Title: Protection Detail

Disclaimer: This story is based on characters and situations created and owned by J.K Rowling, various publishers including but not limited to Warner Bros, Bloomsbury. No money is being made and no copyright or trademark infringement is intended.

Warnings: language, implied slash

Chapter 1

It was really only a few months after Loki had invaded New York. Things had mostly been calm for Natasha and the rest of the Avengers, well, what they now thought of as calm after stopping an alien invasion. There had been a few Loki wannabe's who had attacked different members of the team as they went about the city, some slightly odder than normal criminals who they had been called in to deal with, and that one time in north Washington that no one wanted to talk about.

They were all living in Stark tower, or Avengers tower as they now called it. Banner had been taken home by Stark immediately, after he realised that the man had no where to stay, except for perhaps his place in Calcutta, that Stark had declared, "not fit for a super-hero, let alone a saviour of the world". Rogers had been next. He had also had no where to stay, but it had taken him some time to get over his pride and ask Stark if he could move in. It probably didn't help that most of the S.H.I.E.L.D. agents came up to him on a daily basis to ask for his autograph, an opportunity to spar with him, or an invitation into his bed. Thor had taken Loki back to Asgard, but had come back only a month later, in a thunderstorm of epic proportions, pissed off at something, but refusing to talk about it. They still didn't know what was wrong, but it seemed like he had mostly gotten over it. Natasha and Clint had been the last to move in. They had been dropping in more and more frequently to visit one or all members of the team, and one day, when they had arrived, Stark had told them that he had allocated them both a room and that J.A.R.V.I.S. would let them in whenever they arrived.

Fury wasn't officially aware that the entire team had moved into one building, but there were few things that the man missed, and this was unlikely to be one of them. He had even started to call J.A.R.V.I.S whenever he wanted to contact any of the Avengers.

The team (mainly Stark) had decided that they would go out for dinner to celebrate Thor's birthday. It wasn't really his birthday, but the Asgardian and Earth calendars didn't exactly match up, so Stark had chosen a day and declared it Thor's birthday. Banner had managed to rein in Stark's enthusiasm, so they hadn't ended up in some swanky restaurant with those tiny portions marooned in massive white plates. Natasha was sure that if this had happened, they would have had to order the entire menu to satisfy the appetites of Thor, Rogers and Clint combined. They had instead gone to an out of the way Italian restaurant with serving sizes of epic proportions, and while that had gotten some sideways glances from the other diners, and a couple of sneakily (so they thought) taken photo's, it had been a mostly peaceful night.

They had all slowly made their way back to the tower, deciding to walk as it was only a couple of blocks. Stark and Rogers were bickering again, while Clint was explaining the things that Thor pointed out, with Banner jumping in occasionally to help. Natasha had walked slightly behind them all, looking out for possible threats, because, well, someone had to.

They had all piled into the lift, chattering and laughing, when J.A.R.V.I.S. had spoken up,

"Sir, there appears to be someone in the penthouse."

Silence had filled the elevator for a moment, before Stark had spoken up,

"Pardon J.A.R.V.I.S., I must of misheard you. I swear you just said that there was someone in my tower, and I didn't know about it until now."

"He had some way of blocking me from contacting you, and so I had to wait until you entered the building, sir"

All the members of the team stiffened at this, immediately falling into battle-mode, prepared for anything.

"How did he get in J.A.R.V.I.S.? What is he doing now?" Rogers asked.

"He isn't doing anything at the moment, just sitting on a couch drinking water out a bottle he brought with him. As for how he got in… " If J.A.R.V.I.S. wasn't a robot, then Natasha would have sworn that he sounded slightly confused "… I'm not exactly sure, there is a glitch in my memory, one minute he isn't there, then I essentially black out, and when I come back, there he is. I am not sure how he did it, but I was only out for a maximum of a minute, so he should not have had enough time to get in."

The team all exchanged wary glances. They would have talked, except the lift arrived at the top floor and they all piled out, all eyes immediately going the person sitting on the couch, facing away from them, spreading out to give him no option of escape.

They stood there for a moment, Natasha categorising his features. Black hair, green eyes, short, fairly young, odd scar on his forehead. This last observation brought Natasha up short, and in the second since she had first laid eyes on the man she recognised who he was, and looked over at Clint, whose panicked eyes met hers.

There sitting on Starks couch was the most dangerous man alive. Harry Potter.

~o0o~

Harry sat on the couch patiently, quietly amused as he considered the tizzy that the Avengers must all be in in the elevator as they were informed by Tony Stark's AI that there was someone in his apartment. He was looking forward to this meeting. He had spent the last few years off the grid, so to speak, residing solely in the Wizarding World, and now that he had re-entered the Muggle World, there was someone he needed to talk to .

The lift opened and the team spread out. Tall, blond Steve Rogers, who had survived seventy years in a giant ice cube. Handsome and wealthy Tony Stark, who was only kept alive by a piece of machinery in his chest. Calm, quiet Bruce Banner, who really should have died from exposure to that much gamma radiation. Thor, the Asgardian hammer-wielding demi-god and of course the two S.H.I.E.L.D agents, Clint Barton and Natasha Romanoff who were at the moment staring at each other in panic, clearly recognising him.

Romanoff and Barton pulled them selves together remarkably quickly, before Romanoff announced

"Don't attack him. We need to call Fury."

"Don't attack him? Why the hell not. He is sitting on my couch, in my apartment. I have the best security system in the world. I'll attack him if I fucking want to." Stark burst out.

"As much as I hate to say it, I agree with Tony. We don't know what he is doing here. We should apprehend him and question him." Rogers spoke with an tone of voice Harry was intimately familiar with, that of a leader expecting everyone to listen to him and do what he said.

"That wouldn't be a good idea. We wouldn't win." This time Barton tried to be the voice of reason.

"Wouldn't win? Why not." At Banners enquiry Harry snorted.

He smiled widely as the team turned to face him, not expecting him to have made a sound. "Six on one isn't the worst odds I have been up against. And I'm not dead yet. You haven't got a hope of beating me."

"Yeah right." Stark scoffed. "We are literally super heroes and we have a god on our side. You're clearly delusional."

Everyone in the room turned to face Thor who had been oddly silent throughout the confrontation. The team's eyes widened as they saw him standing stiffly, clearly having some sort of internal conflict, although they had no idea what about.

Harry spoke up, "There is no point in trying to fight it Son of Odin, you couldn't before and you can't now."

Thor snarled, and glared at Harry before taking three jerky steps toward him. He lay Mjolnir down on the ground, before falling to his knee's and, taking Harry's hand, kissing the air above his ring.

Harry stood with a mocking smile on his face, looking at the rest of the team who were staring in shock, savouring the moment for slightly longer than was necessary before informing Thor that he could rise.

Thor stood up swiftly, picking up his hammer and crossing to the other side of the room, glaring.

"What the FUCK was that?" Stark practically shouted, crossing over to stand in front of Harry, ignoring the two S.H.I.E.L.D. agents in the room who tried to hold him back.

"What makes you think I'm going to tell you. Ask your teammate if you want to know."

"Just leave it Stark. Mr Potter, may I ask you what you are doing her. "

Harry smiled thinly at Agent Romanoff, "Make the call to your boss that you so desperately want to make. Tell him I want to talk."

Romanoff, without turning away from him, pulled out her phone and pressed a button, bringing the phone up to her ear.

"Sir. Something… unexpected has happened…. Mr Potter is sitting in Stark's living room… Yes sir…. I don't know sir… yes sir… it doesn't look like he is going anywhere… We can wait sir… yes sir… good bye.

"He will be here in an hour."

"That's all well and good, but I want to know what that thing was before. Want to enlighten us big guy?"

"I will not tell you. It is shameful."

"Shameful?" Harry's voice asked "Nothing shameful in following your magic's instincts. I'm surprised you lasted so long."

"You have no right to do what you did. You play at God, try to be life and death at the same time. It is unnatural." Thor spat.

It was odd for the Avengers to see Thor so hostile. They had never really seen this side of him. Even in battle he was just angry, but here he was clearly trying to express every ounce of disgust possible.

"I would have thought over a thousand years of life would give you better insults, Son of Odin. I've been called unnatural since my childhood. My aunt took me to be exorcised when I was eight. Either try harder or shut up. I would shut up if I were you, because if you don't I'll make you."

Harry smirked as Thor fell silent. He proceeded to ignore any of the Avengers questions after that, content to sit on the couch and wait for Nick Fury to arrive. They had some things to discuss.

~o0o~

Nick Fury could honestly say that he had not expected his month to get any worse. Admittedly in his line of work he didn't exactly have good days, but July had already been worse than usual. A new president had been elected who was inordinately interested in the workings of S.H.I.E.L.D. and how they operated. It had been a nightmare to manage to inform the President of what was going on without going into too much detail, and keeping some of their more… interesting projects hidden. The Avengers had all moved into Stark Tower, without officially informing him, so he had needed to keep track of what was going on, to ensure that they didn't blow themselves up, without looking like he knew they were all there. The Council had informed him that he needed to up his recruitment numbers, and that entire process had taken stupid amounts of paperwork to complete. And finally every single one of his contacts in the Wizarding World had disappeared without a trace, as well as some of his wizard and witch agents, and every attempt to find new ones had failed.

And so when Nick Fury had received the call from Agent Romanoff to inform him that Harry Potter was sitting on Stark's couch, he had felt perfectly justified in indulging in some choice swearwords to express his ire.

Dealing with Harry Potter was always guaranteed to leave him with a headache and a worldwide crisis to deal with. It was with a resigned attitude that Fury got into the lift to take him up to the top floor.

Potter had first been approached by S.H.I.E.L.D. at age nineteen, a few months after he had finished his 'eighth year' at Hogwarts. He had been offered a deal similar to Starks; working with S.H.I.E.L.D. as a consultant, and someone to be called in on particularly difficult jobs. Fury's offer had been rebuffed and he had walked away without any hair.

It still hadn't grown back.

It was only a few years after that, after Potter had been fast tracked through the British Auror training program, that he had been put on S.H.I.E.L.D.'s watch list, as someone who, while not a definite threat, was certainly someone to keep track of. By age 25, and two subsequent offers by S.H.I.E.L.D., Potter had been named the most dangerous man in the world, among those in the know, because of a combination of his training, political weight, sheer magical power and disregard for morals and laws.

The worst thing was, as much as Fury hated to admit it, Harry Potter's file was by no means complete. While his Hogwarts years were documented in wizarding history books, Fury was sure that there were things that had been left out in his recounting of events, and Weasley and Granger certainly weren't talking. There was almost definitely something that Potter was leaving out of his detailing of the 'Golden Trio's Horcrux Hunt', and the difficulty they had in finding and destroying all six.

Admittedly there were some things that were specifically kept out of Potter's file, like the talk about the Deathly Hallows, as Fury didn't want that information getting into anyone's hands, and considering the ease with which Stark hacked into their files whenever he wanted, Fury figured that was a good decision to make.

The lift doors opened revealing the Avengers sitting on one side of the room facing towards the lift, and Potter sitting facing away from him.

Potter, clearly having heard the door open, stood up and walked around the couch, walking towards him with his hand out.

Fury was unable to bring his hand up to shake however, as standing in front of him was a seventeen year old Potter.

~o0o~

Harry heard the lift opening behind him, and stood up to greet Fury.

He walked around the couch with his hand extended for Fury to shake, but stopped when he saw Fury's expression.

"That's not a good look on you Fury. Looking surprised kinda ruins that whole all knowing thing you have going." Harry smiled when he heard Stark snort from behind him. "Seriously though. What has you so surprised?"

"Potter. You're thirty five. Just- I don't- What the fuck?!"

Harry was slightly shocked as he realised what Fury was talking about. He was so used to the Wizarding World knowing that he didn't age, that he had forgotten that people in the muggle world didn't know.

"Yes I am. I also don't age. Expect me to be around for much much longer Fury."

"Don't age? Don't age? Fuck. Is that why you are here?"

"No Nick. I'm here to tell you why you are missing every single one of your wizarding agents, and why the population of the world is half a billion people smaller."

Harry smiled as Fury immediately turned around, walked over to Stark's drinks cabinet, and poured himself a glass of scotch.

"Little bit early for alcohol isn't it?"

"It's your fault Potter. Sit the fuck down and explain. Now."