Boom!
Just as Hell's Core fell into a stalemate, the door was blasted open by a wave of cold air, and Silver Fullbuster walked in.
This time, Lamy's expression finally changed.
She realized that she might be in trouble. Silver Fullbuster might release the other members of the Nine Demon Gates, and then she would suffer badly.
However, what surprised Lamy was that the faces of the other Nine Demon Gates inside the cultivation tanks had become even uglier than hers!
"Silver... you bastard!"
Franmalth began cursing loudly.
Silver Fullbuster remained unmoved and walked straight inside.
Behind him, Marco's figure appeared as well, also stepping in while turning his head to examine Hell's Core.
The entire Hell's Core was actually a laboratory.
This was a demon modification chamber.
It could not only resurrect these demons, but also modify them.
It could even turn humans into demons.
A pile of tanks and cultivation vessels were arranged inside this laboratory, and the seven dead members of the Nine Demon Gates were inside them.
"As expected, your 'King of the Underworld' isn't here?"
Marco had already discovered that Mard Geer was not with these members of the Nine Demon Gates.
Clearly, he had another revival location.
This so-called resurrection power had also been arranged by Mard Geer.
"Th-this handsome man! Who is he?! Is he a new member of our guild too?!"
At this moment, Lamy, who had been timid after seeing Silver Fullbuster arrive, began acting up again.
She looked at Marco, her entire demonic self seeming to fall completely.
Lamy liked handsome men and did not like women.
Whenever she saw a handsome man, she could no longer move.
And the Marco who had appeared now had clearly stolen all her attention.
"Who is this?"
Marco looked toward Silver Fullbuster and asked with a strange expression.
"She is also a demon, specifically responsible for regeneration and modification. From the look of it, she's acting up again and hasn't been doing her job properly."
Seeing Lamy like this, the corner of Silver Fullbuster's mouth twitched as well.
As one of the Nine Demon Gates, he actually did not really understand why Lamy had been allowed to handle regeneration and modification.
This girl truly could cause trouble!
Of course, Lamy was indeed good at this.
But whether she was good at it or not did not seem that important.
Being able to honestly perform one's duties was the most important thing.
They could have found another demon and made that demon learn it if they were not good at it.
That would still have been far more reliable than Lamy.
Besides, Lamy's "talent" did not seem to have brought any good results.
This girl even dared to randomly alter the appearances of demons she handled during resurrection.
It was simply reckless behavior.
The only reason Silver Fullbuster could think of for letting Lamy do this was that Mard Geer had done it deliberately, deliberately disgusting them.
After all, this had no effect on Mard Geer himself. It only made the others suffer.
"This one is a little different."
Marco looked carefully at Lamy.
With a sweep of his X-ray vision, he saw through this demon's essence directly.
This girl was a "group," not an independent and unique individual.
There were many beings exactly like her.
There were other Lamys on Underworld Island as well, all serving the island.
Demons truly had all kinds of abilities. There were all types among them.
For example, with this Lamy, if one wanted to eliminate her, one had to eliminate every individual. Otherwise, more Lamys would appear in the future.
"..."
Lamy's expression finally changed.
She realized that something was wrong.
This man did not seem to be on their side.
Moreover, he was currently considering how to completely kill her.
"Lamy is innocent! Lamy is only a worker on this island!"
Lamy immediately raised both hands, crouched on the ground, and shouted loudly, looking pitiful, as though she had been forced to come here and was an innocent hostage.
"..."
Marco was speechless.
He casually chopped out with a hand blade.
Lamy reacted quickly and immediately tried to defend.
She had some experience dealing with these kinds of indirect physical attacks. Her ability was suited for handling them and could slide them away directly.
However, the protective barrier Lamy created did not play any role.
It was directly torn apart by the sword energy Marco slashed out, and Lamy's body was also cut in half by the same strike.
"..."
Inside Hell's Core, the members of the Nine Demon Gates within the cultivation tanks all fell silent.
At this moment, they had already lost their own power.
All they had were temporary shells and souls that had been hastily pieced together.
Revival also required time.
It was not a matter of simply wanting to live and then living. A greater price had to be paid, and it might even leave their souls incomplete.
In reality, even if they spent more time reviving, it would still damage them. Losing some memories was one outward manifestation of that.
No wonder Keyes had insisted on trying to escape instead of sacrificing himself for the other demons.
Demons were not kindhearted men and women in the first place.
If Keyes could really sacrifice the self to save the whole, then he would not be a demon
He might as well become a Buddha on the spot!
"We meet again. Seeing all of you here puts me at ease."
Looking at the members of the Nine Demon Gates, Marco smiled and mocked them.
Without waiting for these demons to react, Marco instructed Silver Fullbuster to guard this place while he began searching for Mard Geer's location.
He could not allow that guy to run.
Wearing the Aries Gold Cloth and using his X-ray vision, Marco moved freely through Underworld Island and quickly locked onto Mard Geer's position.
It could only be said that Mard Geer had no intention of hiding.
The place where he revived was on the throne in a hall within Underworld Island. It could not have been more conspicuous.
Perhaps he had never imagined Underworld Island would be invaded, nor had he imagined that he would be beaten to the point of needing resurrection.
Marco stepped into the hall and looked toward the throne.
A book was floating there, rising and falling, constantly changing.
One moment, it was a book. The next, it was human-shaped.
Then it shifted again into a demonic form.
Zeref's demons, Tartaros, also known as Zeref's Bookshelf—these demons were all created by Zeref, and their true bodies were books like this, Books of Zeref.
They became different demons because the contents inside were different.
It had to be said that Zeref was indeed a magical genius.
The things he created were not something ordinary people could understand.
Things like the Eclipse Gate, the R-System, and these Demon Books were all more absurd than the last.
"So this book really is Natsu's true body."
Looking at the old yellowed Book of E.N.D. in his hand, Marco was momentarily speechless.
Natsu's background was actually this complicated?
As expected of the protagonist.
Marco determined in his heart that Natsu should be the number one protagonist of Fairy Tail.
Gray's background had now been completely revealed, and compared to Natsu, it was nowhere near as dramatic.
It was simply that he had Silver Fullbuster, who knew Ice Devil Slayer Magic.
Lucy's background no longer held any mystery either.
The background of Mirajane's family was even clearer. Their parents had passed away, and everything could be traced.
The only one who still had some mystery left was probably Erza.
"Erza's background clearly has more to it. Her origins definitely aren't simple."
Marco had no doubt about that.
After all, Erza was also abnormally strong.
Of course, he could not rule out a genetic mutation.
Mirajane and Juvia were both "awakened" from non-mage families.
But if Erza were the same, then there would be no need for her background to be made so mysterious, to the point that nothing could be found at all.