Fortunately, with his Mental Fortitude, this surprise didn't shake him.
High-density green flames were launched from the Giant Skeleton's mouth, covering a wide area of 8 meters.
Luis' spell was almost ready.
Just when the flames were about to devour him. Luis used Spatial Jump and vanished, dodging the flames with a hair's breadth and then appeared in mid-air directly in front of the giant monster. Then with a wave of his hand, he launched the most powerful Thunder Javelin he had prepared until now.
A Thunder Javelin condensed with a high-density lightning element and 90% of Luis' mana shot like a bullet and blasted the ribcage of the Giant Skeleton, making a gaping hole in the middle.
It was an attack surpassing all of Luis' previous spells. Ensuring far more damage than all his previous attacks.
The Giant Skeleton fell to the ground with a loud bang. But Luis had no way to confirm whether it was defeated or not.
Luis lay on the ground with burn marks all over his body. It seemed that he didn't manage to escape the flames completely and suffered some damage.
'I don't have any mana left.' Luis felt his entire body was numb. He couldn't even feel the pain of the burns at this moment.
Slowly, he moved his hand and activated his mana bracelet to take out a high-grade mana potion from inside.
He didn't even have enough mana to open his Pocket Space.
*Augh*
*Gulp* *Gulp*
As he poured the mana potion into his mouth and gulp down the cold liquid entering his mouth. He felt his mana recover. He noticed that the burns on his body had started recovering automatically. Maybe it was the effect of his Enhanced Recovery skill.
But he had no time to delve into this matter. As his mind was preoccupied with another thought.
'Did I finish him in time?'
Yes, Luis was concerned whether he managed to defeat the Giant Skeleton within 5 minutes time frame.
Then he heard the mysterious voice say,
{Congratulations! You have passed the third test [Challenger].}
{You have fulfilled the condition 'Defeat the Giant Skeleton'.}
{You can now receive the Ghost King's Legacy.}
A moment later, another green light fell from the sky and in front of him floated a mysterious necklace.
"What is this?"
Although Luis had some idea about the necklace from the game, he still decided to ask. Who knows if there are changes here too?
{This is the necklace of the almighty Darkenes, the Ghost King. It was helpful to him throughout his journey. It was called Akasha's Necklace. He obtained it after defeating Akasha, the undead king of Ramet.}
*Phew*
'So, nothing's changed.' Luis sighed inwardly. 'As long as this artifact is the same, that's fine.'
"Just tell me its specifications."
{...}
With a pause, the voice continued.
{This artifact nourishes the spirit and mana of the wearer. Gather mana from the surroundings, helpful with mana breathing, and mana recovery. Feeding the artifact with ghost energy can provide high-quality mana and help in refining the wearer's mana core. Helpful at the time of breakthroughs.}
Luis knew that the voice was only telling him about general information and not the exact data. He wanted to ask, but it seems he didn't have the opportunity.
{Hope you can challenge all the legacy pieces and become the final legacy inheritor [Challenger].}
"Excuse me?" Luis called out, but received no response.
'It seems I can't get any answers.' Luis looked at the Akasha's necklace in hand and smiled, 'If its specs are the same as in the game, then it will be helpful in my growth.'
Luis knew this necklace was an absolute treasure for him. Making a strong foundation would be smoother. Moreover, he was barely suppressing himself from breaking through to F- Rank.
He didn't wear the necklace as that will make him break through directly, which he didn't want to do at the moment. As he won't get the maximum gain if he does that.
'Let's go home first.'
Thinking of this, Luis walked up to the bones of the Giant Skeleton and saw the artwork he made from his last spell.
Looking around, he finally found what he was looking for.
"There it is." Luis' lips curved upward into a smile.
At the center of the Giant Skeleton's broken rib cage, he found a dark green orb, the size of his fist, and it looked like the most beautiful carved dark emerald.
It was the core of the Giant Skeleton. Full of highly condensed ghost energy of a D-rank monster.
Luis immediately put it inside his Pocket Space. 'Although, I can't use it now. It will be useful in my breakthrough for the later rank.'
He noticed that the barrier has been lifted, as he walked out of the arena, which was now in ruins. He found Alicia and Lumine standing there with dumbfounded expressions on their beautiful faces.
"Hey guys," Luis waved at them with a charming smile.
But Lumine didn't seem to hear him as she mumbled something.
"My son defeated a D-rank monster."
Yeah, she was still having a hard time believing. Although she knew Luis was talented and she was always proud of him. But his performance just now shocked her that much.
Alicia, on the other hand, looked at Luis with indescribable shock. To be said that both of them are in the same rank and have great talents, but the power which Luis demonstrated was far beyond their level.
She didn't feel any jealousy or inferiority towards him. Instead, there was a sense of ecstasy. After all, it was her fiance. Not wanting to be left behind, she was very enthusiastic about working hard. She strived to show that she was capable of standing beside him and not be an encumbrance to him.
Unbeknownst to Alicia, her feelings toward Luis were becoming stronger. But she didn't care about all that. As she saw Luis coming towards them, she smiled and said cheerfully, "You crushed him."
Hearing her chirping voice, Luis shrugged and said, "That should be obvious."
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A.N.- Finally the dungeon expedition is over. Now only some events are left before the end of the first volume.