Doom Days (Harry Potter/MCU Crossover)

Pre-Chapter A/N: I think we're at the point where it is officially no longer cool to say Happy New Year! Either way, I hope you're all still keeping up with your new year's resolutions. I'm just getting started on mine (still). Here we go with the third chapter of 2025. Lovely to have you all here, and I hope you enjoy this one. If you do, feel free to head over to patreon (www.patreon.com/Oghenevwogaga) and read the next two chapters- I update there on a daily basis so there's always something for you to read. It's also a new year, so this is probably the best time to buy an annual membership on my page, if you're the kind of person that would do well with one. Have fun. 

In the end, it had taken two days to smuggle Sirius into the castle, and into the Room of Requirements. Two days. Not a lot of time for Muggles, but for Wizards, spending so long in travel might as well have been an eternity. That made sense, though. Cross-continental apparation was possible for a select few, and those without the power to attempt it could rely on Portrays that could take one all the way across the world in a manner of seconds. It was another way that we stood above our muggle brethren, but unlike in the Muggle world where quicker transportation and communication had encouraged inter-cultural socialization and exposure, the opposite had happened here. Because of how easy it was to travel, distance did not matter much to wizards and traveling didn't hold any appeal. 

There was nothing exclusive about it. All wizards but the destitute could afford a journey by portkey across the world. Sure, there were places that charged for entry, like the Pyramids under Goblin control, but those were few and far between and there was enough prejudice against Magical creatures that the average wizard would not even consider it an option. But that was beside the point, I was trying to zone out of another one of Sirius's tales about his escapades in the castle. 

"Yes, Sirius, for the seventh time, I understand what you would have done to Turpin, and Chang, and Hillsong, and the dozen other witches you've mentioned in the last five minutes if you found out about this room during your time here" I said with a sigh. I had been content to zone him out and allow him to speak for the time being, but once he started using the control I'd granted him over the room to generate "Play objects", I had to step in. 

"Spoilsport." He said with a sigh before he collapsed onto a couch that appeared out of thin air to catch him before he hit the floor. 

"Back to the matter at hand, I was stating that you would need to stay here for the moment while I worked to prove your innocence and secure your freedom" I said. 

"And how exactly are you going to do that? Dumbledore himself can't do anything unless we capture Pettigrew, and to be honest, I'd rather kill the rat than trade him for freedom." he asked. 

"Well, I have a plan of my own that doesn't require Pettigrew?" 

"What? Kidnapping the minister?" He said before bursting into laughter that I didn't join him in, instead choosing to look in the other direction. 

"Harry. Harry, you can't kidnap the minister" He sounded genuinely worried that I'd been cracked in the head. 

"Harry, can you hear me? That's a one-way ticket to Azkaban and I don't think you're awesome enough to escape like yours truly" At that, I lost the fight with the laughter I was holding in. 

"You were never planning on kidnapping the minister, were you?" 

"Of course not. Who do I look like to you? A Black". 

"Well…" 

"Save it. You see, I've been reading the ICW charter recently. Just had my curiosity piqued with so many foreigners lurking around the Castle, and I've found something that might be of use to someone in your… let's call them unique circumstances". 

"Spit it out then, don't leave me on the edge of my seat forever." 

"The ICW predates the ministry by a fair bit. In England, at least. In fact, the ministry was created to fulfill ICW mandates for protecting the Statute of Secrecy. So when it comes to England, there was no ministry to sign the Charter, so the six most prominent wizarding families at the time stepped up and did the signing: Gaunt, Black, Nott, Parkinson, Bones, and Prince, to be precise. As a signatory to the Charter, you have some benefits under the ICW- one of which is the right to appeal to the court for redress at any time. Now, this wouldn't work in most nations as their ministries have specific provisions either in their charters or other laws to prevent that kind of thing-that is, you don't get to skip the local court all the way to the ICW. But the British ministry, for whatever reason, has no specific provisions of that nature. Probably because the six families with the right to apply to the ICW courts for redress wouldn't want to see that right taken away, and they had more than their fair share of influence with the ministry. This only becomes useful since you were never actually convicted of…" 

"Okay, I'll stop you there and say you're losing me. Just explain how this all helps me" He said, and I had to resist the urge to frown. That hadn't been a complex explanation, and Sirius had definitely been of above-average intelligence before Azkaban — he had the NEWTs to prove it. I guess, that was another point in favour of getting him to a mind healer as expeditiously as possible. 

"Fine, to put it simply, since you never got a trial, we are going to sue the British ministry for illegally placing you in Azkaban for 12 years and issuing an illegal warrant for your arrest" I said, and he laughed once more. 

"They'd arrest me the second I showed my face" 

"They'd try to, at first. But the warrant won't apply in Geneva, where the next session is scheduled to hold. You will apply to have your case heard, and then the ministry would have to present a representative to argue against your case in three days after that. The entire thing will have to be resolved in a single session, and we will be locked in there until the matter is resolved." I said, and then he turned apprehensive. 

"What if we lose the case?" He asked with a fragile smile on his face. 

"Well, in that unlikely situation, we leave the Conference and return here. We're not having a criminal trial, so even if the ICW holds that the ministry were allowed to issue a warrant for your arrest, then it wouldn't matter because the warrant still wouldn't be valid in Geneva." I said, and this time the smile he gave me was much more genuine. I sensed the emotions behind it, so much that he could not say. 

"That's enough of that, though. I need your help asking a girl out" I said, defusing the tension and making him bark another laugh. 

_ 

"And you're sure this will work" I said, not even trying to hide the doubt in my voice. 

"Which one of us has decades of experience with women?" He retorted 

"Neither of us. You had a single decade, and then 12 years in Azkaban. Surely, the dementors don't count" 

"Well, I assure you they took only a single look at me and wanted to suck me off so you can doubt my charm all you want." 

"First of all, ew. Secondly, ew. Thirdly, fuck you very much for that image in my head" 

"Language, young man" I returned his interruption with a deadpan look that made it clear how unimpressed I was. 

"Well, I haven't got any better ideas and this girl already seems to want me so I doubt there's much this could do to make her say no. I'll modify the spells a bit though" I said. 

"Why?" 

"Because this might seem like impressive magic to you, but someone with my ability can, nay, must do more" 

"When did you manifest such a massive stick up your arse?" 

"The same day you manifested a dildo up yours" 

"Heyyy" 

"You started it. Now, I'll be on my way now, but I have something for you to do." 

"I knew it. You didn't bring me here for my own good, you brought me here so you could take advantage of me. Oh benevolent Room, please come to my aid and save me from this deviant". 

"Haha…so funny. Take the instructions, would you? I have my potioneering set and ingredients stored here so you just have to ask the room for whatever you need." 

"And whatever do you need a blood replenishing potion for, James?" I silently took note of the slip but did not point it out. It explained how easily he'd slipped into banter with me. 

"Standard bloodletting ritual" I said blithely. 

"You're joking" 

"Earnest, I assure you." 

"Because Crouch escaped with your blood?" 

"Precisely." 

"Where did you even learn about something like that? And don't say the restricted section because there's no chance Dumbledore would have that kind of information floating around the school". 

"And yet you know about it?" 

"I'm a Black" He said like it explained everything, which it sort of did. 

"This room gives access to information on whatever one might need. My best guess is that it gave me the book I found the ritual in directly from Dumbledore's own library. Either that or someone just dropped a valuable tome of rituals in here and never bothered coming back for it" I said with a shrug. 

"I don't think this is a good idea." 

"Noted. Now get to brewing." 

"Have you gone to Dumbledore?" 

"No. And neither will you." 

" — " 

I kept my eyes locked on him until he nodded, showing his understanding. Sirius was not like most wizards who had been a part of Dumbledore's Order. He was a Black. And no matter how he denied the effects of the name on him, Tom Riddle had attended Hogwarts around the same time as Alphard Black, and the similarities between the two were not merely physical. Sirius had a wicked sense of humor, and a mean streak a mile wide. He had been the one to tell Severus Snape just how exactly to sneak past the Whomping Willow, and he was far too smart to not know what exactly that would have meant for the boy. He knew it, and didn't care — in fact, he'd probably wanted Snape to get bitten. 

That was why I was telling him about the bloodletting ritual. It was a test. If I were right, he wouldn't say a word to Dumbledore. If I wasn't, then he'd snitch and I would know. The Bloodletting ritual wasn't illegal — sure, it was dark magic but not something that was expressly forbidden like the unforgivables. It was just highly frowned upon, and it wasn't like the esteem the headmaster held me in could get much worse. I'd assumed the speech at the first task to be the end of it, but the incident with the aurors had made me certain that Albus Dumbledore would not be protecting this version of Harry Potter for whatever reason. It also meant that I had needed to sort out adult support to make things go my way — which is were Sirius came in. 

For the duration of the tournament, I was a magical adult and so I could act with impunity. After that, I would be like any other minor — subject to my guardians. Wizarding law said that muggles couldn't serve as guardians. That made the Head of House my presumptive guardian and the Headmaster my guardian in truth. I liked Mcgonagall, but she was Dumbledore's woman through and through. 

All these thoughts occupied my mind as I made my way down from the seventh floor to the Great Hall. Dinner should have been in full swing already so there was going to be a large crowd to witness what I was about to do. All for the better, I thought. A part of me was forced to acknowledge the possibility that this was all one massive prank and Delacour would just allow me to make a fool of myself and then refuse me in the public space with students from the three top schools in Europe watching. It would be continental news almost instantly. Surely.a good way for an ambitious witch to catapult herself into the spotlight. 

If it were a prank though, she would regret it most dearly, I thought as I waved my wand above my head and drew every eye in the Great Hall to my position with a loud bang. 

I took a breath and allowed magic to effuse every fiber of my being as I prepared the spells I was about to unleash. Sirius had been a prankster and womanizer of legendary renown back in his day. That meant he had bits of magic just waiting to be adapted to whatever situation he had to adapt it to. What I was about to use was one of those bits of magic — except scalded up suitably. I walked further into the hall making a beeline for the Ravenclaw table where I could see her sitting with her friends. Her eyes met mine and I spotted the small smile that began to build on her lips. When I reached the table, I jabbed my wand at the end of the table and subvocalized a single word, Orchideous, even as I visualized a unique outcome. 

Flowers began to build and encircle the table as they began to spread. Jabbing my wand into the table again, I commanded another set of flowers to begin to grow from the other end. Circular wreaths of flowers formed along the tables edges as they began to travel towards the center where Fleur was seated almost as one. I cleared my mind with practiced ease and began preparing the next spell in this series. 

XXXXXX- HERMIONE GRANGER 

Well, she had to say she didn't see this one coming at all, She thought to herself as she watched with stilled breath as Harry worked his magic. She'd asked if he was taken Fleur and when he had said he wouldn't be, she believed him. But now she was forced to wonder whether he had changed his mind or if he had just lied to her. She couldn't see any logical reason for him to lie but that didn't mean that he hadn't. It just made it more likely in her opinion that he had changed his mind. 

He waved his wand once more and the flowers that were growing around the Ravenclaw table and surely disturbing most of the house's dinner grew at a faster pace before stretching towards the French witch in a bouquet of Roses, red and white, spread in equal amounts. That might have been sufficient for anyone else, but clearly not her best friend as he pointed his wand at the ceiling next. Charmed to resemble the Night's sky at night, the ceiling had been charmed into a standard sunny, if slightly overcast day. 

The bolt of red light that left Harry's wand dug into the clouds for a few seconds before forcing the clouds to begin to shift. She, and the rest of the hall it seemed, watched on awestruck as the very clouds in the ceiling's replica of the sky shifted to spell out a single message; Fleur Delacour, Will you accompany me to the Yule Ball?' 

"Oui, Oui, A thousand times Oui" The Veela said as she jumped from the chair to enclose Hermione's best friend in our arms. Hermione silently wondered if she knew who she was quoting. Did they have Jane Austen in the wizarding world? She doubted it. Especially because the woman's work was post statute of secrecy. On the other hand, she could very well have been a witch. Shakespeare and Dostoyevski had been wizards after all. She silently noted it down for further research, while silently bemoaning (and rejoicing) that her list never seemed to get shorter. Tick one off and two take its place, she silently concluded. Like a Hydra. Hail Hydra, she thought, almost laughing to herself at the reference that none but her in the hall would recognise. Who would think that Hermione Granger would read American Muggle comic books of all things? But reading was reading, and whenever her parents got on her case to read something fun, comics were a fair recourse. 

Harry, possessed of strength that she struggled to fathom, somehow managed to lift the taller witch into his arms and twirl her in the air. "I can't believe he got her to say yes. Gets everything, he does. Fucking Harry Potter" She heard the muttered words, Ronald Weasley did not have many talents and whispering discreetly was not one of the few he had. She ignored him just like most of the House had begun to. She'd just managed to get into Harry's good books again, and regardless of what he said she knew her best friend better than he knew himself, and getting in the middle of this particular tiff would not end well for her. 

When he finally set the Veela down, she placed a kiss upon his cheeks and stepped back. He did the same, stepped back that is, and nodded at her before twirling and making his way out of the great hall. She could just barely bury a chuckle as his robes billowed in the air behind him as he walked away. Turning to the Potion's Master, she could see the man looked like he'd just swallowed an onion. 

"A hundred points from Gryffindor for disturbing dinner" The surly potion's professor shouted after her friend. 

"Professor Snape!" That was her indignant Head of House. 

A/N; That's the chapter, it is. Sirius is going to play a unique role in this story as I predict he'll form a good chunk of Harry's social interaction. Sirius doesn't actually know Harry that well so he's barely going to notice whatever changes exist, and even if he does, what's he going to do? Of course, Doom will have to come to trust the older man on his own, and that will not be an easy hurdle to cross, still he sees the potential of having a magical adult with significant wealth and status on his side. The Fleur scene? Well, I like Fleur and I'm using. Author-fiat to make her the first major love interest in this story. I doubt she will be endgame, but it's too early to say. 

As always, the following two chapters are up on pa-treon. If you just want to read complete chapters and not my work in real-time, then feel free to purchase this story as a collection on my patreon (www.patreon.com/Oghenevwogaga) page so you get to read each chapter after I finish it and not neecessarily the daily updates available with a regular patreon (www.patreon.com/Oghenevwogaga) membership- nice way to support this story and me while you're at it. Enjoy!