This is a rewrite of my other story so if you want to see the original, it will still be up online until I've finished a TON a rewriting.

Thanks for the support guys!

Ok, so I've finished rewriting the first two chapters (which are now the prologue and chapter one) so I hope you all like them!

DISCLAIMER!

I DON NOT OWN HARRY POTTER OR D. GREY-MAN OR THE TEXT FROM THE ACTUAL HERRY POTTER BOOK!

Prologue

It was a normal (or what the Black Order calls normal) and peaceful day… nah, who am I kidding? The Black Order was, is, and never will be anything close to 'normal' and 'peaceful'.

You see, Allen Walker was appointed General, not to long after he hit the critical point. Since he already had a reputation of being the youngest, and now a GENERAL, the news spread very quickly through out the Black Order. (His new Outfit kinda resembled Cross' Uniform, you know, the original outfits at the beginning of the series.) The Promotion didn't help the relationship between Allen and Kanda, as we all know, the 'if they start fighting, people back away slowly valuing their lives or try to stop them' (But that's highly unlikely). Oh, and then there is that one Idiot who doesn't take a hint, ahem, Lavi. So… yeah. It's another peaceful day all right, of trying to kill one another.

"At least I don't look like an old man!"

"Ahem, I'm not the one who has to take anger management classes!"

"Well, at least I'm not a freaking midget!"

"And I thought girls weren't much into being samurai."

"Damn you, Baka Moyashi…"

That was the last straw. Allen stood up from the table a glared at Kanda. "For the hundredth, thousandth, time, my name is ALLEN! NOT FREAKING MOYASHI!"

And then of course, Lavi walks in and immediately walked over to the one table everyone was trying to avoid. "Come on Yu-chan, his name isn't that hard to say." He sat down, a little too close for Kanda's liking. "Just say Allen, see? Two syllables. Al-len. Now you try." He grabbed Kanda's cheeks and tried to force him to say it. "Come on, say it with me, Allen. Al-len." It wasn't long until Kanda snapped and threw Lavi across the room. The poor rabbit came crashing down and broke the other table.

"Don't ever call me Yu-chan, you damn Rabbit!" Kanda was now covered in a destructive aura.

"Good going Kanda." Allen pointed over to the pile of broken wood that used to be known as a table. "Now we have to buy a new table."

An ear piercing sound that echoed through the Black Order interrupted their argument. "Hello? Is this thing on? HELLO? ANYBODY HEAR ME AT ALL?" Komui's voice could be heard on the sound system.

"Um, nii-san, that light right there means it's on." Lenalee pointed out, trying not to make her brother feel bad.

"Oh right, of course. What would I ever do without my sweet darling Lenalee? Ahem, would General Walker please report to my office, right now. Also, whoever is responsible for the spray paint prank on the science division better confess or you will be shown no mercy when something accidentally gets out. Have a nice day." Another horrible sound and the sound system was turned off.

Kanda turned around to finish his business with the Moyashi, who had already bolted out the door, trying to avoid a very pissed off Kanda. So, he decided to teach a certain -starting to regain his conscious- Lavi, a painful lesson.

Allen opened the door to Komui's office. He then surveyed the room, surprised by the unknown visitor in his presence. It was an older man, with a very long beard. The older gentleman had a kind smile, kinda like general Yeeger. As for his attire, he had a sort of odd outfit, then again, when did anything he wore be considered normal anymore?

"Oh good Allen you're here, please take a seat. I would like you to meet, Professor Albus Dumbledore, the Head-master of Hogwarts School of Witchcraft and Wizardry." Komui exclaimed happily, and to be honest, Allen had no idea what he was talking about. 'Witchcraft? Wizardry? School? Oh god, Komui, what have you gotten me into this time?'

The Headmaster turned toward the young exorcist. "You see my dear boy, my school is a place where young witches and wizards go to learn and grow. But as of late, some terrible demons, or Akuma as Supervisor Komui had put it are attacking the school. I worry about the safety of the students and I haven't the foggiest idea why they are appearing but I need help on the situation. Apparently, magic has no effect on them so I have no way to defend the school myself."

"So, you want me to investigate then Komui?" He inquired, trying to get a hold on the situation.

"Yes, but there is more." Komui fixed his glasses, and then pulled down the projector screen, showing some elaborate plan… in drawing form with little labels. "Allen, you know that General Cross Marian knew magic, right?" Allen tensed up when he heard Cross's name and nodded in replay. "Did he ever teach you anything?"

The white-haired teen shrugged, "Well, yeah, he taught me a bit. If I ever had any free time, he made me read some of the wizardry books so I picked up on a thing or two."

Komui jumped around with glee, "Then this is perfect!"

"Perfect? Perfect for what?" Whatever it was, Allen had to know what it was. 'So help me Komui if it's anything like last time I swear…' He ended his thought there after realizing how much he sounded like Kanda.

"It seems this year, there is an opening for a teaching position at Hogwarts as the Defense against the Dark Arts class. We thought it would be best to have you go undercover for your mission so you don't attract unwanted attention. I hope this won't overwhelm you." Dumbledore said.

"No, no this is fine. When do I start?" He took a sigh of relief.

"Well, class won't start for another two weeks so you'll have time to prepare. I'd like you arrive by train a while earlier then the students, that way you can get used to the new setting and fully access what your dealing with. Also, it would be wise to do some studying and a quick catch up on recent events in the Wizard World. It might be helpful as well as a chance to learn some new things."

Allen took some mental notes for later. "Sounds good."

"Oh, and Allen. Let's not reveal that you have innocence and what your truly at Hogwarts for. From what I know, it you might be better off trying to avoid it, if their Ministry finds out, if could jeopardize the mission. Plus we don't need rumors reaching the Millennium Earl about our top secret plan!" Komui shouted, which could have probably been heard across the black order if half the rooms were not sound-proofed (Don't ask. And yes, there is a reason for that. Involving a certain Bookman Jr. and a blow horn… Shouldn't you be paying attention to the story?).

"Yes Komui, because a white-haired 15 year old with a red scare down his face, who is a teacher in Defending the Black Artworks will not stand out."

"Um, I think its Black Arts Allen."

"Same thing." Allen opened the door and was about to head out and prepare for the school year. "See you in a few weeks then, Dumbledore Sir."

"Looking forward to it, Professor Walker." He replayed and shook Allen's hand.

"Professor... Professor Walker... it has a nice ring to it."

-Time Skip: Few Weeks Later, Allen is about to leave-

"Hey Allen!" Lavi seemed to have come out of nowhere, "I heard you have a Solo Mission!"

Followed by Lavi were Kanda (forced to come) and Lenalee (who had come to see him off). "Good Luck Allen! We'll all be waiting for you for when you return." Lenalee said with her usual kind smile.

"Che." Kanda... Ched? He really didn't want to be here but if it meant Moyashi was leaving, then he'd put up with it. Now, If only he could get rid of the other one...

Lavi leaned toward Allen, one hand covering the side of his mouth and whispered, "So Allen. What's this mission about?"

"Sorry, can't tell. You know, top secret and stuff." Allen put it bluntly.

"I guess I'll have to go ask old Panda then. Now if you excuse me, I'll be running for my life." And he ran as fast as he could but was still kicked in the head by Bookman, he should have learned his lesson a long time ago.

"Looks I like I'll be taking my leave." Allen made his way towards the train that was about to leave without him. "See you guys later then." He waved goodbye as the train departed from the station, Timcanpy closely flying by him. (And you thought I forgot about him didn't you?)

Bonus Story: The Remote

Lavi, Kanda, and Lenalee were walking back the Black Order. It was mostly quiet, but every now and then Lavi managed to do something to piss of Kanda. "Man, I really wish Allen would have told me what his secret mission is. Oh well, I'll figure it out soon enough. I am future Bookman after all!" He then realized that Kanda (even Lenalee!) wasn't listening to him. "But for now…" The Exorcist took out a small remote, with one large, red button on it.

"Hey, um, Lavi?" Lenalee asked while intensely staring at the remote. "Where did you get that remote?"

The Rabbit only smirked. "The Science Division."

Kanda was also curious, but then it hit him. "Let me rephrase her question. How did you get that remote?"

"Well, it looked so lonely on Komui's desk so I thought…" This lead to a huge game of chase, Lenalee and Kanda where in a high-speed pursuit of Lavi who seemed to just barely get away. It wasn't until they were close to the entrance of the Order when Lavi finally made up his mind. "I wonder what happens when I press this button?"

They all stopped, waiting for something terrible to happen. 5 seconds, 10 seconds, 30 seconds, 55 seconds…

BOOM! A huge explosion came from the building. Machine like sounds could be heard, rampaging about. The Two turned to the now really pale Bookman Jr. "LAVI!"