blue eyes clear and bright.

Sean tried to summon the Obscurus in reality. He could still control that power perfectly, but it was much weaker. At the same time, a black substance was quietly spinning in a vortex at the very center of Sean's pupils.

Sean nodded silently. It seemed that in his own world, the intensity of magic would be greatly enhanced, not only for him but also for the power he used.

He now knew how to get in: all he had to do was stare into his pupils through the mirror and then activate the Obscurus's magic.

"But it's not very useful?" Sean scratched his head.

Unless someone else invades his soul like Riddle did.