Disclaimer: I do not own Avengers or Marvel nor do I own Harry Potter.

This is my first published crossover, I wrote it mainly because I ran out of crossovers to read, so decided to do my own one!
This is Harry Potter and the Avengers (2012)

In this story, the enchantment on Thor's hammer that prevents others from lifting Mjölnir was placed on the hammer before the first Thor movie. Sorry if any of my Norse mythology is inaccurate and/or incorrect.

Starts on the day after Hogwarts breaks up - the third week of June, so I'm claiming it to be Friday 15th June 2012 when Hogwarts ends, so starts on Saturday 16th June 2012, which means it's set a few weeks/month after the Avengers battle with Loki and Chitauri

WARNINGS: Language, Slight Bashing from Molly and Ginny but not significant or over the top, Harry raises Teddy, Harry is gay but that's not important in the story, Eventual Harry/Steve, Abusive/Neglectful Dursley's, Past Suicide

IMPORTANT
ABOUT OTHER WORKS:
So my GCSE exams are over and done with -I'm a free elf- so as promised a long time ago, I will be doing another multi-chaptered story soon. This is, in fact, a multi-chapter, however, I will most likely have no more than ten chapters with this work. That being said, the next long multi-chapter story will undoubtfully be Harry Potter and I had a PM the other day in regards to a Damien Riddle sequel, so I have a feeling I will end up doing one soon -assuming I can actually get enough of a plot in my head! I apologise for not doing a Neko!Harry which was the voted option, I just don't see how I can make that one work -I really am sorry.

Inside the large building that sat in Manhattan, once known as Stark Tower and now known as Avengers Tower, were a group of superheroes who sat in the communal lounge talking, laughing and drinking. After the alien attack and Loki situation, Fury had forced Tony Stark to allow the other Avengers to live in the tower, though by the time everyone had moved in, it was the second week of June as the majority of May was filled with cleaning up, rebuilding and far too many conferences, talks and meeting. Then the first week of June was full of organising the tower (and searching for Bruce to then drag him to the tower). They had now reached the third week of June and their second week of living in the tower. Though, this was, in fact, the first time the group had all been in one room since the attack.

Throughout the evening, the group had decided to try and lift Thor's hammer, Mjölnir, but much to the Norse Gods amusement, they had all failed.

"Has anyone else ever actually lifted your hammer?" Clint asked with a pout as he sat down after trying and failing to lift said hammer. Thor's expression became oddly blank for the big guy before a small and rather gentle smile graced his lips,

"Yes. Other than my father, there has been one other that has lifted my hammer."

"Gonna tell us the story, big guy?" Tony asked taking a swig from his liquor filled glass,

"That I will, Man of Iron!" He exclaimed and settled back in his seat on the couch where Steve sat to his right, both of them filled the three seater couch due to their bulky size, "You have reminded me that I must send word to my old friend in the hopes that he can visit, we haven't spoken in fourteen years. But, should he arrive, he can surely tell the tale better than I."

"That is fine, Thor. Please do continue." Steve murmured kindly to the man whose face saddened slightly at the reminder of the time,

"Well, it happened fourteen years ago. The All-father decided to -as you Midgardian's call it- ground me and sent Mjölnir to Midgard. Much like the incident in which we met, Eye of Hawk, however, Mjölnir landed in England. More specifically it landed within the British Wizarding World. A secret community of Midgardian Seihr's, they have hidden communities all across your world. With magic similar to Loki, however, only a select few who are powerful enough can use magic without a wand.

"Anyway, when the All-Father cast Mjölnir down, it landed in the middle of a battle. In the hands of the Saviour in fact. I heard that the Saviour managed to save more people with the help of Mjölnir. I have no doubt that their Saviour would've been victorious even without Mjölnir, yet the battle ceased quicker with less bloodshed with her help. As angry as I was about my punishment, I was indeed grateful for its happening. I was sent to recover Mjölnir after my punishment and their Saviour had taken much care of her, I felt indebted. I stayed in his company for a while, we had much fun. Talking and conversing like we are now, I helped comfort him and support him through his many troubles after the fall of their battle and end of their war. I was saddened to leave as I had grown to love the boy, I found he was like a brother to me, maybe a son. I have found myself worried for his safety since my departure."

"Wow. I did not expect that." The majority of the group muttered in unison with wide eyes,

"I wonder if SHIELD has anything on these communities," Clint whispered to Natasha who nodded in agreement and made a mental note to find out.

"Well my friends, I shall leave you to ponder over my tale and bid you a good night, I find myself a tad tired."

"Goodnight, Thor," Steve said kindly as the others repeated the sentiment in their own ways.

—LINE BREAK—

'Hello, my dear friend,
It has come to my attention during a conversation with my teammates and friends,
that we have not seen each other for an unfortunate fourteen years.
I do hope life has treated you fairly, I have missed you
and our conversations.
Should you wish to bear my presence, I was inquiring whether you would accept an invitation to the newly named 'Avengers Tower' in Manhattan, New York.
I have been staying here for the past couple of weeks after an incidence with Loki and
until the foreseen future, I have been invited to stay within the tower.
I do hope you visit, you are welcome anytime and
my friends, the Avengers, seem interested in you and your story.
I hope for a response, though I shan't blame you if you do not respond,
after all, I have been gone for a truly significant time for Midgardian's.

-Your friend, acquaintance, and brother,
Thor Odinson.'

Rereading his letter etched gracefully on a piece of golden parchment, Thor hoped it sounded alright but decided to send it away and not rewrite it. After all, if his friend had not changed, then the man would have no issue with his wording. With the use of a trick his mother, Frigga, had taught him, Thor gently folded the paper and held it between his hands tightly but softly so to not damage it. Closing his eyes and thinking of the recipient, he blew into his hands and seconds later he opened them to find the golden parchment gone. Vanishing at approximately 3:12 am. Smiling gently, Thor changed and readied himself for bed.

—LINE BREAK—

Emerald eyes blinked rapidly as they fell on a tall teenager sporting blue hair.

"Come on, Uncle Harry! It's the first day of summer, let's do something!"

"Teddy. Like you said it's the first day of summer. You have till September to do shit. Let me sleep you irritating brat." The sleepy man tried to bury himself back under his duvet cover only to have it ripped off of him, "I swear Teddy, I will kill you."

"No, you won't!" Teddy exclaimed way too cheerfully for whatever time it was. Skipping away, he briefly looked over his shoulder to find his grumpy godfather walking like a zombie and chuckled.

Minutes later they were both sitting at the kitchen table eating breakfast. With a cup of tea in his hand, Harry found himself slowly becoming more aware and awake. Waving his hand, he cast a wandless Tempus spell. His eyes bulged before narrowing to a glare aimed at the innocent looking teen opposite him.

"Let me get this right. You barged into my room demanding we do something today. Mind you it's the first day since you got home from Hogwarts, by all rights you should be lazy and tired and sleeping till noon. But no. No. You woke up and decided to get me up too…at eight-fucking-o'clock in the morning."

"Sorry…"

"I…Merlin kid…you're lucky I like you," Harry muttered with a slight smile. They continued to eat in a peaceful silence, the risen sun peaking into the house that resided by the seaside in North Yorkshire. It was a calming place along the coastline between Whitby and Scarborough. The village they were in was small and tourists rarely stayed, clearly it wasn't as interesting as the seaside towns. But, that was what made Harry love it even more. The peace, the quiet and the calm. The locals were lovely and the beach was stunning. Always clean, always tidy and never littered with the rubbish you often find on the beach. Overall, the small community was perfect. Nothing ever happened, everyone knew and respected each other -well, there was Mr Hooper, who no one enjoyed talking to due to the fact that he was a horrible old man that constantly pointed out flaws and picked on people, though luckily he lived on the outskirts of the village and rarely left his home.

"But, Uncle Harry! Last summer you said we'd go on holiday! Like abroad! I want to go!"

"I…I…I can't help but want to ask Hermione if I was like you at fourteen."

"Doubt so, I mean you were a bit busy at fourteen so yeah…" Teddy murmured in response,

"True. So kiddo, where do you want to go?"

"New York, America!"

"…how long have you been thinking of this?"

"Since you made the promise last summer." He replied in a sheepish tone,

"Ok. We can go. Muggle transport or Portkey?"

"…I mean if we take a plane it would be too much hassle and then one of us would have a screaming kid behind our chair and we'd then have to get out of the airport and get a cab to where ever we're staying and that could all take forever! Plus we'd probably have to wait two weeks for a decent flight and that's far too long!"
"Merlin, Teddy, you could've simply gone with 'Portkey'." He just shrugged his shoulders and gave his godfather a big grin. Before Harry could continue a golden piece of parchment floated down like a feather, it hit the table softly in front of Harry. Sending a curious look to Teddy, the emerald eyed man picked it up and read it. A smile painted itself across his lips as he finished reading it. "Let's go to Manhattan, Teddy. Today we'll go to Diagon Alley and sort out an international Portkey -Gringotts still organise travelling, right?" Teddy nodded slightly confused with Harry's sudden enthusiasm, "Great. Then we'll also convert some Galleons into US dollars and grab any clothes or things you want for your holiday. I think my dad had a place in New York, though I could be wrong. I just need to answer this letter, so we'll head out in an hour. Go get ready, Teddy!" Harry all but shooed the fourteen-year-old out of the kitchen, leaving Teddy to wander up to his bedroom thinking that someone must've cast a Confundus Charm on him or maybe a Cheering Charm on Harry.

Back in the kitchen, Harry had grabbed himself a piece of parchment and a pen-like quill that was a recent invention making it easier for Muggle-raised witches and wizards to write.

'My my, this is a surprise.
It's good to hear from you again, Thor.
I have to admit I heard something from the Ministry of Magic about you being in Mexico last year, though I don't know any details other than "You know that bloke from '98 that came for the hammer? Yeah, he's back and seems to have gone bloody mental. Plus a bunch of muggles found his hammer." I was tempted to go and grab Mjölnir until you could get her back but I realised that if you could not lift her, then I most likely couldn't either and that it was most likely a punishment that I had no right to involve myself with.
Though…I was upset that you never visited…
Either way, I'd love to come visit.
My godson, Teddy -you met him when he was a baby- woke me up at stupid-o'clock because he remembered my promise to take him abroad that I made last year and well, your letter was perfectly timed as we can come over to Manhattan to visit you.
We should arrive in two days (Monday 18th June) though we may need to postpone till Tuesday in case we can not find a hotel to stay in.
Hope to hear from you before Monday.

-Love,
Harry Potter'

Though he did not send the letter until he and Teddy got home after their day out in Diagon Alley -it was just in case they couldn't go as Harry didn't want to then have to send a note apologising that they'd need to postpone. They returned home at 3 pm, Teddy was bouncing on his feet as he rushed to his room to pack for Monday. With a smile, Harry folded the letter he had written that morning in his hands and blew it with the thought of Thor, who had taught him the little trick making his life so much easier as he had never wanted to find a replacement for his dearly deceased snowy owl, Hedwig.

—LINE BREAK—

Thor woke the next day around 10 am. It was after all a Saturday and he had not fallen to sleep until closer to 4 am. Though with a mere six hours of sleep, the God was hyped up and wandered into the communal kitchen to grab some pop-tarts and a coffee. Once in there, he greeted all the other Avengers, who were only beginning to wake up as they had fallen asleep a bit after Thor. Everyone sat around the island trying to wake up except for Thor who was going through his second box of pop-tarts by the time everyone was there.

"Am I more sleep-deprived than I think or is there a piece of fancy paper floating down after appearing from nowhere?" Tony grumbled blinking his eyes rapidly as it landed in front of Thor, who simply smiled.

"Not at all my friend, this will be a response from my old friend." Quickly he opened the letter and began to absorb the information, a smile so large that it was a wonder Thor's face didn't break, stretched across his face. "This is wonderful news! My friend is coming to visit with his dear godson, I wonder what young Teddy is like now, he was only a few months old when I last saw him. They arrive Monday, though Harry has said that they may postpone until Tuesday due to settling in at a hotel."

"Nonsense, send a letter back and tell him they can stay here!" Tony exclaimed suddenly wide awake,

"Man of Iron, you are most generous, I thank you." Thor smiled and started to write back on another golden piece of parchment.

'Hello Harry,
I am most pleased to hear from you so quickly.
I look forward to seeing you come Monday.
My generous friend has graciously stated that you may reside here within the tower until you decide to go home.
I do hope that is not a problem.

-Your friend
Thor Odinson.'

Thor smirked slightly at the awed expressions as he sent the letter off. Less than ten minutes passed when another note arrived thanking them all and saying Harry and Teddy would see them around midday on Monday.

Author's Notes: So next chapter will be up shortly as I've just started on the fourth chapter and have 2 ready to be edited and uploaded -though I'll probably do that tomorrow as I am home all day.

Next chapter is shorter than this and Harry won't be opening up about his first seven years in the Wizarding world until chapter 3.

Feel free to offer some opinions and ideas in regards to both this story, the sequel I may do for 'Damien Riddle' or any other story idea you would like me to think of writing -can be PMed or put in your reviews!

Anyway,

Thank you for reading,
Hope you enjoyed,
Please review,
No hate -don't like, don't read.

Bye~