Intervention

When Hermione leaves with Ron, abandoning Harry by himself in the tent, Castiel senses that something has happened that will have a dramatic effect on Harry's life. So, he pulls Dean and Sam Winchester from America, and into an all new world.

A/N: This story takes place mid-season 4 for the Winchesters, and I have not seen post the first episode of Season 5 for Supernatural so please don't spoil what happens next. This is also an AU in that aside from the obvious fact that both Hermione and Ron left the tent, Harry also knows about the taboo on Voldemort's name, and Hermione took Harry to the Forest of Dean with Ron early on, rather than later in the storyline.

As it stands, I currently have no pairings planned for the story, but I can say for certain there will be no Slash, and bashing will be kept to a minimum if there is any at all. Chapters will normally be between 1500 and 2000 words in length, maybe longer.

I

Two Leave, Three Enter

HARRY POTTER BLINKED, and blinked again. He'd just lost his best friends – Hermione and Ron, who had cruelly abandoned him after one night of low morale, leaving him alone and wondering what the hell he was going to do next, when three men, one of them wearing a trenchcoat, had just appeared out of nowhere before his eyes, looking just as confused as he was.

"Cas, what the hell?" the shorter man who wasn't wearing a trenchcoat, addressed the man who was – no doubt called Cas, which Harry took a bet at what was a nickname for something. "You can't just pull us out of nowhere like that! We were in the middle of a hunt! And who's the kid?"

"This kid," the man called Cas said, the word seeming foreign on his lips. "Is Harry Potter, and something has just happened in his timeline that should not have. I brought you here, to England – to fix it."

"Wait, we're in England?" the complainer continued. "You could'a told us that before!"

"This was an urgent matter. I had to drop you here at this precise moment in time," Cas said, "Or else a greater catastrophe far worse than the one that is currently taking place could have happened."

"Wait, there's a catastrophe taking place?" the taller man spoke for the first time. Both were American, that was clear from their accents, but Harry had no idea as to who the first one was. He felt like speaking, drawing his wand, and wondering how they got through their enchantments, but something stopped him. "I mean, aside from the hunt that we were currently on?"

"Yes. A Dark Lord," explained Cas, "An Wizard named –"

"Don't say his name!" Harry burst out, suddenly, not being able to stop himself.

"Why not, kid?" the smaller man spoke. "What's the worst that could happen?"

"Do not worry, child," Cas said. "Angels are not restricted by such taboos laid down by the laws of witches and wizards."

"Wait, a second. Did you just say Angel?" Harry asked.

"Yes," Cas nodded. "My name is Castiel, and I am and Angel of the Lord. My accomplices are Dean and Sam Winchester. They are both human."

Harry blinked. He knew of all sorts of magical creatures existing in the world, heck, he'd even fought a dragon, so the prospect of Angels was not so farfetched if one were to consider it. "But, wait a second," Harry said again, "If you're an Angel, doesn't that mean that there's a God?"

"Yes," Castiel said. "There is. But we Angels do his bidding, and he cannot answer for you right now."

"If there is a God, why does..." Harry paused, almost saying Voldemort. "Why does The Dark Lord exist?"

"Believe me kid, I've been dying to know that question. And not just your freaky wizard guy," Dean said. Were it not for the situation, Harry probably would have laughed. He doubted anybody had called Voldemort freaky wizard guy before. "So, how do we take this sonuvabitch down?"

"You're willing to help, then?" Castiel asked, clearly expecting more persuasion.

Sam and Dean both shared a look. "Yeah, why not? Although our weapons were left in America. Unless you can do your mojo and get us back again we're screwed."

There was a loud bang, and seconds later, a car appeared in the clearing outside of Harry's tent, as though it had been literally dropped from the sky with a wave of Castiel's hand. However, there were no damages on the vehicle, with it looking as good as new. "Whoa," Dean couldn't help but exclaim.

"I understand that you treasure your automobile dearly," Castiel stated. "Do not worry – there is no scratch, and all your belongings are there."

"There'd better not be a scratch," Dean said, running over to his car, and began to inspect the vehicle. Harry and Sam shared a glance at each other, awkwardly.

"So," Sam said. "Hi."

"Hi," Harry remarked back. And then he turned to Castiel, suddenly realising something. "Um, Castiel?"

"Yes?" Castiel asked.

"They're not... um, wizards are they?"

"Course not," Dean said, hearing Harry's question. "Do wizards drive Impalas?"

"No," Harry admitted. "So you're muggles then?"

"What's a muggle?" Dean asked, suddenly interest perked, reaching for his gun. "That some kind of insult?"

"Don't, Dean," Castiel warned. "You should know by now that not all witches and wizards are as evil as you believe. Most of the ones that you will meet in England are different types. Wand users."

"Wand," Dean deadpanned. "No shit."

Harry reached for his own, and displayed it to Dean, who looked at it in disbelief.

"You've got to be kidding me."

"Give them a demonstration, child," Castiel instructed.

Harry obeyed, casting Expelliarmus at Dean. His gun flew right out of his hands. When Dean scrambled to pick it up, with a shocked look from Sam, "What spell was that?"

"Disarming spell," Harry said. "There are a variety of other spells that you can use but I just chose the most basic one. A personal favourite."

"You wouldn't happen to have any books about magic, would you?" Sam asked, raising an eyebrow. "It'd help if we knew a bit about your community. Just in case we break any laws or something."

"Well, technically you standing here and not turning me in is breaking a law," Harry offered.

"Oh?" Dean asked, with a smile on his face. "What'd you do?"

"Stand up to The Dark Lord," explained Harry, with a shrug. "I had two friends with me just now... They left."

"You sure They didn't pop out to get some food?" Dean asked, glancing around the woodland area that they were in, realising that there was no clear shops around, and the only way out was through a long path just wide enough to support his Impala. Either just a coincidence, or Castiel had greater powers than Harry could imagine. He was still struggling to get the whole concept of Angels, but Dean and Sam seemed on board with it, and as far as he was concerned that was now good enough for him. He didn't want to lose anybody else, even if these two were not only strangers, but also muggles.

"Sorry, kid," Dean said, seeing Harry's deflated look. "Anyway, like Sam said. You got any info about this Evil Overlord guy?"

"Not enough," said Harry with a shrug. "But I have the basics in a bag back there. It might take you a while to get you up to speed, but, before we start... if you're just normal people, with no magic, how do you stand a chance against him?"

"Well, we can get Cas to go 'holier than thou' on him," Dean said, and then turned to where Cas was, only to discover that the Angel was no longer in sight, and had just vanished. "Damn. I hate it when he does that. Angels can be a pain in the... well, you know."

"I don't."

"Okay, kid. Just follow my lead," Dean said. "Also, where the hell are we? Please tell me you know where we are."

"The Forest of Dean," explained Harry with a shrug, and Dean, sensing the name, smiled.

"Hey, that's cool. I have a forest named after me, Sam," Dean said with a broad grin.

"Dean, I highly doubt-"

"Yeah, whatever. I was having my me moment. Don't spoil my me moment."

"You have 'Me' Moments?" Sam asked, sceptical. "Actually, don't answer that question. Harry. How about those books?"

"Sure," Harry said with a shrug, and went back into the tent, still not believing what just happened. He half expected to walk out of the tent with the books and discover that it was all just a dream. Thankfully, just after Ron and Hermione had left, he had put the Locket in a hidden box – knowing just how bad the effects could get. However, now – if he wasn't dreaming, he had allies. Muggles, yes – but there was something about Dean and Sam that suggested experience in the field. They'd talked about hunting, so maybe they were people killed monsters like Voldemort? He wasn't sure about the magical community in America at all, but Dean had believed all witches and wizards were evil, which further suggested they'd encountered with evil before.

Maybe the Winchesters were just what Harry Potter needed. Or maybe, they'd be the death of him yet.

Final Notes:

Dean and Sam are able to see through the protection charms on Harry's tent because of Castiel. This will also not be the last that we see of Castiel, however for the moment he is written out of the story because the main focus will be on Harry, Dean and Sam. We will also see more of Harry struggling to deal with Ron and Hermione's departure in later chapters, and this will not be the last that we see of those two characters either.

Reviews are appreciated – this is my first Supernatural/Harry Potter Crossover. If you are interested in my other work (I have deleted previous, uncompleted work that I have no intention of going back to with a name-change) then among my recent works I have a Supernatural/Hellblazer one-shot featuring John Constantine that I would appreciate feedback on, entitled "Better Luck Next Time". John Constantine, despite the fact that he is awesome (and inspired Castiel's trenchcoat) will not appear in this storyline.