Lost – Harry Potter/Avengers.
Harry James Potter swore as he ducked under the brilliant blue curse that Yaxley had cast at him, the spell striking the fountain and gouging a deep slash into the golden metal.
"STUPEFY!" he yelled, sending a beam of red light back at Yaxley and striking a random Wizard that the Death Eater summoned in the way of the charm. "STUPEFY! STUPEFY!" Harry continued as the crowd in front of him parted between the two duelling wizards.
"HARRY! We need to go!" Hermione's voice screamed over the crowd, making Harry glance over to see her and Ron fending off some Death Eaters of their own.
"GO HERMIONE!" Harry shouted as he jabbed his wand at the ground, causing the tiling to explode up so a second thrust of his wand could banish them at Yaxley, "PLAN B!" he added as he sent several stunning spells at the approaching Dark Wizards. As he heard the sound of Hermione and Ron disapparating away Harry flicked his wand before slashing it across his body with a shouted "GLACIUS TEMPESTA!"
Ice burst into existence around him as his magic leapt at his command, a vortex of swirling ice surrounding him as shards of ice deflected all incoming spells. Smirking as he felt the magic coating his body fading Harry raised his hand, eyeing the blue that was rapidly spreading across his skin before he twisted his wrist and thrust his empty palm forward, the violent blizzard surrounding him exploding forward and tearing through the ranks of the Death Eaters surging towards him. Rolling his neck to crack it, Harry snapped his fingers with a muttered "spegill", waving his hand down his body with an added "ósýnilega". Stepping backwards as his body faded into invisibility he nodded to the two doubles of him standing there with pink skin and determined looks on their faces as they turned to face the Dark Wizards who were barely managing to fight off his blizzard. Hesitating as he felt something resonating in his magic, Harry felt magic surging up before he could stop it and forcing him to vanish with a loud crack and an explosion of cold air.
Yelping as his magic dropped him rudely onto the hard metal surface Harry blinked up at the shocked man in front of him, the man's bright blue eyes wide as they stared at him intently. "Ow" Harry deadpanned as he stood up slowly, eyeing the man in front of him cautiously before faltering as he glanced around to find himself in a circular glass cell in the middle of a strange room, "Uh hi? Sorry to just drop by like this" he apologized sheepishly.
"It's not possible" the man exhaled slowly as he continued to stare at him.
"Actually it is. Magic" Harry countered. "Uh sorry" he repeated before raising his wand, "Obliviate" he murmured as he concentrated on the past couple of minutes like Hermione had taught him before twisting on the spot and apparating again, yelping once more as his magic bounced off the inside of the glass cell and he was thrown to the floor again.
"Do you really think I wouldn't have teleported out of here if I could have?" the man asked dryly, "This cell is warded against magic, I noticed that the moment I stepped foot into it".
"Wait. How do you know about magic?" Harry demanded as he forced himself to his feet, pointing his wand at the unimpressed black-haired man in front of him.
"Really?" the man asked with a disappointed look before his eyes drifted down to Harry's hand, making him stiffen as his eyes followed him to discover that his glamour hadn't come back up over his hand yet leaving his flesh still blue. "Drop it" the man ordered bluntly, "I want to see who you really are".
"Obliviate" Harry blurted, his wand tip flashing and the spell washing over the man who merely raised an eyebrow at him pointedly. "Oh... that's not good" Harry mumbled.
"I said. Drop your glamour" the man growled out, "If you do then so will I" he added with a knowing look.
Harry narrowed his eyes before glancing around the still empty room surrounding the cell, "Couldn't hurt" he mumbled before raising his hand and snapping his blue fingers, the blue flesh rushing down the rest of his body as he grew both up and out, all of his glamours falling at once and leaving him standing there with freezing cold blue flesh and red glowing eyes.
"How?" the man whispered as his blue eyes flared and the blue drained out of them leaving his eyes a heart-stopping piercing green, "Odin told me you were dead when I woke up. And Heimdall claimed that you and Lily were lost to his sight, that you were dead".
"Odin? Heim- What?" Harry blurted, stepping back as the man stepped forward, "What the hell are you talking about?" he demanded angrily.
"When that foul creature cast your Mortal Killing Curse on me my soul returned to Asgard" the man claimed with a lost expression on his face, "But you and Lily were only Human, you didn't have the Asgardian resistance to such black magic. I believed you both dead so I remained on Asgard and never returned to Midgard again, I couldn't bear go back to that world with both of you dead".
"Well I'm not" Harry pointed out dryly, "Stay back" he ordered as the man stepped forward again and he raised his wand once more.
The man just smirked at him and raised a hand, magic lashing out and knocking the wand from Harry's hand as it settled around the room. Glaring Harry threw himself to the side, whispering out "spegill" as he came up in a roll, two more doubles of himself coming up on either side of him that the man smirked at again as his own body shimmered with green light and two doubles stepped out of him.
"You can't best me Harkin, not with that pathetic Mortal Magic" the man corrected before he snapped his own finger, Harry's jaw dropping as the man's flesh turned blue and his eyes turned red to look just like Harry did. "Although now I know of my true heritage it makes sense that you're not of Asgardian blood" the man finished.
"Harkin? How did... Who are you?" Harry demanded dumbly as he considered shattering the glass so he could apparate to Hermione before remembering that the glass was warded against magic.
"I thought you were dead" the man whispered as he stepped forward again, his hands on Harry's cheeks before he could stop the man, the surprising warmth making Harry hesitate before pulling away.
"Who are you" Harry whispered back, his magic reaching out to brush against the man's which responded with a gentle caress that filled Harry's entire body with warmth.
"Loki of Asgard" the man introduced, "Your father".
The spell broken Harry jerked away from the man angrily, ignoring how the room temperature dropped as he forced his magic back into his core, "My father died to save my life" he snarled out as his wand slapped back into his hand, "I will not let you insult his good name".
"I am your father" 'Loki' corrected gently, "Odin banished me to Earth in the body of a child after I transfigured his clothes into a dress in a full court" he explained with a smirk "I was reborn on Earth as a Human Sorcerer named James Potter and only regained my memories upon my death".
"My father is dead" Harry growled slowly as his wand tip flared.
The man rolled his eyes and pointed his finger at Harry "faðerni próf" he cast simply, a beam of white light striking Harry in the chest.
"faðerni próf" Harry echoed as his entire body glowed white, "Paternity test" he translated, "Did you just cast a paternity spell on-" his words froze in his throat as the white glow moved off him to form two names backwards, facing towards Loki. The glowing 'Loki Odinson' constantly blurring and changing into as 'James Potter' before changing back while 'Lily Evans' remained static.
"That's not right" Loki snarled out darkly.
"Merlin's balls it's not" Harry snapped, "You're not James Potter!"
"I was" Loki dismissed as a wave of his hand changed him into the same figure Harry had seen countless times in the pictures in his photo album, "But I have never been Odin's son".
"Yes you have brother" a loud voice corrected slowly making both Harry and Loki turn to stare at the blond man opening the cell door. "Blood or not you were always father's son, my brother" the man who could only be Thor explained with a soft smile as the door opened and he stepped into the cell, the man turned to stare at Harry before his face split into a grin so wide it must have hurt, "And now I have a nephew!" he boomed without warning as he bounced over to pick Harry up in a bone-breaking hug as he spun him around excitedly.
Tapping into his magic instinctively Harry apparated away, landing next to the glass wall so the wards wouldn't repel him, "Oh Merlin I am so lost it isn't funny" he murmured under his breath as the unfazed Thor picked Loki up in an equally painful hug while demanding to know how many 'cycles' worth of presents he needed to buy.
"You and me both kid" a voice replied making Harry yelp as he spun to face the red and gold robot standing next to the window, "Hi Tony Stark" the robot introduced as Harry's eyes flicked to the man who he instantly recognized as Captain America.
"Where am I?" Harry asked slowly as he eyed the other costume wearing people and the scowling black man in the leather trench-coat and eye patch.
"America" the tired looking man with black curls replied simply.
"Oh" Harry blurted as he blinked slowly "Wow I am lost aren't I?"
LOST
So this one isn't actually a response to some challenge or another, it's just an idea I wrote when my sister challenged me to write a one-shot about Loki.
Remember to leave a review if you liked this idea and make sure to follow this story, more ideas are sure to come!