AN: I don't own either HP or Marvel.

Tony's left arm was still numb as he walked into the Raft prison office, flanked by guards in black armor, wielding rifles. He could hear the roar of the waves hitting the prison walls, the dim sounds of seagulls circling the roof of the prison. It was otherwise quiet and it made Tony shiver, setting him on edge from the get go.

"You think you can talk Wilson into giving Rogers up?" Senator Ross asked as they walked over the landing dock and into the offices. "Rogers and Barnes both?"

Tony nodded, taking a breath that he would deny was shaky. "I can try, Ross. Don't suppose you'd be willing to back off for a few minutes and give me time?"

"No."

Tony shrugged as he looked over the wall of cameras, video of the captives in the prison. He spotted Wanda, Sam, Clint and Scott Lang, all in the same block, as well as a camera that was facing one cell. Just one cell that was towards the back of the block, one that had a steel door with multiple locks over it.

"You have another Hulk in there that I should know about?" Tony asked idly, letting the fingers of his right hand trace over the screens and monitors. "Or is it the so called Abomination? You still keeping him a secret?"

"Mr Stark, that is not why you're here," Ross argued, crossing his arms. "You are here because I am letting you talk to Wilson to find information on Rogers. No more."

"You sure?" Tony asked, letting his fingers fall underneath the counter in front of him to stick a bug to the metal. Ross didn't even seem to notice his sleight of hand, just glaring at him more. That cell and those multiple locks drew his gaze again and he squinted, trying to see anything that indicated a name or number. He could see at least one initial written on the door's tag, seeing Potter, H and startling at the sight. His blood roared in his ears, echoing loudly. He reached his right hand over the small of his back, right where those three letters were, feeling sweat drip down his back under his suit.

It couldn't be, could it?

But… Tony swore under his breath and turned back to the cameras, his eyes narrowing on Sam's cell. "There's no torture going on here, is there?"

Ross lifted an eyebrow. "The US doesn't torture its prisoners, Anthony. I'm sure you know that."

Tony nodded absentmindedly, wishing that he had Jarvis with him. "Yeah, I'm already calling bullshit on that, for the record. Let me go talk to Wilson."

"No funny business, Stark."

"Yeah, yeah. I'm not going to do anything that's gonna make these guys more skittish than they already are," Tony muttered, eying the various highly armed men around him as he turned and headed out to take the elevator down.

As soon as he got to the level that his former teammates were on, he strode out, whistling quietly. He pulled out his phone and glanced at it, thumbing through some programs and tapping on the one he wanted. He was already in the wifi that the prison had and he could see a list of the prisoners that were here.

He looked around at the cells in front of him, seeing Wanda in a straight jacket, Clint staring at the cell wall across from him, and Sam walking up to the cell doors. Tony's eyes were drawn to the cell that was down the hall from his former team for a moment before he focused on Sam.

"Siberia. He's headed to Siberia," Wilson finally said, sucking in a sharp breath.

Tony nodded and thanked him, making sure to ask about treatment of prisoners here later. Now he needed to get to Siberia to make sure Cap didn't do anything stupid. And maybe make sure Roger's information was actually accurate. He had already seen that the guy sent to interrogate Barnes was a fraud and that the man who had was… someone who was gunning for them all.

He stopped in the hallway briefly, pausing to look at the last cell down the way. It couldn't be his soulmate in there. It just couldn't. His father hadn't thought well of soulmates, thinking they were fake, that there was nothing to it. His mother though… thought that they were the end all of happily ever afters. Howard and Maria had been soulmates but their relationship hadn't been… a happy one. Tony had been quite sure of that ever since he could see that his father had been a bastard. His aunt Peggy had had a soulmate though and she had been very happy with her's.

Edwin and Anna Jarvis had been soulmates. They had tried to tell Tony that it would be worth it, that having the other part of your soul was not something easily describable. That the first touch of your soulmate was wonderful. Howard had grimaced when 12 year old Tony had repeated those words to him and then told him that soulmates were a waste of time.

His mother had cupped a hand to her mouth to hide a delighted smile the moment that the initials HJP had appeared on his back. Howard had… Tony flinched and then took a step towards the cell door, trying to catch a glimpse of the man inside the cell. Of course the thought of his potential soulmate being in prison was a little worrying though. And it didn't… Just because the name on that tag was two out of the three letters on his back didn't mean that the person in there was his soulmate.

He was about to walk away, about to turn his back when he caught a glimpse of the brightest green eyes he had ever seen. Green eyes, a peculiar looking scar and messy black hair.

Steve knocked out the last soldier in the office and didn't even spare a last glance at the moaning men on the floor as he stepped into the lift that would take him down. He stayed quiet even as the elevator opened and drove an elbow into the guard on duty, hearing the man's nose break. He spun and kicked out at another advancing soldier, seeing the guy land on his ass.

After taking out three more guys easily and stepping into the light around the cells in front of him, he met Sam's grin with one of his own. Clint too grinned as he saw him, banging on Wanda's cell to grab her attention. Wanda's eyes lit up, making her whole face glow faintly red with power. Steve smiled and drove his fist into the control panel between the cells, seeing the electronics spark and fizzle out.

The doors opened and Sam, Wanda, Scott and Clint all walked out, smiling wearily.

"Hey, Cap," Sam remarked, his eyes drawn to where Steve's shield usually sat. "What happened with Stark?"

Clint strode over to Wanda's side and helped her get the straight jacket off. Wanda sucked in a tight breath and ripped the jacket off as soon as the restraints were off, color coming back into her face. Her fingertips glowed with red energy, matching her reddish glowing eyes.

"It's a long story," Steve answered, gesturing up to the top of the prison. "We should go."

"You have a place?" Clint asked, throwing the jacket far, far away from Wanda's side.

Wanda nodded in agreement and opened her mouth to say something when a tremor ran through her frame. Steve looked at her in question, worry unfurling in the pit of his stomach.

"What is it?"

"There's something…" Wanda trailed off, her red magic pooling at her fingertips.

An explosion rippled through the air and Steve saw Wanda swear under her breath, her eyes narrowing.

The cell door behind them, in the hallway that Steve had noted, was thrown off, buckling apart into several great big pieces. Smoke and dust flooded the air and a few drops of water inched onto the floor around them, reminding Steve that they were in fact under water. He could see the darkness of the night through the one window in the wall across from him and then…

A man walked out from the cell, alone, his bright green eyes sharp and lethal as they flashed with anger. The scar on his forehead was faint but still visible, not covered at all by any dark hair. The guy was in the same prison clothes as the others had been but there was something about…

Wanda gasped as the prison clothes instantly vanished, changing right into what looked like some kind of armor. Some kind of scaly armor that curled tight about the man's body immediately, covering his legs, chest and arms.

"What… Who are you?" Wanda asked, raising her hands up defensively.

The guy snorted at her words, didn't even pay her any attention as he strode right up to Steve. His green eyes stared right at Steve and for a minute, it felt like something was tickling his brain-

"What do you want?" Steve questioned, glaring at the man and taking a step forward threateningly. He was well aware that Clint didn't have his bow and arrows, that Sam wasn't armed, that Scott didn't have his suit.

The man just stared at him like he was seeing through him, seeing… "The fuck did you do to him?"

"What?"

The guy lifted an eyebrow and crossed his arms idly, rocking back on the heels of his feet. His face had gone pale but the menacing air about him was still there. Wanda stepped forward to stand at his side and he could see red at her fingertips.

"You left him," the guy stated, his lips twisting in disgust. His British accent stood out in the accusation and Steve tilted his head curiously. "You just left him there. Steve Rogers, Captain America. Left a teammate behind."

Steve flinched but stayed right where he was. "You're a witch."

The guy scowled and swore under his breath in a language that Steve was not familiar with. It sounded hissy, almost like a snake, and then shadows curled the guy's shoulders.

"I'm nothing like her," the guy retorted darkly, as his eyes took on a dark tint, as a cloak draped itself around his shoulders. "I really should be going. Places to be, people to possibly kill."

"Why were you in prison?" Steve asked faintly, wondering why the man cared and how he knew.

"Where's that shield of yours anyway?" The guy continued like Steve hadn't spoken, even as a broom materialized in his left hand. Goggles were draped over it and Steve watched as the guy turned to the side, flicking a hand.

The wall across from them blew wide open and pieces of metal flew every which way. Water trickled in and Scott inhaled sharply.

"I don't need it anymore."

The guy looked at him, sparing one last glance at him, before mounting the broomstick and flipping on the goggles. "Tell Barnes I wish him luck. I just have one question for you."

"What?" Clint asked, his fingers clenching and curling into fists. His voice was just a little shaky in the face of magic, of unknown magic.

"What is Tony Stark's full name?"

"Why do you care about him?" Clint questioned, grimacing. "Stark doesn't care about us. He doesn't care about you."

"If he doesn't care about you, then why'd I hear him say something about making sure you guys were treated well? If he doesn't care then why was he making sure Wilson here knew that Rhodes was okay? Whoever Rhodes is? And if he didn't care, then why did Stark look like shit when I saw him?"

"His name's Anthony Edward Stark," Wanda spat, her eyes now fully glowing red with her power.

The guy swore again and immediately took to the air, was about to clearly speed off when red power swooped around him.

"Wanda!" Steve exclaimed, relaxing his stance a little, getting ready to-

The man on the broom froze and then turned around, shadows curling into little abysses of black in his eyes. The grin on his face was just this much shy of feral. "You are nothing like me, little witch."

With a flick of his fingers, the red power around him vanished in a second and Wanda gasped like she'd been hit in the gut. She bent over backwards, sucking in frantic gulps of air and lashed out again, red magic flowing only to hit a wall. A glowing blue wall that erupted into place around the man.

"I have no time for this, Rogers. If the Wakandans can't erase the trigger words for your friend, I can," the man offered before flipping up his right hand, showing his bare wrist to them. His bare wrist and the three letters that were there in a flowing script. AES. He sped off in the next moment, going from 0 to 60 in mere seconds, and disappearing.

Tony sucked in another mouthful of air, flinching when his ribs protested at the movement again. His whole body ached and it was starting to snow and the arc reactor light was… The suit's electronics were fried and he couldn't…

The sight of the shield just set his heart racing again and he scuttled back like a crab, flinching bodily as he heard footsteps echo. The suit wasn't… wouldn't open around him and he was trapped. Trapped in his own suit of armor and… He couldn't even touch his mark. He knew… He gasped as his legs buckled and he fell back down to the snow dusted floor of the bunker, seeing the light of the sun finally rise up on the horizon.

"Friday…"

He didn't even recognize his own voice, dry and hoarse, and Tony was… He shivered more violently this time, the tremors making his nerves flare with pain. It was like there was fire racing up his chest, making everything hurt. The headache that had started to gather grew worse and drums banged louder in his head as…

"Jarvis…"

The footsteps grew louder and finally stopped. Tony froze even though the pain was making him want to curl up in a ball and making his vision grey out with exhaustion. He tried to claw his way out of the armor but he couldn't move, couldn't get his fingers in position to… He cried out, feeling tears pool in his eyes and dribble down his cheeks, reddening with embarrassment even now. With a loud snap and hiss, the armor opened up and Tony gasped out loud, yelping as his ribs…

He looked out into bright green eyes and stilled even more as a wrist was thrust into his vision. A wrist that looked bare and normal and… "Why…"

Another hand slipped itself around his neck and lifted him up and out, gentle and warm and… He groaned as a cloak was draped over his shoulders, fingers draping it over him.

"AES. Anthony Edward Stark. My name is Harry James Potter."

Tony froze like someone had plugged him into an outlet, electricity shooting through him, his blood roaring in his ears, and then shook his head. "No. No… You've…"

His heart beat so quickly that he thought it might leap out of his chest. "You… You were… in prison. Fuck, that… hurts."

"Easy, Tony. No rapid movements, darling. I got you. Come on."

Tony looked up into those bright green eyes, his eyes flicking to the strange looking broomstick next to the man, just lying on the floor idly. Like the man had dropped it as soon as he had seen Tony. What had he been doing? Was the guy the long lost janitor of the bunker? Was he here to kill him? But no. He had seen him… He had seen him somewhere and the concussion was making it hard to think and...

"I'm not… I'm not worth it."

The man's… Harry's face paled even more than it had before. "Tony… I broke out of prison for you. For my soulmate. Of course you're worth it."

Tony flinched and tried to hide his face in the cloak, in the man's warm chest even as he felt his cheeks warm. Even he could hear the slight possessive tone underneath the man's words.

"Talk later then, shadow guy," Tony muttered, yawning as his heart skipped a beat. Hey, maybe that wasn't a good thing after all. His heart skipped another beat and he wanted to… He could feel his heart race awkwardly in his chest, skipping several beats.

"Hey! Hey, Tony! No closing your eyes! Hey, come on. Oh fuck. Don't you dare leave me. Not now."

Tony woke up slowly, wearily, blinking his eyes once, twice, before taking in the sight of his room at the Avengers facility. The sun was shining through the windows across from him and the beeps that he expected to hear weren't beeping. He wasn't in a hospital and he wasn't…

"Am I dead?"

"No. I'm pretty sure you aren't. I'm a damn good healer, despite my occasional appearance."

Tony jolted in bed and he quickly turned to look beside him, to where a guy sat in a chair. A guy who… He felt his cheeks warm and he curled his fingers into the bedsheets beneath him as memories flooded back.

"Are you really…" Tony paused and swallowed on a dry throat.

The guy… Harry James Potter. His… Harry looked at him with soft eyes before reaching around to a counter behind him to pour a glass of water. He handed it over a moment later and helped Tony sit up, his arms coming around him slowly, giving him enough time to back off. Tony shivered at the heat radiating off the man's skin and sat up against the pillows behind him, taking a slow sip of water. He had learned that much after Afghanistan.

Harry nodded and extended his right arm, showing Tony that his wrist. AES. Tony sucked in a breath before slowly turning around, pulling up the shirt he was wearing, different than the one he had on yesterday, and baring his back. Hesitantly, feeling goosebumps roll up his arms.

He heard Harry suck in a tight gasp and it was quiet for a few minutes as Harry stared at the mark.

"May I touch it?" Harry finally asked quietly, his voice shaky.

Tony nodded, fingers curling tighter into the sheet. Harry's fingers came to rest lightly on his back, soft and slow and… Heat jolted through him as he felt those fingers touch his mark, like electricity shooting through him. He heard Harry's breath hitch too, loud in the sudden quiet.

Harry's fingers smoothed over his skin and then tapped his shoulder. "Here. You can touch my mark too."

Tony shivered again at the gentle direction, at Harry knowing… knowing that Tony needed to touch the counterpart of his mark. He let his shirt fall down and turned around, facing Harry again and pulling Harry's right wrist towards him. The three letters that spelled out their connection lay inconspicuously right beneath Harry's palm, solid and steady, like Tony's mark.

And Harry froze as Tony touched the tattooed letters, his eyes widening.

"What are you?" Tony finally asked, tilting his head in thought. He remembered… wings and shadows and… hearing the desperation in Harry's voice when he thought Tony was dying.

"I'm a wizard."

"Really."

Harry's lips twitched in amusement, meeting Tony's eyes easily. "Yeah. You wanna take a vacation, Anthony Stark? Come see my world?"

"Is this where you whisk me away on your flying carpet?" Tony asked, half suspiciously, half unsure if this was… If this was real. His heart skipped several beats, something hot curling in his stomach. He had had fans that had tattooed his initials on their body before.

"Please, I don't have a flying carpet. A broomstick, yeah. But carpet… This is real," Harry remarked, glancing down to where Tony still had a hold of his wrist. "You're not dreaming and you're not dead."

"I… I don't know. I have shit to take care of and…"

Harry stared at him and reached out, telegraphing his movements and cupped his chin. Tony let out a choked noise and leaned into those warm fingers, definitely not giving a shit about the silhouette of black wings that he could see sprouting from Harry's back. No, no, definitely not. Rogers…

"Friday, tell Pepper that I found my soulmate."

Harry grinned, his eyes lighting up as he stood up.

"Why did you break out of prison anyway? How did you.." Tony trailed off at Harry's amused look. "What?"

"You know what they say about floating prisons."

Tony lifted an eyebrow.

Harry snorted and shook his head. "I don't know what people say about floating prisons but it's probably nothing good. Come on. Let me show you the world."

Tony laughed and took Harry's outstretched hand.

AN: Finally a soulmate AU where Harry's the one in prison! Hehe.