Ripple Effect - noun: the continuing and spreading results of an event or action. What if events happened differently to cause a ripple effect which no one could have guessed? One such event being that Petunia and Lily had reconciled before her death? If Petunia had treated her nephew much better than in the books or even if Harry was actually James' step-son?

Black's on the loose, but Tony doesn't care because he's finally going to Hogwarts. What could go wrong in the best wizarding school of Britain? Of course, he doesn't take into account that he's something of a trouble magnet... but why is Harry Potter looking at him so suspiciously all the time? Why does he feel such a strong sense of déjà vu when he sees those five other students?

Harry moved to America to start afresh, to put the war behind him, move on and become a journalist. Shame the universe would always conspire against him. This is the story of how he met the Avengers and his life was turned upside down. Again. Rated T for future language. SLASH but no pairing yet.

When Harry's relatives pick him up at the train station after his first year of Hogwarts he doesn't like the looks on their faces at all. They gleefully inform him Lily had an affair with Tony Stark who happens to be his biological father. Just as Harry was starting to get use to magic he's swept up into a world of aliens, advanced technology and even more magic. IRONSTRANGE.

After five years travelling the world, Harry Potter has landed in New York. He figures that there's no better place than the city that never sleeps to settle in and forge a new life. If only the heroes, villains, aliens and spies had received the message. Begins just before the Avengers movie and continues through the MCU. Encompasses MCU movies & TV, some others along the way.

GEN! Hurled into another dimension, Harry now has to adapt to an entirely new environment. One with superheroes, aliens, Asgardian gods... and what in the world is SHIELD? Assumed an amnesiac, Harry is put in an orphanage and enrolled in Midtown High School. Friend!Peter Mentor!Strange Avenger!HP Mr. Negative!Villain

Rated T for now

(Harry Potter and the Power of Love is the prequel, an HP universe only story). 16-year-old Harry Potter just wanted to leave behind the horror of the war with his Godfather and Godson. But the haunted Chosen One's heart and love would embark him on a journey that would realize his true destiny; to be something more with a group of remarkable people. A story of family and adventure

When Peter Parker touches a stone capable of travelling through different dimensions, he, Ned and MJ are in for a surprise.

Events force the Wizarding World to come out into the open. Unfortunately for Magicals, they are not the strangest things around.

Alana Potter didn't know she was guarded against her curse (gift?) her whole life until the day she wasn't. Then, her nights were plagued by the visions of a world similar yet so different from her own and days spent thinking about the man she was unwillingly stalking in the said world. How was she going to escape this mess and more importantly did she even want to? Fem!Harry

"They all are gone. Reduced to dust." And tears streamed down his face, he broke into deep sobs which rattled his body. Harry vowed to avenge his friends' death. Thanos' snap removes wizatd population from the face of earth, except one.

[Gen., female Harry Potter] In which Tony wakes up, and Hari gives him a choice. ENDGAME SPOILERS. ENDGAME FIX-IT.

When Harry Potter wished upon that shooting star, he never imagined that this would be the outcome - experimented on by HYDRA, and tossed into the real world a superhuman. Facing Voldemort just got a whole lot harder with the Avengers on his tail too. Warnings inside. Reboot of my story Avenging Angel.

“Steve’s cheeks started to burn, the intrusive feeling getting a bit much...” Steve catches a glimpse of the father/son relationship between Tony and Peter. A bundle of related one-shots, lots of fluff!

There's a new superhero keeping a low profile, but moving at fast speed doesn't really help, especially if that kind of ability makes you an internet sensation. Peter would very much like to meet him. On a different note, Peter gets a new chemistry instructor, Mr. Barry Allen.

A few months before Thor's coronation, Loki left Asgard, needing some time to himself. He chose to let Heimdall choose where he went. Of course, he ends up on Midgard. And of course he had to strike up an unlikely freindship, not that he would ever call it that, with a thirty year old Hermione Granger. BEING REWRITTEN.

Peter Parker didn't think his day could get any worse- until he was proven wrong. When his teacher announces that his class is taking a field trip to Stark Industries, Peter knows that there's no getting out of this. Tony's gonna embarrass him, Cap's gonna give his 'don't do drugs' lecture, and there's no telling what the rest of the Avengers will do. *Rated T because I'm paranoid*

After being hit by Dolohov's curse in the Time Chamber, not only does Hermione find herself in a different time and place, but she is saved by a friendly neighborhood Spiderman.

The Battle of Hogwarts is over. The Good Side has lost, and Hermione Granger is the only Good survivor. After being confronted by two Death Eaters, Hermione is sent to a whole new world. A whole new time. Will her past trauma get in the way of love, or bring them closer together?

"I swear you could trip over your own shadow." In which Steve Rogers trips. Repeatedly. A Steve/Hermione ONESHOT.

AU WITH NO SUPERHEROES OR SUPER-POWERS       Unbeknownst to most, Tony Stark spends his Thursday afternoons visiting a hospital's children's ward for charity. One Thursday he meets an eight-year-old named Peter Parker. The boy ends up changing him and his life forever.           CHARACTER DEATH

(Post Infinity War) Peter had only been out of the country twice; once to Germany, and once to Titan. One of which he never came back from. That was, until he ended up 10 years into the past, of course.

Loki didn't know what this strange familial pull was. Harry didn't know why he turned blue when cold or why Luna called him Haraldr Lokison. A bit of research wouldn't hurt, Harry finally decided.

Rewrite of my original story, Harry Stark. Takes place before Iron Man and before Harry Potter, but will mesh the two series together. What happens when Tony finds out he has a son, but not just any son, but the BWL? What happens when Harry Potter, a lonely orphan meets a man who never wanted to be dad? T for now. Rating may change as I get into more writing again.

After the Battle of Hogwarts, Harry becomes depressed. He realises the only way to escape the expectations of the Wizarding World is to leave that world altogether and find a way to a new, alternate universe where no one knows him. Soon however, SHIELD starts to detect new spikes of electromagnetic energy. They decide to investigate and so they send their best agents.

It's wintertime and Peter is struggling to make ends meet after Aunt May dies. But he's doing all in his power to keep up his responsibilities as a student, photographer, boyfriend, and vigilante... but things get more complicated when Tony Stark finds a homeless genius and gives him a place to stay.

A short story! Peter has encountered a new villian that left a nasty mess. He's badly hurt and desperately trying to hide it from Tony Stark. It doesn't go well for Peter.

Whatever did happen, whatever is happening right now, whatever might happen in the future, it all happens for a reason. This is the story of how a broken war hero met an optimistic child wonder and how that meeting changed their lives and inadvertently changed the whole universe. Harry Potter x Marvel Cinematic Universe crossover. Includes characters from both movies and TV Shows.

In 1998, Mjölnir was sent to Midgard due to Thor being grounded. The hammer landed in Harry James Potter's hand. This is the tale of Harry and his godson, Teddy, visiting Thor fourteen years later and not only does Harry meet the Avengers, he also tells them his story... Notes and Warnings inside. Probably OOC characters. Eventual and only slight Harry/Steve.

(Sequel to "And You'll Blow Us All Away") Tony and Peter are home, they are safe, and all they want is a few breaths of peace. But one battle ends only for another to begin. And they may have escaped the Raft, but they cannot escape themselves.

No body is perfect; people make mistakes. We're human. Peter Parker is among those humans. And, well, let's just say he's apologizing quite often. [A fluffy story where Peter does something and is sorry. Involves "Mr. Stark". Almost like a "four times Peter apologized" and well, the fifth time...you'll just have to read it.] COMPLETE!

Peter Parker meets the Avengers on accident, and ends up spending more and more time with his heroes. What will happen when the Avengers find out what Peter does in his free time? Just a fun idea I had. Rated T because I'm paranoid. Mild language (But I'm refraining). No slash. Only pairing may be Peter and Gwen.

Harry had a difficulty life since he was a child, touched by magic, fate and death he was chosen, prophesied. But in the end, he went to the hero's way and made a hard choice. Getting a second chance, being reborn as the son of one of the biggest heroes.

"iflinasur," Peter mumbled into his glass, the blush returning. "I'm sorry. I don't speak mole people." Peter huffed out a sigh and miserably met Tony's eyes. "I fell in a sewer." Tony looked the teen over with a new wave of revulsion. "Jesus Christ, Parker." ... Do you ever fall into sewers and then need your billionaire mentor to wash your super-suit? Peter Parker does too.

A kid from Queens was all it took to melt the ice around Tony Stark's frozen heart. - A series of oneshots that delve into the relationship between Tony Stark and Peter Parker as their lives begin to merge.

Peter Parker had had everything: a mother, a father, an uncle, an aunt. He'd lost them all. All he had left was Tony Stark, and all Tony Stark had left was him. And in the wake of their insurmountable losses, they go about trying to find a family within each other.

Harry Potter decides to take a break from life in England, following the 2nd Wizarding War. What better place to go than a place where he can get lost? But has he lost something more important? He rents out a place to stay in New York. Enter Tony Stark and the gang... (All ships are canon; rated K for language; NOT TOO MUCH ANGST)

a collection of informal oneshots and drabbles from my Tumblr

Peter Parker has been living on the streets of NYC. Will a run-in with the Hulk, while out of Spider-Man costume, change that? Peter somehow gets himself invited to Avengers Tower and Tony Stark takes an interest in the the young genius. Except SHEILD wants to know about Tony's newest protegee too! Peter will need to juggle both his lives to keep his identity secret from them all!

Howard Stark built a time machine, and Tony Stark figured out how to work it. Peggy Carter is rather unamused by the sudden presence of Avengers in her basement. Or rather, the basement of the Stark residence in LA, which happens to be a lab. SPOILERS: Winter Soldier, Agent Carter through 2x05.

What if Tony escaped the cave a few days faster than the original timeline? Therefore, when he treads through the desert, Rhodey didn't find him first, Rose Potter did. Rose, who was taking a vacation from her dimension, stumbles upon a dying man. So what does she do? Save him. Curse her saving people motto. FEM Harry! (MOD)

In which Anna Black is placed into the Avengers Initiative, and is none too pleased about it. Fem!Harry.

And one time that he meets Spider-man.

Tony Stark really didn't have anything that kept his interest, no one could ever keep up with him and his own personal demons always chased him into a bottle. Iris Potter was forced to abandon her homeland when her people demanded she become nothing more then a brood mare, so she ran to the other side of the pond and played the stock market while hitting the bottle. Then, they met.

Accepting Tony Stark's invitation to join the Avengers, Peter Parker, secretly the masked hero Spider-Man, is introduced to a world full of danger at every turn. Luckily, he doesn't have to go through it alone, and is helped in his journey to becoming a great Avenger. Set after Spider-Man: Homecoming.

Nobody expected the vacuum created by Fisk's downfall to go unfilled for long, but out of all the possible forces to fill it, no one considered it might be HYDRA. With a shared city and now a shared enemy, it is only a matter of time before Daredevil comes to the attention of the Avengers. Sequel to The Pains of Being A Hero.

Newt Scamander comes to Portland in search of a new creature. Unknowingly, he stumbles on members of Black Claw, overhearing parts of their plan. He's saved by Nick, Monroe, and Hank but Black Claw doesn't forget and they've left witnesses. Will the group be able to band together and survive?

Peggy Carter and Howard Stark saw and did much together since the second world war, and even after, stuck together through thick and thin until the very end; even the mundane, family moments in life.

Matt wouldn't have been surprised to meet the Avengers as Daredevil, but to meet them as Matt Murdock was unexpected. All he had wanted was to finish his errands without incident, but after saving a distracted Tony Stark and causing himself harm in the process, Matt finds himself the victim of reporters, Tony Stark's fans, and an eccentric billionaire. (Sequel: A Rising Threat)

Whoever said that magic couldn't work with technology was clearly wrong, Harry thought. He masters a new form of magic called "Technomancy". As the mysterious head programmer at Stark Industries, Harry is thrown into a world of superheroes and scientists when he uses his magical healing skills to help the world. Avengers!Harry

It's a known fact that whenever something was on Tony's mind he invented things. Things that SHOULDN'T always be invented. Like a time machine for instance. If you asked Bruce, that was defiantly one that was going right to the top of the list of things 'Tony Did Not Need To Invent' as soon as they got out of the 1940's. If they did. Who knew being his Science Bro would be so hard?

Torn from his family and lost in an unfamiliar world Harry Potter will fight with all he has to return to them. He has to navigate self-absorbed geniuses, secretive government agencies, megalomaniacal Norse gods and a huge green rage monster if he is to find his home. Post-epilogue story.

Two men in suits who think they're in control. Two redheads who know better. (In which Donna meets Pepper, and epicness ensues. No slash.)

Edwin Jarvis was a great supporting figure in Tony Stark's life. That's why Tony named his artificial intelligence program JARVIS, after all. But there may be another influence to JARVIS's creation: Aunt Peggy Carter.

A man falls from the sky, and SHIELD is more than happy to help... Though they're not quite sure what to do with him with most of their experts claiming he should be dead. But then another another turns up... and another, and SHIELD is half wishing they could rescind their offer of 'sanctuary', because magic users might just be more trouble than they're worth...

Nine hundred years since she defeated Voldemort. And nine hundred years since she fled the wizarding world. Alexis Potter is the Mistress Of Death, alone until she meets Tony Stark. She now works for him and has become his best friend. But there are things about her he doesn't know. It's just the two of them at first, until she picks up a couple of extras on the way. Fem/harry.

Peter Parker wakes up in a strange place, beaten and bruised. Oh yeah, and the Devil of Hell's Kitchen is making him soup. Or, all the times Matt Murdock accidentally-probably-not-on-purpose bumped into various superheroes, Avengers, and vigilantes.

Agent Peggy Carter is having a bit of a long day. Luckily, it's almost over-that is, until the grinning Leviathan operative smashes something on the ground between them, a bright light flashes, and...well, apparently, tears in the space-time continuum aren't just for summoning massive alien armies anymore.

After his first year at Hogwarts Harry discovers a startling truth that throws him into an entirely new world. He finds a new family and a new home that drastically changes his life for the better, if not crazier. After all when you're the son of Tony Stark, the one and only Iron Man, life is bound to be interesting.

Peter Parker gets a once in a lifetime internship at Stark Industries and soon befriends his idol Tony Stark. Also, the Avengers start to see more of the new hero Spider-man. Now, Peter must juggle keeping his secret, new villains, and thinking about his future... What could go wrong? rated T... just cuz. Its better on the inside!

Iron Man wants a successor, but has failed multiple times to produce a child. He decides to adopt a young, yet bright teen; unknowing that he just became the father of the infamous red & blue vigilante. Rated T for violence, and possible dark themes.

After Tony Stark outs himself as Iron Man on live television, he acquires a magical stalker in the form of a bored (female) Harry Potter, who has emerged from the Veil of Death in a world without wizards. A cat-and-mouse game ensues when Stark's curiosity drives him to ever-increasing lengths to capture his invisible benefactor, who struggles with maintaining her distance.

Let's all admit it: leaving Harry on a doorstep was pretty careless. So what happens when Black Widow finds him after a mission in Surrey?

Harry's first failed case as an auror causes her to end up in an alternate universe where 1) magic doesn't exist and 2) some people don't understand what it means to stay dead. Steve just wanted to help clean up the mess left over by the Chitauri invasion. Harry and Steve becoming friends wasn't a part of either one of their plans. Fem!Harry, BWL!Neville, eventual HP/SR.

A Loki is Harry story. When the Avengers find out where Loki is, they want to retrieve him immediately. Unfortunately for them, Loki's friends, acquaintances, fan girls, and even enemies are a bit protective of him.

When Harvey Specter's life is at risk, Natasha Romanov is forced to go undercover as a new associate to protect him. Being a fake lawyer is harder than people expect, especially when she's producing lie after lie & The Avengers are constantly talking to her through an earpiece. This is where things start to get complicated...

Harry resents being told he's a magnet for trouble. He attempts to prove this wrong by taking a vacation in the middle of the Afghan desert.

Reboot of my most popular series. When a young Harry Potter meets Tony Stark the destiny of his world will change forever. Now Harry Stark will take on his destiny, but how will the changes to his life affect this path? First chapter now up.

For eons, Thanos of Titan, has desired the love of death. Now, it is within his grasp. All he needs to do, is bring her wayward son, back to her. The problem is that her son doesn't want to go back to her. And unfortunately, for the Avengers and Nick Fury, and to the irritation of Asgard, Earth has now become their battleground, in this Game of Death.

Harry realizes that becoming the Master of Death has left him with a very unwanted gift. Life just can't cut him a brake. Newly widowed and newly divorced, Harry Potter, Draco Malfoy, and their families, strike out for America just in time for Manhattan to be invaded by gods and aliens from outer space. What new adventures will the Golden Boy and Slytherin Prince get into now?

A letter, just a few lines on a piece of paper, and it was enough to change the entire world. At least Tony's entire world, now he couldn't imagine ever going back. He loved being a dad.

STANDS IN STEAD OF LAST CH OF DH Harry, Ron, Hermione, and Ginny are hurled to the Marauder's time during the last battle.

Tony finds a baby in an abandoned house. Rhodey has to get used to the idea that Tony gets what he wants, even if that means a crying toddler that has an unusual obsession with blueberries and the glow of the arc reactor. Pepper is still trying to figure out how 'fixing War Machine' turned into an adoption and an almost international incident. Gen.

Harry once said that he was never allowed to do better than Dudley at school. How did that start? Mentions of child neglect/abuse.

Mr Potter had thought the golden days of his life had long gone, until he receives a visit from a certain one-eyed director from an organization in the business of avenging.

Tony hummed, "Not a great plan. When they come, and they will, they'll come for you." "I have an army." Tony set down his glass and looked at him, "We've got Hermione." HG/BB

Kate Beckett and Rick Castle are investigating the death of Draco Malfoy but they will soon find out that they have uncovered a whole new world that is far over their heads.

A year after the war, Harry somehow manages to get thrown back in time to the Marauders 7th year. Dumbledore convinces him to become the DADA professor. How will he handle seeing the young Marauders? Can he keep himself from telling them about the future?

It happened because of a game. That's it. Nothing more. But Fate doesn't like to lose, and if winning means sending a few people back in time, so be it. Harry Potter will be given a second chance. WRITTEN PRE DH

Harry Potter never had much luck, being sent to his parents’ past should have been expected. 'Complete' Time travel fic.

What happens when the Marauders and Lily mess up a potion and get sent to Harry's time? HBP spoilers. Rated for safety. Please R&R.