Disclaimer: I don't' won Harry Potter or Spider-Man.

The day after the troll incident, Harry took Ron, Neville, and Hermione to the Room of Requirement after breakfast.

"Wicked!" said Ron in amazement looking around the room. "What is this place?' asked Hermione.

"This is the Room of Requirement," explained Harry. "My aunt told me about this place, apparently it's equipped for whatever you need. You just need think about what you need while going through the corridor three times."

"But first, before I explain, you guys have to pinky promise you won't tell anyone what I'm about to tell you," said Harry seriously.

"All right, but what's a pinky promise?" asked Neville.

"If you break it, you'll have to put one thousand needles in your eye," said Harry. "Put I won't make you do that, though I'll never speak to you guys again."

They all did the pinky swear and Harry started to explain. "Well, you three know I'm really strong, right? Well, that' s not the only thing only thing I can do," said Harry.

"What else can you do?" asked Hermione curiously. Harry took off his shoes and then did a ten foot jump in the air and did a variety of acrobatic moves that would make an Olympic gymnastics green with jealousy.

Harry grinned at they're stunned reactions and then shot a web line and swung to a wall and crawled on to get to the ceiling. He then lowered himself down using another web in a yo-yo position.

"So I guess you all know what my powers are based off, huh?" grinned Harry.

"You have...the powers of a spider," said Hermione. Ron suddenly flinched and looked slightly fearful.

"Yep," said Harry getting on his feet. "But obviously I wasn't born like this, I'm sort of what you call an accident."

"An accident?" repeated Neville.

"Yes, it all really happened when I was nine years old. My aunt and uncle took me to this science exhibit...

Flashback: Two years ago...

Harry was marveling at all the high tech stuff that could be seen around him. But what really caught his attention was the part where the scientists where showcasing genetically engineered super spiders.

"Combing an entirely new genome," stated a woman scientst. "We combined the genetic information from all four spiders, in these fifteen, genetically designed, super spiders."

'Wait, did she say fifteen?' thought Harry. He noticed that one of them wasn't in it's glass hole.

The exhibtion went on to something that really made Harry giddy with excitement. An actual radioactive demonstration that could be done safely with humans nearby with no protection.

Two large machines that made some sort of neon blue laser beam strike at each other, creating ooh's and aah's from the audience.

"It's really something, isn't it," said his aunt.

"True, it is quite amazing," admitted his uncle.

Then Harry saw something that made him rub his clean his glasses. A spider that looked just like the one's that were genetically engineered lowered itself down on a web and was actually caught in the radioactive blast!

It jumped away and landed on the closest thing nearby which happened to be Harry's right hand!

"Gack!" yelped Harry as the spider bit him and he shook it off which then scurried away.

End Flashback...

"You got bit by it?" said Ron looking queasy.

"You went back to the hospital after that, right?" asked Hermione.

"No," admitted Harry.

"No!" shrieked Hermione. "It must have been poisonous!"

"I'm siding with Hermione on this one," said Ron.

"Didn't you at least tell your aunt and uncle?" asked Nevillle.

"No," said Harry looking sheepish.

Flashback:

When Harry was taken home he felt like he was gonna collapse so he excused himself to his room. That was when his room felt like it was spinning or was he spinning, or both?

Somehow he managed to get himself on his bed, covering on him his bedsheets as the researchers voice echoed in his head

'In this recombination lab, we used synthesized transfer RNA to create an entirely new genome... combing the genetic information of all three spiders...into these fifteen genetically designed super spiders...'

Harry felt like he was was in some sort of nightmare. All he could see was spider's everywhere, crawling around what looked like veins... And then he saw a DNA strand come over to a double helix as part of it broke off the strand bonded to the free spot. The double helix changed from it's grey color to the red and blue the strand was and everything started spinning faster and faster until...

Harry suddenly awoke, aware, living, back feeling went back into his body.

"No more biscuits before bed," he muttered.

End Flashback.

"And over the course of a few days I find out about my powers, got control of them, and here we are now, with me telling you all about it," said Harry.

"You don't have fangs, do you?" asked Ron looking somewhat frightened.

"Nah," said Harry making Ron look relieved. "Though I wish I did, then I could poison those git's whenever they try to gang up on me..."

"What?" asked Hermione.

"Oh dirty cobwebs," groaned Harry. "There's also one thing I didn't mention. Hermione, do you watch the new on the tele sometimes?"

"Yes, but what does-" A look of realization came to her face. "Your Spider-Man!"

Harry grinned and took out his mask and put it on, and took of the rest of his outer clothes to show his costume. "Pretty wicked, huh?"

"What's the costume for?" asked Neville awestruck at it.

"I put this bad boy on to fight crime in London," said Harry.

"But that's dangerous!" said Hermione. "And your only eleven!"

"Which makes those guys getting beat by me, really embarrassing," snickered Harry.

"Wait what?" said Ron looking confused.

"About a year ago, London started to experience a crime wave so I decided to use my powers to fight bad guys and protect the little people," grinned Harry. 'And for another reason, but I'd rather noone knew the real reason.'

"So your a...superhero?" said Neville.

"Yep, though I'm not a big time one yet," said Harry crossing his arms.

"You have to be the only superhero in existence, Harry!" said Hermione.

"So?"

"By the way, do you still go out and fight criminals?" asked Ron.

"Of course he doesn't, how would he be able to get to London and back here?" dismissed Hermione.

"That's where your wrong, Hermione," smirked Harry taking out out the tele-cartridge. "This little doo hicky can teleport me to London and back, just like a portkey."

"So that's where you keep disappearing to," said Neville.

Later that night...

"SHOOT HIM! SHOOT HIM!" screamed one the gunman trying to shoot Spidey.

"Dodge, dodge," said Spider-Man in a monotone voice. Since the weather was getting colder, he got the Room of Requirement to make him a new suit for the winter. It black eye pieces, a different spider design on his chest, but was all black from the middle of his chest down. (He was wearing the Alex Ross Costume) It was also insulated against the cold, and made him harder to see in the dark.

He was doing his patrol's and found a dozen men doing an armed robbery from sort of science laboratory and beat eight of them into submission and webbed them up for the police.

Now he was swinging after the rest who got into a car and were trying to lose him while firing at him.

"'C'mon, don't you people have some heavy artillery or something?" mocked Spider-Man.

Then of all things one of them whipped out a rocket launcher and sent a missile towards a nearby building, setting it on fire and causing a lot of damage to it. To make things worse Spider-Man could hear people screaming from in it.

Acting quickly, he swung into it and rescued the family that was living in there.

"Don't thank me, just remember to think your Friendly Neighborhood Spider-Man's is a badass." said Harry hoping he hadn't lost them.

He shot a web towards a particular large building and made a tremendous leap and quickly surveyed the area and saw the getaway car. Making web-zips and stealthily dodging further detection, he followed them until they stopped. They were at a train station where it was really pitch dark except for certain lamps which brightened certain areas.

He carefully got onto a nearby street lamp as he listened to what looked like the leader of them. "If you see him, shoot first, and ask questions, never. We're not taking any chances, the Big Man wants these gizmo's to make more of those super freaks, read me?"

"Loud and clear, boss," said one of his bozo's.

'Hmm, more people with super powers, huh? Can't have that,' thought Spider-Man. He quickly surveyed the area with his night vision that he got the hang off a year ago.

'All four of these clowns have AK-47's, while that big bad dummy has two Uzi's. I like a challenge but it might be smarter for me to do a Batman and use stealth here.'

"I've got a real important techno stuff for the Big Man," said the boss as Harry suddenly payed attention again. "Montana, your with me."

"Right boss," said a man with a Texas accent.

"Beck and Gargan, watch my back while we're on the move, savvy?" Harry had to repress a laugh. 'I thought he was a mobster not a pirate!'

"And Max?" he growled to another of his stooges.

"Yeah boss?" the man said nervously.

"Stand there and look stupid," he said bluntly. Now Harry had to bite his fist to keep from laughing.

"All right you mutts, follow me!" said the leader as three of his men started following him. Harry waited for them to get a good distance away and made an attack. Spider-Man then web-zipped onto a steel girder and got directly above the lone man. He then carefully took aim and shot a web at Max's feet and quickly yanked him up as the man dropped his gun in shock. Spider-Man then quickly webbed him up to immobilize him.

"Don't worry," said Spider-Man in a friendly voice. "You only looked like a bloody idiot for a few seconds."

Suddenly he realized that he completely enveloped the man in his web and quickly lowered himself to rip open a hole for him to breathe through the nose.

"Note to self, make a web batch that's breathable," said Spider-Man. "Now to catch up with the rest of them. He silently walked onto the girders and jumped on the next one and saw another gunman below him. He repeated what he did before and whispered to the man,"Next time, don't look so stupid."

He walked further and saw another gunman and web-zipped to the ground when he started walking the opposite direction from him. He shot a web at the guys neck and yanked towards himself as he started spluttering and then quickly grabbed him by his neck and slammed him to the ground and dished out brutal punches that knocked the man out.

Spider-Man then jumped up and web-zipped him back onto the steel girder. It was then he heard a train coming and the gang people quickly got on it. Spidey himself got on the top of it and and started humming his theme song as the train moved.

"Spins a web...any size...catches thieves just like flies...look out...there goes the Spider-Man. I gotta find out who made that song and shake his hand, it's so catchy!"

Eventually the train stropped and Spider-Man swung to the top of a nearby building as he safely looked from above.

It looked like they were meeting with someone and as the big gangster gave a big box to him, the man disappeared.

"What the...that looked like appararating!" he whispered.

'I guess I've got not much choice except to go home,' thought Harry. 'But first.'

When the moment was right, he yanked up a goon towards and took him far away from his fellow gangsters.

He interrogated him, but got nothing from the man and was forced to go to Hogwarts very dejected.

It was a good thing too, his first Quidditch match was in two days and he had to be rested and ready.

Two days later...

"Ah, what did I do to deserve this?" asked Harry as he struggled to stay on his broom.

"Harry, quick, just jump onto one of our brooms," said Fred. Suddenly Harry noticed the snitch coming in close to him and pulled an evil grin. "You'll have to catch me!"

With a kamikaze-like yell, Harry made a free fall and caught the snitch in his right hand. "YES! I DID IT!"

Distinctively, he could hear Hermione scream,"YOU IDIOT!"

'Ah crap, how do I survive this...wait, I know! Levicorpus!' He was suddenly hung upside by his ankles, still grinning.

"Good old, Uncle Severus," he cheered. Fred and George flew up next to him and both said,"Are you mental?"

"Why yes, yes I am," said Harry seriously. "But only when I need to, otherwise it would have never have worked."

The twins grinned and said,"I like your thinking."

Afterwards, Harry and his friends were having tea in Hagrid's cabin with Hermione still looking mad.

"C'mon, I just wanted to win my first Quidditch match in a spectacular way," defended Harry.

"Your bloody lucky you weren't killed!" growled Hermione.

Harry gasped dramatically and said,"Hermione, That's bad language! Good, my corrupting of you is working."

Ron, Hagrid, and Neville laughed at the jab while Hermione still looked mad as an angry cat.

Eventually they left for dinner during which they noticed Harry having an evil grin on his face. "What are you smiling about, Harry?" asked Neville.

"Oh nothing...by the way do any of you like to play with your food?" asked Harry out of nowhere.

"Why?" asked Hermione narrowing her eyes.

"No reason..." he said mysteriously.

That dinner everything seemed to be normal until suddenly food suddenly came flying overhead each of the four house tables along the teacher ones and splattered them all with food. Pandemonium rang after that and then a food fight erupted somehow after a Gryfindor threw a cupcake at a Slytherin. Or some believed a Bertie Botts Every Flavor Bean was thrown at Dumbledore which started the whole thing. Either it was complete catastrophe.

After it was all over, he told his friends in secret that he had done it.

"Harry...you...you..." snarled Hermione with a look of flabbergasted anger.

"Oh Hermione, you have a noodle in your hair," said Harry taking it away.

"Don't dodge the subject! Don't you have any regard for your own safety or for the sanity of others?"

"I do, I've just learned to ignore it," said Harry.

"Harry, that has to be the greatest food fight I've been in my entire life," said Ron seriously.

Weeks past and it was now December. Harry was eager to go back home for the holidays, he would hopefully be able to investigate this "Big Man" more at home, though he wasn't going to like the winter weather which was getting bitter on his new suit.

"So what do you three plan on doing this holiday?" Harry asked one afternoon.

Hermione informed him that she was going back home to her parents while Ron and Neville were staying at Hogwarts. "Well, I'm gonna go back to my aunt's for the holiday. Maybe I can finally figure out who this "Big Man" is."

"Harry, I know I sound like a nag, but don't you think you should take it easy, it's Christmas, you should take a break from this, you know," said Hermione looking worried.

"I agree," said Neville. "You won't be able to fight and go out as long in the cold, besides you might end up catching a cold yourself."

"Well, I guess you've got a point," frowned Harry. "Fine, I'll cut down on my patrol's. Hopefully, the bad guys won't do anything rash and take a holiday themselves.

While this was going on, an experiment was taking place with the Big Man watching.

"This will work right?" he said to a nearby scientist. "He," the man responded nervously. "This should be able to bind his physical structure to the sample we choose."

"Excellent," said the Big Man, touching his bowler hat.

Well, that ends this chapter. Now people, I've got some news for you. I've got several ideas and spider-Man arcs from the comics/movies/shows/ that will be incorated here as time goes on.

So far three that will happen no matter what...

.Harry will get one new spider power close to the end of each year.

.Harry will get the Venom symbiote during third or fifth year.

.That Voldemort will become a Spider-Man villain

Other things that may happen are:

.The Other Arc(Where he dies and is reborn.)

.Clone Saga

Identity Crisis

.Harry will somehow get a giant robot.(Like from the Japanese Spider-Man tv series.)

.Harry will keep a trove of different spider costumes with different abilities and strengths for different missions and fights.

.Six-arms saga along with mutation into Man-Spider.

Amazing Friends(Where Ron, Hermione, Neville, and possibly Luna and Ginny gain powers and create a super hero team with Harry.

Captain Universe Arc(During 7th year when the wizarding worlds needs a hero more than ever)

.Sinister Six saga(Obviously during 6th year)

If you have arc ideas of your own, feel free to inform me.