Special Crossover
A golden portal suddenly burst open in the middle of a busy street in London, crackling like liquid fire and spinning with an arcane hum.
Several youthsranging from eleven to sixteen years oldstepped through the vortex with steady strides and confused expressions, cautiously surveying their surroundings. They wore backpacks, light armor, cloaks worn by battle, and weapons strapped to their backs. They looked like they had walked straight out of a medieval legend… which made every passerby stare at them, some with curiosity, others with fear.
Metal carriagesmodern carsscreeched to a halt, swerving and crashing into poles with cables that shuddered from the impact.
"Where are we?" asked Blaise seriously, scanning the towering houses, lamp posts, glowing signs, and urban murmur. Everything around him felt strangely foreign.
"Is this the world our father was sent to?" Avento asked, turning in place with a flicker of curiosity in his eyes. The city looked futuristic… at least to them.
"I'll use the clairvoyance spell," Avento said calmly, activating a seal on his left hand. But the spell immediately dissipateddisintegrated by the mana-less atmosphere.
"Bah… whatever. I'm still hungry. And they never gave me my cheese back," Lucía complained, rubbing her stomach with a pained expression.
"Alright. Let's find something to eat," said Runa, effortlessly taking the lead.
They strolled calmly down the sidewalk, ignoring the incredulous stares of the muggles, who either whispered nervously or crossed the street to avoid them altogether.
But before they could get far, two figures emerged from the crowd. One began subtly waving a wand, erasing memories swiftly. The other marched straight toward the group, brows furrowed and hostility barely contained.
"You there! How dare you use magic in front of muggles? Follow me immediately!" barked the man, wand in hand, glaring at their clothes and weapons with evident disdain.
"Ah? What language is that?" murmured Avento, puzzled. "I don't recognize it."
"Drop your weapons and raise your hands!" the man shouted, his tone meant to sound authoritativethough his mana was so faint it was barely perceptible.
Sofie tilted her head. "Is that… a stick?"
"Why is he so annoying? We just wanted lunch," grumbled Lucía.
"Maybe they're not very welcoming to foreigners," Lars said with a mocking smile, eyeing the man.
"Whatever… Let's ignore him. I don't know what he's saying and he's not a threat," Blaise added, having already sensed the pitiful energy the man gave off.
As they turned to leave, the wizard growled, "Insolent mudbloods! Petrificus Totalus!"
A blue light shot from his wand toward Sofie… but one of the staves in her backpack moved on its own. A fireball burst out in response, colliding with the spell and vaporizing it mid-air. Sofie held the staff beneath her, face completely serious.
"Did that guy just attack us?" asked Blaise, turning around, eyes narrowing with the look of someone who had just decided another's fate.
The wizard backed away, stunned. How could they counter a spell without even looking?
"So you resist! Don't blame me for what happens next"
He didn't finish.
A sharp pain, hot and sudden, tore through his side. Then he saw ithis own arm hitting the pavement. His wand rolled alongside his severed hand. A scream of agony tore from his throat.
The one who had done it stood right next to him: Runa. Her black outfit melted into the shadows, her red dagger dripping with blood.
"H-how dare you?! I'm from the house of"
A clean slash across the throat silenced him forever.
Runa calmly wiped her blade. No one attacked her siblings. Especially not from behind.
Around them, the mugglesno longer under the memory spellscreamed and fled in panic.
"This is getting messy," said Avento, clapping his hands together. A massive spell exploded from his palmsa magic pulse that instantly froze every muggle in place.
In quick succession, he cast illusions, calm, fear, courage… and finally, sleep.
When the paralysis wore off, every muggle collapsed to the ground, sound asleep as if nothing had happened.
"Warn us next time, idiot!" shouted Blaise, just regaining control of his body.
"There was no time. We don't need more trouble with the guards," Avento replied coolly.
"Well. Can we eat now?" said Lucía, exasperated.
Runa snapped her fingers, incinerating the body to ash without ceremony. Then, they all walked off as if nothing had happened.
…
They were strolling down a quieter street when a sharp gaze stopped them. A black-haired boy was watching them with interest as he walked alongside his mother… and another girl his age, who observed the group with a furrowed brow.
"You're wizards, right? If you dress like that in the muggle world, you'll attract way more attention than you think," said the brunette girlHermione Grangerwith a critical tone.
"Hmm? Sofie and Avento are the spellcasters. I'm not good with that. It's easier to use my hammer," said Lucía, pulling the massive weapon off her back. The metallic clank drew everyone's attention. She accidentally let go, and the hammer slammed into the pavement, cracking it.
"Oops."
"Whoa! Is it really that heavy?" Harry asked, eyes wide.
Lucía offered him the handle. "I don't let many people touch it. It was a gift from my dad… but you seem nice."
Harry tried to lift it, but could barely move it a few inches. His face turned red from effort.
"Ahahaha! Looks like you've got a lot of training to do before you're as strong as me," Lucía said proudly, hefting the hammer up with ease.
Behind him, Wandahis motherwatched in complete silence.
She said nothing… but the siblings all felt it.
That instinct. That primal warning that screamed danger. They couldn't sense mana in her. No aura. Nothing. Like a bottomless void.
But they all knew, without a doubt… this woman was dangerous.
Lucía, oblivious to the tension, said cheerfully:
"So… are you guys wizards?"
"Yes. Well, we're still learning and waiting to get into Hogwarts, but that's a couple years off," Harry answered with a smile.
"Only Avento and Sofie cast spells. The rest of us fight with weaponsthough we know a few spells too," Lucía explained calmly, like it was the most natural thing in the world.
"So… it seems the magical world isn't the only one that exists," Hermione murmured thoughtfully, almost in a whisper.
"Hey, do you guys know where we can get something to eat? After being tricked by a crazy prince, we ended up in what we think is heaven… and we still haven't eaten," complained Lucía, placing a hand on her stomach.
"Well… we're standing right in front of the Leaky Cauldron," Harry pointed out, gesturing toward an old, rundown entrance with a hanging sign creaking in the wind.
Lucía hadn't realized until that moment that she was speaking naturally with the two children. It only just occurred to her that they weren't speaking the same language… and yet, they understood each other perfectly. Of course, the others had noticed this from the beginning.
"Great! We can eat!" Lucía exclaimed, turning to her siblings. But when she saw their serious expressions, she frowned. "What is it?"
"Idiot. You're speaking with people who speak another language and didn't even notice. That woman might be an archmage," said Avento seriously, not taking his eyes off Wanda.
"So what? Dad's an archmage too. And the Dragonborn. And… he has lots of titles I don't remember," Lucía replied casually.
"…She's right," Sofie said with a sigh, her shoulders relaxing. "Just because someone strong shows up doesn't mean they're our enemy," she added.
"Habit," murmured Lars as he released the two swords crossed on his back, easing his stance.
"Mum, are you an archmage?" Harry asked with wide eyes, turning to Wanda, who replied with a calm smile.
"I don't know. Maybe that's how someone's power is measured in another world," Wanda said, before turning her gaze directly to the young visitors.
"Wow! You seem powerful, you can tell just by looking… We're from… what was our world called again? I just know we live in Whiterun," said Lucía, frowning.
"Idiot. It's Nirn, also known as Mundus. It's located in Aurbis, between the planes of Aetherius and Oblivion," Avento explained with total seriousness, sharing details no one there could understand.
"Brainiac," Lucía teased with a cheeky grin.
"Since she's so powerful… does she know where our father is? He's the Dragonborn. His name is Einar," Sofie asked with hope, looking at Wanda.
"I'm sorry. Being strong doesn't mean I know everyone," the woman replied gently.
"That sucks," Sofie murmured, a little disappointed. But she quickly perked up. "Then we'll just have to find him."
"But after we eat!" Lucía interrupted, raising her hand like it was the most urgent matter.
Wanda watched them with interest as they all entered the Leaky Cauldron. Harry seemed fascinated by the gear they carried, so with a glance of permission from Wanda, he followed them inside as well.
…
"Is it true that in your world, there are dragons running around and you have to fight them… even without magic?" Harry asked excitedly, sitting at the table with them while eating a steaming plate of stew.
"Yeah. But the war with them ended after our father killed many. And defeated their leader… the World-Eater," Lucía said proudly, as if it were just another story.
"Worlds can be eaten?" Harry asked, astonished.
"I wonder that too," Lucía replied with complete sincerity.
Hermione, sitting beside Harry, listened intently. Though still a bit skepticalafter all, they didn't seem old enough to have lived through such adventureswhat they said was so incredible, she couldn't stop paying attention.
While everyone ate, Wanda sat a short distance away, watching her son with a soft smile. Seeing him so happy and excited brought her peace.
Suddenly, a loud noise interrupted the conversation. The door behind the bar slammed open, and several dozen men entered the place. Leading them was the same wizard who had erased the Muggles' memories that one time. He had vanished the moment his partner lost an arm, without seeing what had really happened. But when he returned to the scene later, he found strange seeds and scorched ground where his friend had been… and immediately went to inform his family.
"You… are you the ones who attacked my son? Where is he?" the man asked, glaring with contempt at the children, who kept eating like nothing had happened. He was a man in his forties, wearing high-end robes, bald, with a noticeable scar on his cheek, a weathered face, and a hard stare.
Behind him came his followersor perhaps employees.
Wanda, of course, had placed a spell on the visitors so they could communicate, which is why Harry could understand them perfectly.
"Hmm? Your son? Who was that?" Blaise asked with curiosity, raising an eyebrow.
"The one who tried to stop them in the street," said the fallen wizard's companion, clearly upset.
"Oh. That guy who attacked us… I killed him," Runa answered with complete calm, not stopping her meal or showing any concern.
Wanda tensed slightly, her hand subtly aimed at Harry and Hermione, ready to intervene.
"Fine. Very well. Arrogant brats… follow us," the wizard ordered in a grave voice.
"We're eating," Lucía replied, annoyed.
"I don't care. Come now, or I'll kill you right here. If you follow me, at least you'll live a bit longer," he threatened coldly.
But before he could take another step, something strange happened: he felt himself floating… no, rather, it was his head that floated.
Everyone in the Leaky Cauldron widened their eyes in horror as the wizard's head flew through the air, rolling across the floor like a fallen melon. His men drew their wands immediately, looking around for the culprit.
And then they saw her: the oldest of the group, a blonde girl, who vanished before their eyes only to reappear right among them. She moved as if swimming through shadows, invisible at times, her arms vanishing in a blur of speed.
When she returned to her seat, she was holding two black daggers, gleaming with fresh blood.
"Aaah! No fair! Dad taught you a Shout!" Lucía cried out, full of envy.
The people couldn't grasp what had just happened, until one by one, the men who had surrounded the children began to collapse. Each of them had a single, precise woundstraight to the heart.
Hermione and Harry remained frozen in their seats, completely in shock. Wanda approached calmly, extended both hands toward their heads, and with a soft red glow, the two of them fell asleep. When they awoke, they wouldn't remember anything that had just happened.
"You should leave this place," Wanda said calmly, looking at the kids. "Your world might be different… but here it's annoying when you kill someone in front of so many witnesses."
She wouldn't judge them. After all, she was far from a saint herself.
Then she picked up Harry and Hermione in her arms. A scarlet aura surrounded them, and they vanished, as the memory of all three was erased from everyone present.
And before the other children could say anything, a golden light enveloped each of them. They were thrown through a portal that opened suddenlycreated by a god-dragon annoyed that someone had interfered in his earlier transport… just for a joke. And it was obvious who the culprit had been.
In the Cauldron, everyone remained frozen, unsure how to react to what had just occurred.
From that day on, a legend began to spread:
"Never mess with a wizard who wields a sword."