AN: I'm modeling the hybrid on the underworld movies and adding my own twists. I've gotten about half of this already written so I'll post chapters every other day until this is done.

Prologue

"Imperio!"

Harry jolted and felt the spell take affect as his muscles loosened and his shoulders drooped. He no longer was aware of the Death Eaters spaced in a loose circle around him or that Lord Voldemort was staring at him with vicious glee. They were in large, circular room standing around the veil as there was no one else to challenge them in the Ministry. He no longer wanted to escape or to fight or really to do anything. Though really, he had lost the will to fight long before now; loosing Ginny, Ron and Hermione been the icing on the cake.

"Wormtail, let in our guests."

"But my Lord, won't it kill him?"

"That was my plan," Voldemort hissed out, standing up in a rather menacing movement.

Harry watched as Pettigrew walked past the death eaters and opened a door on the far side of the room. He watched as shimmering blue shields were erected around the circle, protecting the Death Eaters as a werewolf charged in. He watched dispassionately, unmoving, as the wolf collided with him, throwing him onto his back. Growling ferociously and drool coming out of its' mouth, it placed its' mouth right over his left arm. In the next moment, Harry heard quiet footsteps approaching him but when he tried to move, the imperius curse stopped him in his tracks.

He screamed as the wolf bit into his arm savagely, tearing a chunk out of his arm. His magic finally found the will to fight back as whoever was approaching him knelt beside him and brought his right arm up to his or her mouth and bit into it as well. He tossed and turned, trying to buck the wolf off but he realized the wolf had disappeared. It was just him and whatever the person was doing to him. He started to get light headed at the loss of blood, feeling himself begin to shiver as well.

"Young one, be still. It will hurt less."

Harry stiffened and his magic went wild, kicking off the imperius curse and trying to crawl backwards. But the man's hold was too strong, pinning him in place.

"Drink."

The last thing Harry saw was one of the man's arms coming up to hover over his mouth, drops of red liquid falling down.

"Well, here goes nothing," Harry muttered, gripping his wand and trunk in his hands. He stared at the veil, hearing the whispers of death; he hadn't been able to hear anything back in fifth year. Now he could and it weirded him out. Though he supposed that being an enemy/guinea pig for Voldemort had made it possible. He still had scars from both the rogue werewolf and the vampire lord that Voldemort had brought in to 'see' him. One scar from the werewolf and one from the vampire, adding to the lighting bolt scar on his forehead. And likely none of them would ever fade now; now that his healing capabilities were about the kind that a god would have... or something.

Though, he still didn't know if he himself was in one piece. He was still adjusting to being both a werewolf and a vampire. He didn't know if there were any other hybrids around but he didn't think so. The vampire that had given him his blood had taken him out of there, using what he had called, 'shadow travel'. The other creature hadn't given Harry his name but had taught him all he had known and then had fled.

In fact, the vampire had mentally shoved all of what he knew to Harry; now he knew how to properly make potions, how to track prey, how to not kill someone when he was drinking from them and many other skills.

And last night, Harry had gone right up to Voldemort's lair and killed him and his Death Eaters then and there. Now he was gunning for an escape route through the veil. Anywhere would be better than in this world, where the only friends he had were dead. Where the muggles, most of the muggles, were starting to get an idea about how powerful the wizards were and building better weapons.

Now, he craved blood and was able to transform into a werewolf without relying on the full moon. A rarity, he supposed, as he had never heard of werewolves being able to shift on days that were not the full moon. Harry had never heard of a person that was both a werewolf and vampire before but apparently, with him it had worked.

He stepped through the veil after putting both the elder wand and his shrunken trunk in a pocket. Harry expected anything but what he saw on the other side as he slogged through black mist and came out on the other side. He had thought that he had would have a hard time getting through the veil but he didn't.

He landed on a balcony of some sort and just stood there, gaping at everything. This was obviously a muggle city as it had skyscrapers and there was no wizarding feature in sight. He turned around when he felt something poke his back, though it didn't feel like a wand.

Harry came face to face with a guy that kind of looked like him, black hair, blue eyes and some kind of armor on. The guy was staring at him with no little confusion though as Harry stared, the guy sneered at him.

"You are one of the Avengers, no doubt. I can't have my plans disrupted this early. I have no need of another mortal too."

Harry continued to stare, peeking past the guy then fixing his gaze back on the guy. There was a big contraption of some kind on the far side of the balcony and Harry didn't even know what it was. There was another man hovering around it, fixing it up or something.

"Avengers? What?! Where the fuck did I land?"

The man that was holding the staff stared at him, smirked then poked Harry in the chest with said staff.

"Whoa!" Harry exclaimed, holding out his arms as he was pushed to the edge of the balcony. "Is everyone like this? Trying to kill each other? If so, I'm totally leaving. Well-"

"Annoying," the guy remarked and then poked Harry off the edge.

Wind screamed around him as Harry fell and fell fast. He pinwheeled his body so that he could see where he would end up and promptly regretted it. Whatever tower this was was very high up. He glanced down at his t-shirt and sighed, pulling on the vampire half of himself and extending his wings. They immediately came out, tearing his shirt but for once, luck was on his side. They caught air, jolting him painfully out of the fall, and he came to a hover, black bat wings out and beating quickly.

"No one pushes me off the side of a building and gets away with it," Harry muttered, feeling his eyes go red, not with hunger or arousal but with anger. He caught his breath for a minute then winged his way back up to the balcony, seeing the letters on the side of the tower. "Hmm, wonder who this Stark guy is."

"For Merlin's sake, you don't go just pushing people off buildings," Harry remarked loudly as he hovered on top of the balcony. The guy with the staff was overseeing the contraption but when he heard Harry, he turned around.

Harry crossed his arms and glared at the guy, as his jaw dropped.

"Yeah, that's what I thought," Harry said, still hovering in the sky.

The guy stared then brought up the staff and discharged some blue energy. Harry quickly dodged it, moving a few inches to the left. The guy stiffened and pointed the staff again and pulling out a dagger.

"Okay, this is certainly getting boring," Harry murmured, eyeing the guy then turning around to stare at the horizon. As much as he would like to get out of there, he didn't know where to go. Maybe this guy, once he stopped trying to kill Harry, would answer a few questions. Then he would see about getting some food, or to be more precise, blood.

The minute that the dagger dug into his shoulder, Harry growled, turned around, beat his wings furiously and plowed into the other guy. The momentum brought them careening through glass and right up against a wall. Harry brought his arm up to the guy's throat, squeezing a little. The staff clattered to the ground, a pronounced thunk once it hit the floor. Harry's wings fluttered agitatedly against his back then he kicked the staff away, simultaneously pulling the dagger out. The wound gushed blood for a minute then immediately started to close, skin knitting together.

The guy's blue eyes widened as he tried to struggle out of Harry's hold. "What are you?"

Harry could see and smell fear coming off the guy in waves. "What are you?"

The guy tilted his head and was about to answer when they heard a noise coming from the balcony. Harry kept his arm against the guy and turned to look outside, his eyes losing their red glow. There was what looked like a robot, hovering in the air over the contraption which had apparently been turned on. The robot was red and yellow and it was shaped like a human was.

Harry turned back to the guy, considering. "If I let you go, will you stop trying to kill me?"

The guy nodded hesitantly and when Harry reluctantly pulled away, brought his hand up to his throat and rubbed. Harry studied the guy, taking a discrete sniff and committing it to memory. He stared at the guy's eyes, feeling a hint of something come to mind. The guy's eyes were blue but they were also rather glazed, a little? Like the guy was in pain or something and not even paying attention to his hypothetical wound...

"What... who are you?"

"I'm Harry Potter, nice to meet you. And you are?"

"I am Loki, of Asgard."

Harry raised an eyebrow as his thoughts ran over all he had seen of the guy. "Of Asgard? Is that... a planet or something?"

"A realm," Loki replied, studying Harry as much as he was studying Loki.

"Oh!" Harry exclaimed, finally remembering what he had been trying to remember. "Now I... You're eyes aren't usually blue, are they?"

Loki stared at him. "What are you talking about? My eyes are green."

Harry shook his head, conjuring a mirror behind his back. "Not right now they aren't."

He held out the mirror to the guy, letting him take it. He wandered over to where they had collided into the glass wall and was about to spell it back when he saw the robot come to hover over him.

"Who the hell are you?"

Harry stared and rolled his eyes. "Who are you?"

The robot looking thing stared then seemed to look up to the sky. Harry stepped over the glass and peered up into the sky to gape at the sight. There was a big portal thing in the sky and lots of grey... aliens(for lack of a better word) were coming through it.

"There wouldn't be another guy in there with you, would there?"

Harry glanced over to the robot again then turned to look at Loki, his wings coming up to hide him for a minute. Loki had fallen down onto his bottom against the wall and was staring at him, shaking his head. Harry stared at him then pulled out his invisibility cloak and floated it over to the guy, letting it gently fall around him.

He turned back to the robot guy, now sure that there was someone in the suit or whatever it was called. "No, it's only me."

"Well, dammit. There's an army coming, kid, if you want to help us out," The guy said then turned on his jets and flew upward. "I figure if you've got wings then you're not so human."

"An army?" Harry repeated then frowned. "I'm not a kid!"

He sighed and tucked his wings back against his back and strode over to crouch in front of Loki.

"You want some help?" Harry murmured.

"I... you have magic, do you not?" Loki asked, staring at him with an intent gaze.

"Yep, among other things," Harry replied, wings unfurling and covering the both of them.

"My own has been dampened by this," Loki said, gesturing to the staff where it lay discarded on the floor. "I don't know how to remove its' influence."

Harry glanced at the staff then back at Loki. "You would trust me with this? You only just met me. And tried to kill me, might I add."

Loki stared at him, eyes drifting to his wings then back to his eyes. "You are the only Midgardian I have found with magic that is similar to mine."

"BROTHER!"

Harry jumped, his wings pulling him up into the air momentarily. He turned to look down at Loki, whose face had gone pale. Harry sighed and grasped his cloak, drawing it over Loki completely. The man vanished from view, though Harry could still smell him and hear Loki's fast heartbeat.

"Stay there until I come back for you, okay? You're safe here."

Harry stood up, brushed off a little dust and strode over to the balcony and watched as a tall man flew up and landed on the balcony. The man was swinging a hammer, wearing armor and a red cloak that was twitching in the wind.

Harry cleared his throat politely and the guy turned around, raising his hammer.

"You are not Loki."

"No, I'm Harry."

The man kind of looked crestfallen for a minute but then flew into the air again, going to attack...

"What in the world is that?" Harry exclaimed as a big giant thing flew through the air. It had the look of the aliens but it was like a snake. "I suppose I should help. It seems like I'm here for good. But first things first."

Harry walked back over to sit on the floor across from Loki, lifting the cloak from where it was.

"Ready? I'll make sure this won't hurt."

Loki nodded hesitantly.

"I'm going to need skin contact for this to work," Harry remarked, frowning a little.

Loki held out a hand towards him and Harry reached out his own to grasp it, pulling his own magic to mingle with the other man's magic. Together, they searched out any magic that was coming from the staff or any magic that wasn't their own.

It took roughly fifteen minutes but Harry and Loki both succeeded in destroying any foreign magic. The blue energy from the staff fought back for a few minutes before being pushed out.

When they were done, Harry pulled back a little, turning to glance out of the wall of windows. There were still grey creatures that looked creepy and more than a little ugly.

"So, these are aliens, right? Because if these creatures are standard for this world, I am getting the hell out of here."

Though he didn't think he could even actually travel between worlds again. This world probably didn't have a veil or the equivalent.

It took a minute or two but eventually Loki replied.

"Are you not from Midgard?"

Harry turned back around only to raise an eyebrow. "Midgard? What?"

"The world of mortals," Loki remarked, turning to glance outside and grimacing. "I had not intended for this to happen."

Harry narrowed his eyes. "So that would be a 'no, these aren't standard issue'?"

"No. I brought these Chitauri here to aid in my conquering of this world," Loki remarked. "However, I now think that this was not my idea."

Harry jumped at the loud roar that was heard, his wings extending out behind him. He sighed and stood up, going over to look out at the cityscape. The aliens were out in force in front of them and if he looked down at the streets, he could see a giant green creature in the middle of one of them.

"You wanna go mess with their minds and fight on their side?" Harry asked, turning around to glance at no one apparently. Loki had vanished, leaving the cloak folded on a chair. "Oh, well. At least, he left my cloak. And his staff..."

Harry strode over to the chair, picked up his cloak and tucked it into his pocket.

"Sir, if I may ask, are you going to fight with the Avengers?"

Harry didn't want to say he jumped but he kind of did and hovered in the air, wand out and searching.

"Who said that?"

"I am Jarvis, Tony Stark's AI."

Harry was still more than a little confused but the voice seemed to be coming from the ceiling so he glanced up that way.

"What's an AI?"

"Artificial Intelligence."

Harry nodded. "Like a computer then?"

"I am much more than a computer."

Harry snorted; it sounded like the AI had been a little insulted at Harry saying he was 'just' a computer.

"Okay then. Though in answer to your question, I suppose I could help out," Harry remarked. "I don't know how to tell them I'm not an enemy though. They probably have comms or something."

"If you will follow the red light, I will direct you to a comlink."

Harry followed the light as it directed him to where the bar was in this penthouse. A drawer opened and Jarvis directed him to which piece of technology he should grab. He put it behind his ear, clicking it on. He heard static then voices; one was the person in the suit he had seen thirty minutes ago but the others were unfamiliar.

"Jarvis, who's who?" He asked, directing his voice to the ceiling and not to the com.

"The green creature is the Hulk. My creator is the one who you first saw, Tony Stark. The man in the star-spangled uniform-"

"The star-spangled uniform?" Harry repeated, grinning a little. "I take it, those are not your own words?"

"No, they are thankfully not my own words. The man in the uniform is Steve Rogers, Captain America. The woman fighting with them is Natasha Romanoff or the Black Widow. The archer in the group is Clint Barton, Hawkeye, and Thor is the god with the hammer."

"Thanks. Is it okay if I leave my trunk here?" Harry asked distractedly, watching as more and more aliens came down from the portal thing in the sky. "Wait, god? There are gods here?"

"You have a trunk with you?"

"Yeah, it's just..." Harry pulled his trunk out of his pocket, resizing it and placing it on the floor. It contained what was left of his life: his broom, books, a continuous, unlimited supply of potion ingredients(Magic, it turned out, was in fact an entity; an entity that protected her chosen. He just happened to be one of her chosen), clothes, etc.

"Of course you can leave it here. I will make sure no one takes anything from it."

Harry grinned. "It's impossible for anyone else other than me to open it. At least, it will be in this world."

"Alright, if that's everything, let me go help the Avengers or whatever they're called."

Harry stepped out onto the balcony again, noting the unconscious man, then stepped off the edge, wings out and beginning to beat.

The minute that he spoke through the comms, the Avengers were nothing but suspicious of him.

"Who's the new guy?"

"What... Stark, do you know anything about him?"

"Uh, guys, I see something in the air."

"Clint, those would be the aliens."

"Thanks for that, Nat. It's definitely not an alien though. It... has wings, for one thing."

"Wings?"

"Yeah, wings. Big black ones."

"That would be the guy I saw in my tower then," Tony finally broke in.

"Yep, that's me," Harry replied. "I came to help."

"What are you?"

As Harry descended, all of the alien things, Chitauri, if he had heard Loki correctly, were staring at him. Rather ominous really but as he had had worse experiences, he wasn't particularly creeped out.

The group of Avengers were staring at him too, even the Hulk was.

Harry stared at them all, taking in each person. They were all attractive people as far as he could see. But whether or not to trust them with his story...

"I'm just someone who can help," Harry commented. "I figured, if I have the skills, why the hell not?"

He saw Steve Rogers incline his head at him and he nodded back.

"What's your name then?" Natasha asked, her hand on her pistol.

"Harry Potter."

"So, do we have a plan or something?"

"What are you best at?" Rogers asked as they all stared at him and his wings. Harry willed his wings back into his body and felt as they disappeared. Tony Stark gaped and Clint's jaw dropped.

"If I say magic, what would you say back?"

"You know how to perform magic?" Thor questioned, stepping forward.

Harry nodded slowly. "Yes."

"Then you can help us wherever you can," Steve said as they all readied for battle.

"Well, that certainly was a work out," Harry remarked, breathing heavily, as he stood over Tony Stark. Steve Rogers was beside him, as was Thor and the Hulk. There were Chitauri corpses all around them, having keeled over a while after Tony had flown the nuke through the portal.

Harry had long since pulled his wings back in and just cast spell after spell toward the aliens.

"We are not finished yet," Thor said. "We have to find my brother."

Tony groaned, having stayed lying on the ground since the Hulk had roared at him.

"I hate to break it to you, Thor," Harry started. "But I think Loki's flown the coop."

"Is that a Midgardian phrase?" Thor asked, staring at him then at Tony.

"It means he's gone," Tony said. "Jarvis can't see him either."

"I agree with Potter," Natasha said through the comms. "I have not seen Loki since the helicarrier."

"Plus, his magical signature isn't showing up on my radar," Harry commented.

"His magical signature?" Steve asked, turning to look at him.

"Yeah, each wizard has their own unique signature," Harry explained. "It's the same everywhere I suppose. I have one."

"So those blasts coming from you were magic?" Steve enquired, eyes a little wide.

"Yep."

"Hey, could someone come and get me?" Clint asked over the comms. "I'm a little... injured here."

"Define a little, Clint," Natasha said sternly but there was more than a little worry in her voice.

"Oh, I just swung through a thick glass window and landed on shards," Clint replied shakily.

"I can go get him," Harry answered, again pulling out his wings and starting to beat them. "Hold on, Barton."

Steve and Thor backed up while Tony had moved to a sitting position. They were all staring at him, even Bruce as he changed back.

"Mr. Potter, wou-"

Harry sighed, closed his eyes for a minute then opened them. "I'm going to stop you right there and say no."

Nick Fury stared at him, a small frown on his face. "You don't even know what I was about to ask you."

"Probably something along the lines of inviting me to join SHIELD, whatever SHIELD is?" Harry asked as he heard the door open. Hopefully this little meeting would go quickly; he was kind of hungry and not for people food. Fighting off an alien invasion was extremely exhausting. The Avengers, as far as Harry knew, were getting ready to go eat at a diner or something. Tony had said something about shawarma though Harry hadn't been too sure about what kind of food it was.

Fury sighed. "Yes. You are quite the individual. SHIELD would be glad to have someone of your abilities. SHIELD stands for Strategic Homeland Intervention, Enforcement and Logistics Division."

"And I told you no," Harry remarked steadily. "I want nothing to do with a government agency."

"You could be a consultant then," Fury said, reeking of curiosity. "You wouldn't be an official agent, just someone I would call in on a case by case basis."

Harry gave a considering noise, feeling his stomach start to growl.

Fury raised an eyebrow at him but apparently didn't feel like commenting on his stomach.

"I'll think about it," Harry replied, standing up. "But don't expect me to do it. I need to see what this world has to offer."

"This world?" Fury repeated, frowning.

AN: Happy Summer!