Sisters?!

'What's going on here?'

Arkhan furrowed his brow, momentarily doubtful as he saw the dumbfounded Melusine.

However, he quickly shook his head, pushing aside his doubts, his gaze turning cold and determined.

Whatever trickery this dragon was up to, he wouldn't miss this once-in-a-lifetime opportunity!

A torrent of magical energy surged from his dragon heart like an endless river, fiery flames spreading along the Cleaver of Shamash's blade. Meanwhile, the other greatsword, a replica created by the Void Archives, also ignited with golden flames, the two distinct fires complementing each other and emanating a terrifying aura.

Nidhogg raised its rugged neck, black flames leaking from its menacing jaws, ready to launch an attack at any moment.

Just as Arkhan was about to make a decisive move to deal with Melusine, something entirely unexpected happened.

The glowing symbols on her dragon body dimmed rapidly like extinguishing candles, the massive flow of magical energy slowly receding, and her violently beating heart quickly calmed down.

She actually voluntarily halted the release of her all-out attack!

'What the fuck is happening?'

Now Arkhan was completely dumbfounded.

He refused to believe that this dragon did this out of fear of his strength. Judging by the aura of determination emanating from her just now, it was obvious that she intended to perish together with him.

'What made this dragon suddenly change her mind?'

As Arkhan pondered, a strand of mental energy suddenly emanated from Melusine.

Arkhan hesitated for a moment but ultimately chose to connect with this strand of mental energy. With Fenghuang Down in hand, he wasn't afraid of any tricks she might pull.

"Why were you able to summon Nidhogg?! What's your relationship with her?!"

Melusine's youthful and crisp voice echoed in his mind, tinged with an inexplicable impatience and urgency.

"You know Nidhogg?" Arkhan's eyes showed a hint of surprise.

"I know every pure-blooded dragon in the world!" Melusine replied resolutely.

'What the hell?' Arkhan was in disbelief.

The history of dragons could be traced back to before the Age of Gods, so how could she possibly know every dragon?

However, Arkhan didn't dwell too much on this issue and responded calmly.

"She is my wife."

"Wife?!" Melusine's voice suddenly rose, filled with intense disbelief. "How is that possible? How could a dragon be with a human—"

As she said that, she suddenly paused, fell silent for a moment, then muttered softly to herself.

"No... this is indeed the only possibility... If it weren't for the bond of marriage, she couldn't have been summoned by you... I should have thought of it earlier. With your high purity of dragon blood, you must have obtained Nidhogg's permission. Otherwise, you would have died long ago."

Upon hearing that, Arkhan looked slightly surprised, not expecting her to guess the truth so easily.

Indeed, when Uther and Merlin created him, it was because of Nidhogg's power going out of control that led to his death just after being born. If it weren't for Abyss Flower, he would have been truly dead long ago.

Later, through negotiation, he successfully made a deal with Nidhogg, awakening the black dragon blood within him. But at that time, his relationship with Nidhogg was not so close. His awakening largely succeeded because of this so-called deal, where she urgently wanted him to help her retrieve her body.

Understanding the truth of the matter, Melusine felt relieved, but then a nameless anger rose within her.

"Since your relationship with Nidhogg is so close, why didn't you tell me earlier?!" Melusine grumbled impatiently.

Hearing her nonsense, Arkhan furrowed his brows slightly and asked back.

"No... in the first place, why should I tell you?"

Melusine froze and hesitated for a moment.

He was right, why should he tell her? She was the one who started this fight in the first place.

Realizing this, Melusine couldn't help feeling embarrassed.

"I... I'm sorry. I didn't know the situation beforehand... If I had known earlier about your relationship with Nidhogg, I would never have attacked you... Can you forgive me?" Melusine said with an embarrassed tone.

Hearing her apology, Arkhan finally caught on to something.

'Is her sudden change in attitude because of Nid? Does this black dragon know Nid?'

Thinking like that, Arkhan didn't hesitate and directly asked the question in his mind.

"What's your relationship with Nidhogg?"

"What relationship?" Melusine hesitated for a moment before answering. "If we're being strict, Nidhogg and I should belong to the same bloodline, descending from a common ancestor. According to human social norms, we should be... sisters?"

'Sisters?! What the hell?' Arkhan felt as if he'd been struck by lightning, a hint of bewilderment in his gaze.

However, he quickly shook his head and his tone turned somewhat stern.

"Do you think I'm a fool? Nidhogg is the dragon created by the world rules to end the Age of Gods of Norse. How could she possibly have sisters?"

"That's right, Nidhogg is indeed the dragon created by the world rules to end the Age of Gods of Norse." Melusine praised his statement, but then she quickly asked. "But have you ever thought about who Nidhogg's prototype is?"

Upon hearing that sudden question, Arkhan was speechless. Even Nidhogg herself didn't know about this matter, how could he know?

He hesitated for a moment and hesitantly asked.

"You're not saying..."

"Nidhogg's prototype is the first dragon born in the world—Albion." Melusine explained lightly. "You see, I am a remnant limb left by Albion before its death. So from the perspective of lineage, both Nidhogg and I are descendants of Albion. So, in human social norms, we're no different than sisters, right?"

"Albion..." Arkhan furrowed his brows slightly, having some understanding of this legendary oldest dragon.

Some of it came from his past life, while some came from Scathach's knowledge.

Albion was the first pure-blooded dragon born at the beginning of the world and also the last pure-blooded dragon to exist after the Age of Gods ended. Of course, even the oldest dragon couldn't defy the will of nature and inevitably met its end.

Just as the death of a whale brings forth a new ecosystem, the fall of Albion left behind countless precious treasures.

Since ancient times, countless mages have sought the burial place of Albion, but ultimately to no avail.

It wasn't until later that someone discovered a massive underground labyrinth in Britain, on the outskirts of London, and found numerous rare materials, such as dragon scales, teeth, and the corpses of young hydras, which were almost impossible to find on the surface.

After careful examination, the mages finally determined that this was the burial place of the oldest dragon and named it the Spiritual Tomb of Albion.

Following that, the mages swore to share this precious treasure.

As time passed, the landscape changed, and centuries later, the mages relied on this treasure trove to establish an organization called the Clock Tower as the first branch and headquarters of the Mage's Association and, with its rich resources, became the largest and most powerful organization in the world of magecraft.

Even at this time, the Spiritual Tomb of Albion had not been fully excavated.

This was mainly because the tomb served as a physical passage connecting the Reverse Side of the World, filled with various mysteries and dangers, making excavation extremely difficult.

The furthest position the Clock Tower had been able to explore was almost sixty to eighty kilometers underground in the tomb. According to scholars' estimates, the depth of the entire tomb was almost four hundred kilometers.

Just the remains of one creature alone could support a massive mage organization, showcasing the incredible power of the first and last dragon, Albion.