Chapter Summary: Prompt by pbd0910: "I don't know why but I love this one shot so much 3 And also, since you're taking prompts, I'd like to ask a Hogwarts\hp AU. It would be awesome"
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28. The Wizarding World of... Multiverse?
It was a nice Saturday afternoon and since everything was in control at DEO and there was no sign of the third World killer or Reign, Kara took some time off to visit her friends on Earth 1. They had just won a huge battle against an evil guy named DeVoe and all team Flash were celebrating at Star Labs.
- I'm almost afraid of celebrating… Because every time we do, something bad happens. – Barry commented as he approached Kara and Cisco.
- I know what you mean. – Kara looked at him – We are still fighting world killers back on my Earth, and there is so much going on… All of this right after Daxamites tried to dominate my world. I just wanted some vacation…
- Me too… - Cisco said as he looked at the door, with a worried look in his face – I smell trouble…
- Hi to you too, Cisco! – Sara said as she entered the cortex with Ray and Zari.
- Hi – Cisco gave her an awkward smile. – I'm sorry it's just that… You guys never visit, except when there's some trouble…
- We would love to visit more, but there's always some idiot messing with time! It's always up to us to fix it! – Zari said, looking at everyone else in a funny way – What?
- Nothing… - Barry said as everyone kept staring at him. – So… What's up guys?
- We have a problem. Call Oliver! – Sara said as she reached for a chair and sat down.
- I told you! – Cisco laughed but suddenly stopped after the look Sara gave him.
- I have a better idea…
Barry vanished and seconds later, he came back with Oliver that looked like he was going to vomit.
- BARRY! – Oliver said as he looked annoyed, closing his eyes and trying to breathe.
- I'm sorry man… It seems urgent…Sara asked to call you…
- And what do you have against phones?
- I thought I could save time…
- Ok…
Oliver lifted his hand closing his eyes, still catching his breath and then, he opened his eyes. The first person he saw in front of him was Kara, and this took him by surprise. Kara smiled shyly at him that only nodded with his head at her. He was not expecting to see her again anytime soon and suddenly he felt really warmth on his stomach, something he chose to ignore.
- I have been through some shit in my life, but this time around… I can't even – Sara scratched her forehead.
Kara looked at Caitlin and then at Sara, feeling worried. She always felt like Sara was this badass that could face anything, and if she was that worried it was because things were really bad.
- I'm glad to help, since I'm here anyways… - Kara said, smiling at Sara, that smiled back at her, with relief.
- Thank you, Kara. We will need your help…
- So what's so urgent? – Oliver asked crossing his arms on his chest.
Sara looked back and saw Constantine coming in. She looked at Oliver and smiled.
- I will let him explain…
- Constantine? – Oliver asked surprised and walked to greet his old friend.
- I wish we could chat under better circumstances, mate – He said taking his cigarette on his fingers.
Kara coughed loud and pointed the thing on his hand.
- Could you…please? – She said
- Sure, love! – Constantine blinked at her and scraped the thing off. – My bad. – He turned to Oliver and scratched his head – Well, my friend Zatanna and I were… training together. She is a talented magician and we were after this demon Etrigan… She accidentally opened a portal to another Earth… I had no idea there was more than one…
- There are 53… - Harry said and Constantine looked startled at him.
- Whoa!
- So… Your friend is trapped on another Earth? It happens… - Barry looked at the rest of them and Kara smiled, remembering when she met Barry by accident when he ended up on her Earth.
- Not like this my friend… - Constantine said and looked at Sara and Ray.
- According to Gideon, he is on Earth 25… in Hogwarts! – Ray smiled looking really excited about that.
- WHAT? – Oliver, Kara, Barry and Cisco yelled in unison
Kara looked at Ray, waiting for him to tell them it's just a joke, but the joke never came. She looked around. It looked like Harry Potter was a big thing on Earth 1 just as much as on her Earth. Cisco had a look on his face like he was going to pass out, the same look Barry had. Oliver just looked intrigued, and made Kara wonder if he knew what they were talking about. He did not seem the kind of person that would be into wizard's stories.
- Are you telling me that Harry Potter exists? LIKE, FOR REAL? – Cisco said as he ran towards Sara, looking at her like a crazy person.
- Calm down, fan boy. Yes, it is! – She said as she looked at the others – Believe me, I was just as surprised as all of you are right now…Specially with Ray and Nate fangirling over it.
- Also, Gideon informed us that Etrigan managed to get there, don't ask me how, that bloody demon is so nerve wrecking… - Constantine said as he walked from one side to another. – Now we have to go there and help…
- So you guys are going to Hogwarts to save a magician from a demon… That is something I never thought I would say in my life… - Iris said as she looked at Barry, that hugged her.
- I'm sorry… I have to – Cisco smiled and ran away, coming back with a black robe.
- That's a… Ravenclaw robe? – Kara said as she pointed at the symbol on his chest.
- The house of the smartest people! My gang! – Cisco crossed his arms and Kara and Barry came closer to him.
- This is so cool. – Barry said.
- I can't believe you are going to wear this…
- We are going to Hogwarts… REAL Hogwarts. I wouldn't miss this opportunity in a million years!
Oliver watched Kara get all excited about it, guessing that it was a big thing on her Earth as well. He approached the excited group.
- Guys… We need to focus… We have a demon to fight and a person to save…
- It's ok. We can do both: the mission and get excited over it – Kara smiled at him.
- I didn't know Harry Potter was a thing on your Earth…
- Are you kidding me? It's huge! – Kara smiled as she looked at the others. – I just hope it has the same ending here as it has there…
- They beat Voldemort…
- Yes.
- Lupin, Tonks, Fred Weasley dies…
- And Hedwig – Kara added
- Yes – Cisco said
- Harry and Ginny marries and have kids, Hermione and Rony also marries and have kids…
- Noooo! – Kara covered her mouth with her hands.
- What do you mean no?
- On my Earth, Harry and Hermione ends up together. Ron marries Luna… Ginny plays for Chuddley Cannons and becomes a famous player…
- What? – Cisco and Barry look at each other confused.
- I was also not expecting this… - Oliver said and Kara looked surprised at him.
- You? Do you know it?
- I've read the books…
Kara and Barry looked shocked at Oliver. Oliver looked back at them trying to understand their faces.
- I'm sorry, I'm really shocked now… - Cisco said – More than hearing about how Rowling of Earth 38 is nuts!
- Just a bit – Kara crossed her arms on her chest.
- Is now like ours here is any better, I mean… - Caitlin said
- Oh… that – Cisco said knowing exactly what Caitlin was talking about.
- Ok, I am sorry to interrupt this fan moment of yours…but we need to save my friend… - Constantine said as he came closer, looking annoyed at them.
- My bad! - Cisco smiled awkwardly as he opened a breach. – Wizarding World, here we go…
One by one, heroes from Earth 1 crossed the breach to Earth 25. Oliver still couldn't believe what was happening. He thought about how much William would freak out if he knew.
EARTH 25
The breach opened just outside the gates of Hogwarts. They were closed and really tall. They all stood there, looking up in awe. It was just like the movies, Kara thought feeling really excited. She looked to Barry and Cisco, who was in the verge of crying of happiness and smiled. She knew they were here in a mission to catch some demon, but it was all really exciting.
- It's just… - Cisco said in awe – It's so…
- I know… - Barry said with the same tone.
- We need to focus! – Sara said as she looked annoyed at them – I understand this is overwhelming for some of you, but please… We came here to stop a demon… In my case, again!
- Well, love, you opened the gates of hell! – Constantine said lightning up a cigarette.
- I'm afraid smoking is prohibited at the grounds of Hogwarts, Mr. Constantine.
They all heard a voice and a shadow approaching the gate. Cisco looked like he saw a ghost.
- It's Dumbledore man!
- I… I know!
- Stop with the fangirling! – Sara whispered to them – I swear to God…
- I'm sorry, sir… How do you know us? – Kara said as she tried her best to stay calm.
- I know everything about you! – He said calmly. – Please, come in. I also know why you are here. We can talk in my office.
They all followed Dumbledore to the huge statue that lead to his huge office.
- Pepper mint! – He said and the statue moved, showing a staircase
He smiled while everyone followed him. Once in his office, the ones who actually were Harry Potter fans just kept staring at everything in awe, while others were really confused.
- This is weird… - Oliver said as he looked around – Cool, but weird…
- I understand, Mr. Queen. It's weird for me too; I must confess… - Dumbledore as he adjusted his glasses on his nose and sat on his big chair. – One great wizard once came to me with the multiverse theory. I thought he was under the effect of butterbeer but once Zatanna came in, talking about a demon from another dimension and how she needed help, I imagined he was telling the truth… We have magic but don't have any means of opening portals to another Earths or universes; no one even knows it exists here, so I had to give Zatanna a position of a Hogwarts teacher until we could figure things out.
- Zatanna told you about us? – Sara asked, feeling a bit confused
- No, actually our Divination teacher had a premonition saying that heroes from another universe would have an epic battle with the devil… Something like that, she's cryptic sometimes…
- I bet it was Trelawney! – Cisco whispered and Barry nodded with his head.
The door of the office opened once again and a blue eyed brunette came in, dressing tight black leather pants, a white shirt and black coat tail. She smiled widely and hugged Constantine.
- Dumbledore said you were coming… I'm glad!
- Zatanna love, I'm glad you're ok. – Constantine said as they shared a small peck on the lips, making half the room look surprised, but no one said a word.
Oliver took a few steps towards them, and looked from Constantine to Zatanna.
- Glad you're ok. – He smiled at her – I'm Oliver Queen, it's nice to meet you, but we need to think about a plan to whatever it's going on here… Because I'm a bit lost… And I think I'm not the only one.
- Nice to meet you… - she smiled back at him and then looked at the others. – Well, since the gates of the demon's prison were opened, we were training to capture them when I accidentally got trapped over here. And Etrigan is here, so we need to complete the mission…
- Oh…kay! – Sara said as she scratched her head.
- The mission is to trap this demon, take him down and go back home, right? – Kara asked thoughtfully – I never faced a demon before, just a few aliens that looked like monsters…it must be similar…
- I think it's a bit more complicated… You see, he is a good demon naturally. But he got corrupted by another demon. We need to bring him back to the way he was before becoming evil. Because he is powerful and it will take a lot of us to take him down… And, I'm sorry love, how did you face monsters again? – Constantine said as he looked curiously at Kara.
- I'm an alien! – She said crossing her arms on her chest – I have super powers… and… - She walked closer to Constantine, tapping on his shoulder. – I'm not your love! – She said as she turned around just to see Oliver smile, almost like a laugh as he looked at Constantine's annoying look. – Great, so we capture him and make him a good demon again… Rao, this is weird to say out loud…
- Feel free to stay as long as you need. But don't forget, this mission needs to be a secret. We don't need the Ministry of Magic interfering… Especially now they are with their eyes close, watching our every move. We just had the Triwizard Tournament and things are still a bit…
- Because of Voldemort… - Cisco said as he looked at Dumbledore, still finding it hard to believe it was all happening like that.
- Yes. – He said in a serious tone. – I'm aware in your world we are nothing but characters on books… But I might ask you to please, don't say a word about it, about what happens…
- About the future…Your future – Barry said as he took one step closer.
- I know you can understand it better than anyone, Mr. Allen.
- Yes, sir. I do. – He looked at the others
- Ok, we will try not to mess things up… - Ray said.
- Because that's what we do best – Zari said as she looked at Ray.
- Not with the rest of us with you guys – Oliver said and he looked at Dumbledore – You have our word. We will keep our mouths shut.
- Thank you.
Dumbledore suggested them to use the Room of Requirement, a place that could transform into any place they needed with anything they needed. For them it was like an apartment, full of beds, a kitchen, bathroom and a living room. It was night, so they all gathered to plan.
- We need to kind of exorcize Etrigan, but he is evil now and too strong…
- Guys, I'm telling you, I can take this demon! – Kara said. – I can hold him long enough for you to do it…
- So this might be actually not that hard… Supergirl capture him and Zatanna and Constantine hold him in place… - Cisco was talking but got interrupted
- And why did the rest of us have to come? – Mick said not in the mood for doing anything else than drinking the beer that appeared on his hand. He was starting to like this wizard thing.
- Because things can get really ugly and we don't know what we will face here… We are in a world where evil wizards kill people and where magical creatures exist… - Cisco said and stopped talking.
- What? – Barry asked
- It's just… We are between books 4 and 5… Voldemort just got back; the Ministry of Magic is interfering here… We don't have a lot of time before things gets really ugly… Dumbledore asked us not to talk about their future… So it must be exactly like the books…
- We need to be really fast, so we won't interfere… - Kara said as she looked from Oliver to Barry.
- We will be! – Oliver said as he smiled at her, trying to be confident.
The next day, Kara and Oliver were walking on the grounds of the school. They have divided themselves in teams so they could try to find Etrigan faster. Kara and Oliver were with Barry, Ray and Cisco looking for him on the grounds, near Hagrid's hut. It was a bit cold so most students were inside. They all wore wizard clothing and created a story about how they were doing a job for Dumbledore in case anyone asked.
- This feels weird – Oliver said as he looked at his robes.
- At least we can have our suits underneath it – Ray said – It would draw too much attention and we don't want that!
- It looks good on you, Oliver – Kara smiled and blushed as she looked to the ground.
Oliver just smiled at Kara and they kept walking when Kara stopped abruptly.
- I hear something…
- Go – Barry said and Kara took the robes off, staying in her suit.
- So much for not drawing attention… - Oliver scratched his head.
- We tried man… I knew it wouldn't last… - Barry followed Kara, leaving Oliver behind.
- I hate that I can't keep up with them… - He said
- I know, right? – Ray said smiling at Oliver as he suited up and flew to the action.
When Ray got to Barry and Kara, Barry was running in circles and shooting lightning bolts at a horrible figure and Kara was protecting three students with her cape, using her freeze breath to take down the fire that creature tried to shoot them. Ray shoot in Etrigan's direction making him scream in surprise and Kara took advantage to punch Etrigan, knocking him down. Barry ran to him, grabbing him by the arm while he was out.
- Guys? – Kara said in her comm, trying to reach the others – We got him.
- Bring him to Dumbledore's office! Zatanna and I are trying to find the ingredients of the potion to help with the exorcism… – Constantine said in a hurry.
- I got this – Ray said… - Cisco, can you breach me there? I think you guys have a lot to explain to those three… - Ray pointed behind Oliver and Kara as he held Etrigan by the other arm.
There, looking like they were hypnotized stood Harry Potter, Hermione Granger and Ron Weasley.
- Shit! – Cisco said, scratching his forehead – And… Awesome! Ok, I don't know what to feel right now… the trio is there, and they saw us… and…
- Breathe Cisco. We screw things all the time back at the Wave Rider. – Ray smiled – Just accept it and embrace it… Things will be better… And I think we can trust them… They are good with secrets.
- Good point! – Barry said.
- Ok, go! – Cisco said, and opened a breach so Ray could bring Etrigan straight to Dumbledore's office. – He turned around and the trio stood there in awe.
- Do… Do you know us? – Ron asked, not sure about what to say.
- And who are you? – Harry asked, taking a few steps forward.
- This is going to sound crazy… But we are from another universe… - Barry said, unsure of how to explain them about it all.
- So… the theory of the multiverse is real? This is brilliant! – Hermione smiled, taking a few steps closer to them as well.
- What? – Ron looked confused at Hermione. What the hell was she talking about?
- Honestly, Ron. You need to open a book for once in your life!
Barry looked at them and whispered at Cisco, feeling excited again.
- I love this dynamic…
- Me too – Cisco whispered back, looking at them.
- It's the theory of multiple Earths existing at the same time but they vibrate at a different frequency so they cannot interact with or be seen by each other. But if one is able to travel fast enough it's possible to breach the laws of physics and travel between Earths! – Hermione said in an exciting tone.
- Wow. – Harry said as he had the same look Barry, Kara and Cisco had on their faces.
- That's my girl! – Kara whispered.
- I saw you open something like a portal… what was that? – Ron asked, feeling equally scared and excited.
- I can vibe through different dimensions and create breaches to other places or different Earths.
- That's so cool! And you… - Hermione said as she pointed at Kara.
- I'm an alien from a different Earth than them.
- Alien? – Ron said looking a bit frightened to Kara.
- She is one of the good ones – Barry smiled as he looked at Kara.
Kara heard Constantine's voice on her comm warning them they were going to exorcize Etrigan with the potion the rest of the Legends helped them with. Kara asked if they needed her and he said it was ok, she helped a lot.
Since this part of the plan wasn't her specialty, Kara joined Oliver and Barry at the really empty Great Hall.
- I'm sorry I left you behind like that… - she looked at Oliver, trying not to laugh. It was always funny when she got to use her powers near Oliver - I heard Etrigan attacking them, I couldn't let anything happen to them, especially Harry and Hermione.
- Why them? – Oliver asked with a confused look in his face.
- They are my OTP.
- What?
- Never mind… They are a great couple… - Kara said with a dreamy look in her eyes. Barry and Oliver looked at her like she was a crazy person.
- Ron and Hermione were the obvious choice, Kara.
- Yes, they were – Oliver looked at Kara.
- I won't argue with you – Kara laughed as Cisco approached them.
- Look at that, Oliver Queen is a Harry Potter fan!
- I've read the books, I told you…
The big doors of the Great Hall opened and Constantine joined them with Legends, Caitlin, Etrigan and Zatanna.
- It worked? – Kara asked as she noticed Etrigan was way calmer and looking peacefully at them.
- Yes. He needs to rest now, but will be good as new by tomorrow.
- I want to thank you for managing to complete the mission and keep Hogwarts safe – Dumbledore entered the room, looking at them – I knew you wouldn't be able to hide that well from everyone, but I'm glad it happened in front of Harry and his friends. They are trustworthy… But in any case, we will obliviate them…
- I think is a safe decision – Sara said as she looked at Barry, Kara, Oliver and Cisco.
EARTH 1
Kara and Oliver were outside the Star Labs. Oliver was about to get his bike and go back to Star City and Kara was about to open the breach back to her Earth. They were the only ones left. Oliver approached Kara and she hugged him.
- You know I can make you hug me, right? – She laughed.
- I know… I'm avoiding that – He teased back. – I… Hum… I'm curious…
- About?
- Why them? I know things ended different on your Earth, but why do you like them?
Kara looked at him, thinking for a while. She then, smiled at him as she looked intensely into his eyes.
- Great love stories are born from great friendships… Sometimes you think about what is missing in your life, that special someone you can trust, you can count on, that will fight for you and beside you… and you can't see them right in front of your eyes. And you realize, you already have all of that because you have an amazing friendship. And you see it can be something more, something great… Something that will add to everything great you have in life… They are like that to me. Something I would enjoy having it on my life…
Kara smiled as she opened the breach and stepped in, waving goodbye at Oliver and leaving him thinking about her words.
They hit him like nothing has ever before. And it made him realize, it made sense… And that he also wished for that.
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NOTES 2:
Spoiler Alert:
Prompt by orthankg1: "How's this, it's a bit AU. Lena and Oliver are togeather, they are all living on the same Earth, with Kara as Lena's best friend and assistant who has a massive crush on the boss's boyfriend. Oliver likes Kara, but just as a friend. No one knows that Kara is Supergirl and Oliver is the Green Arrow, he has a lead lined hood, who ocasionally save the city togeather. Supergirl save Oliver as Oliver. Long story short. Kara likes Oliver, Supergirl likes the Green Arrow, Oliver develops something of a crush on Supergirl, and Lena is the wonderfull girlfriend/friend who thinks there is something going on with the two, and it's all one big complicated mess."