A/N: Actually I wanted to start in this fandom with an One-shot, but that is still only pertly done and I feel really tempted to write this Crossover. There are some good ones out there in this category though as you can see by my other stories I like o make twists. The main ones which you will notice in this story will be used in one or the other way in my fics. Some explanations on the end of the chapter…

I. The four schools

There was a big commotion in front of the large ancient looking castle, students were whispering among they comarades as they waited patiently in the chilly September air. Usually they would all sit by this time inside the Great Hall, each person by they respective Houses, but this year was special. It was since long decades that the Triwizard Tournament was held in which three schools dedicated to magic competent against each other in a friendly tournament. This was in it self a great and surprising news for everyone, but this year was also a fourth school participating in they midst. As they all stood there grew the excitement almost unbearable and the cold air wasn't helping to much might I ad, though soon the first two schools arrived at least. Beauxbatons had arrived on a flying carriage pulled by winged horses, Durmstrang on the other hand come by a large ship from the lake, now was only the last school missing.

Suddenly there was a shocked yelp from one of the third year Hufflepuffs and soon everyone's gaze followed the shocked girl's gaze to the field where slowly something similar to pearl white diamonds started appearing out of nowhere, growing slowly till suddenly on the largest one on the top the number 14 started gleaming while the space between the diamonds, there was no other description for them, looked like rippled silver water. Everyone stared at the strange phenomenon with both awe and a slight fear.

"Blimey, what the Bloody Hell is that?" asked Ron his two friends who stood beside him.

"I have no clue, but it looks like as if someone is coming out." replied Harry and sure enough a tall figure emerged slowly through the silver water like surface.

"Ah Professor Lee, welcome to Hogwarts." Dumbledore said smiling as he walked up to the man, hugging him as if they were old friends.

"Thank you Professor Dumbledore, we were really touched about the invitation to this marvelous event." replied Professor Lee smiling enthusiastically.

Harry looked the man carefully over; he guessed that he must be the Headmaster even if looking the youngest of the currently present four school heads. He was certainly Chinese heritage as Hermione pointed out with shoulder length black hair and glasses. He wore a strange white uniform anstead of robes which looked like a mix between a labor coat and a military uniform combined with a white beret on his head, there was also a silver cross emblem sewn on the uniform right on the spot where the heart is.

"Well then where are your students if I may ask?" at Dumbledore's question Komui only smiled.

"They are already coming." and just as he finished with his sentence seven more people emerged from what now they assumed to be a door or a gate.

As Harry looked them over he needed to note that beside the black uniform with silver trimmings and the cross on they left shoulders, the school uniforms seemed to be customized for everyone, were they a really strange group. There was a girl with dark emerald colored hair worn in two pigtails and the shortest skirt any boy could dream of seeing a girl in, Hermione scowled at the two boys for starring. The other girl of the group standing beside her was pretty short so Harry tipped that she was probably a first year, with cream colored skin and short spiky black hair. Beside her stood two older looking boys closely beside each other, one with short black hair while the other hand long blonde hair. Beside the blonde stood a grinning boy with bright red hair not unlike that of the Weasley hair, but somewhat more vibrant, the other thing was that he was wearing an eye patch over his right eye while the other eye was just like his an emerald shade similar to the boys bandana and scarf. The one standing beside him was his polar opposite. On first glance he thought he was a rather stoic looking girl, but on closer look he was definitely male with probably the longest dark blue hair he had ever seen on a guy. Then come the last person and probably the most strangest of them all. He was trying to hide somewhat beside the annoyed looking boy from the wizards gazes and Harry was sure that the trio beside the Chinese girl was glancing around protectively as if daring them to say even one bad word. The boy looked actually pretty young, but he had snow white hair which got only even more highlighted through his pale skin color and silver eyes, there was also something like a strange red scar on his face.

"Well then, I think it is time that we all head inside for the feast." accounted Dumbledore at which everyone nodded gratefully before heading in the castle's direction.

The Golden Trio were just doing the same when they suddenly heard Neville, one of they fellow Gryffindors gasp in surprise.

"Neville what is wrong?" asked Hermione they friend, but Dean Thomas beat the other with the answer.

"Wow, look over to the last school." Dean said in a shocked voice.

Looking where he was pointing they all noticed with shock that the students of the new school were all walking in a little group chatting happily with they headmaster in the middle. Usually students always walked behind the headmaster of they school, but these students…

"Blimey they must be pretty close." exclaimed Ron in awe. "Wish we were that close to Dumbledore."

The Great Hall was filled with excitement as Dumbledore started his speech about the Triwizard Tournament and started with the introduction of the schools who gave a little performance after being called up before taking seat by one of the tables. The girls of Beauxbatons were first who after a in most males option breath taking performance took they place at the Ravenclaw table, after them the boys of Durmstrang gave they performance and sat, much to Ron's dismay, by the Slytherins.

Now was only one school was missing and by this seemed the other two visitors also somewhat excited.

"…And now lastly I would like to ask all of you to welcome the students of the Rose Cross Academy for Alternative Magic and they headmaster Professor Lee in our mids." at this most people looked confused because no one had heard about this school before.

"Hey Hermione, did you know something about this school?" asked Harry curiously.

"No I have never heard the name before, but that on they uniforms is really called a rose cross. What I know about it is that they also call it rosy cross or rose croix, its a symbol largely associated with the alchemist Christian Rosencreutz, found him in the same book as Flamel in first year. By the way Rosencreutz is a German name and means Rose Cross in English. It has several symbolic meanings to it…" but at this moment the large doors of the Grate Hall opened a third time, stopping every conversation efficiently.

Turning to they sides they saw the two girls of the Rose Cross school performing some highly advanced looking acrobatic acts and most people, who weren't staring at the girls legs, thought that it nearly seemed like as if both of them would be flying. The suddenly the stoic looking long haired boy appeared out of nowhere drawing a katana from his side showing some dangerous looking movements with it. Many people gasped in worry each time he sliced in high speed in the direction of the girls, held they breath in shock and awe when the dark emerald haired girl landed on the gleaming sword while the other was caught by a figure wearing a white cloak and golden clown like mask. Just then the figure drew the cloak over the other two also and disappeared in a strange silver mist only to walk in with the rest of they group through the door bowing slightly. There was silence for a few minutes before the whole Hall broke out in a thunderstorm like applause for the brilliant performance. By the staff table was Komui smiling at them, he knew how long they had trained for this in the week before the mission started then in truth were they here at Dumbledore's request who spotted Akuma near the school and that usually mean a chance for innocence. Luckily at that what Dumbledore gave him for description they were only level ones and there could be also some level twos, but hopefully no lever threes or worse fours. The later two could mean pretty big problems regarding the fact that the Earl had modificied his new Akuma to only obey one Noah in other words him. Hopefully he was worrying without a ground.

Meanwhile were the exorcist making they way to the Griffindor table.

"Hy, mind if we sit here?" the long haired girl asked.

"Of course not." replied Hermione as they made space for the seven.

"Thanks, come now guys." she said mentioning to the others to follow her example and sit down. "By the way my name is Lenalee Lee." she introduced herself.

"I'm Hermione Granger and these are Ron Weasley and Harry Potter." Hermione said gesturing to her friends and Harry was surprised that neither of the seven showed the usual reaction he received when someone said his name.

"You know that you have the same name as your Headmaster? Oh and by the way I'm Dean Tomas." Dean said at which Lenalee only giggled, making most of the boys swoon, while her friends either groaned or rolled they eyes.

"Yes he is my older brother Komui." she explained.

"With a damn sister-complex even overshadowing Sheryl's, which is frightening, and I hate it when he sets his Komurin loose, it is a nightmare." growled the guy with the slightly tanned skin and short black hair, only now saw they that he seemed to wear black make-up around his eyes just like the blonde beside him.

"Debitto calm down please we don't need the memory about Komurins now." the white haired boy said as he placed a hand on the other's arm while smiling.

"Fine." the other huffed and Harry already wanted to ask what Komurin were, but decided against it.

"By the way we still need to introduce ourselves fully." Lenalee said suddenly. "These with me are Lavi Bookman Jr., Road Camelot, the twins Debitto and Jesdaro, Allen Walker and by the way the four of them are cousins."

"And that cold looking guy over there by Allen is Yuu Kanda." the redhead, now known as Lavi said while gesturing to the Asian male at the end of the table who threw him a glare which would even make Snape flinch.

"And if you value your lives you shouldn't dare calling him by his first name only if he allows it." Road chimed in happily as she smiled happily at the dark haired boy whose glare softened somewhat.

"In other words only these two." commented Debitto while pointing at both Allen and Road.

"Why is that?" whispered Ron to Lenalee.

"Partly because Kanda hates how his given name can be used in English and beside that in Japan you only call a person by they given name if you are pretty close and know each other also pretty well." she answered though she knew also why Kanda only allowed those two to call him that. It was because through the fact that they both had physical contact with Mugen when Wisely opened Kanda's mind to re-live Alma, the two also landed in there learning about the samurai's past which formed a bond between them.

"By the way are those your school uniforms? They look pretty expensive."

"Ronald." Hermione hissed at which the seven only held back a laugh.

"No, our school is pretty small and we have not many students so the school makes them for us this is actually the ground why they all look different." Lenalee answered.

"Oh yes luckily then if it was up to those two over there at the end to decide how these should look then the school would be already in ruins." Lavi stated laughing while pointing at the two at he end of the table though he mentally added "…again." Personally he was happy that the old Order HQ was restored and they could move in again, the new one was pretty and fancy, but still it hadn't felt that fully like home. Well maybe because they all felt as if they were interrogated 24/7 from those people out of Central not only Allen. He was glad when they could move back and Central decided to leave them together with the Asian Branch alone even going so far as to free them from Laverier and named Howard Link as the Inspector in command for those two branches. Needles to say they made a pretty big congratulation's party for Link in the Ark combined with the welcome home party for the five Third Exorcist who were sent to them through Central that they should stay there.

"You can bet on that." replied Road, Debitto and Jesdaro smiling.

"Hey!" exclaimed a blushing Allen while Kanda only "che"-ed.

"Sorry Allen, but that is true." replied Lavi grinning.

"By the way Lavi, why are you wearing an eye patch?" asked suddenly Dean at which Hermione glared at him while mounting "This is rude to ask."

"Ah when I was seven and traveled with my grandfather I was accidentally shoot by a stray bullet and nearly died because of it. "he ignored the gasps of horror from the wizards and started grinning "While I was unconscious I seem to have clinged the whole time pretty hard to Gramps's hair because after recovering he muttered for some months something along the lines of "pulled off" and "lessened"."

"So that is why he is nearly bald." giggled Rode while the others were either also giggling or grinning in amusement. The Hogwarts students meanwhile had absolutely no clue how they could laugh, personally Harry couldn't laugh about any of his near-death experiences as Lavi did.

Soon after Dumbledore ended his reassumed speech the plates were filled with many types of different foods to please not only the Hogwarts students stomachs, but also that of they guests. At this seemed to sigh the Cross academy students in relief having witnessed once or twice an angry soba-deprived Kanda on long term missions and believe me it is not a pretty sight. Allen meanwhile put from everything something on his already overfilled plate.

"You guys might want to avert your eyes somewhat before you see something which can give you some pretty big eating disorders." commented Lavi ignoring the four glares he received though Allen was other ways pre-occupied.

"What does he me- Oh Merlin's beard…"

"Ron, that guy eats more the you." commented George in shock as they watched Allen emptying his plate for like the third time and since the foundation of the school there was a danger that they could run out of food.

"Allen, leave something for the others also." Lenalee scolded the white haired boy playfully who blushed at that.

"Erm…sorry…" he replied.

"Wow never saw a person managing to eat that much and still stay this scrawny." come it from Fred.

"Allen has an interesting metabolism which stops him from getting fat no matter how much he eats and as for the amount he can eat, that is because of eating disorders thanks to the fact that he lived on his own on the streets for over a year after getting abounded." Road explained.

"What? But Lavi said that you were cousins." Hermione said in shock.

"Well in a way yes, I lived till I become seven on the street after my parents abounded me because of a birth defect which made my left arm look as if burned, hence the gloves, and was adopted then by Mana Walker the uncle of these three." Allen said noting that also his friends were impressed how Allen and Road could act so flawlessly.

"Yep and so this guy is now a whole member of the family." said Debitto grinning as he leaned over his brother to ruffle Allen's hair.

"Hey stop that Debitto." Allen whined while he tried fixing his hair.

"Wow, I'm sorry no parent should be so cruel." Harry mentally agreed with Hermione, his live with the Dursleys was Hell, but at least he knew that he got there because his parents died protecting him, but Allen was cast away by his own parents.

"Ah don't worry about it I can't remember them anyway and I had Mana till, he died in an accident after that I still had a family who loved me the way I was." Allen said giving them his tendermark smile.

"And the white hair and the scar?" Harry was now pretty sure that Hermione was only inches from it to hit Ron upside the head and he could have sword that he saw a fleeting worry wash over the Rose Cross students faces.

"Ah, I got the scar and the white hair at the same time on Christmas. Actually I had brown hair, but on that night I went through a pretty bad and horrific trauma which turned my hair white and I got this scar." Allen explained letting no detail slip.

After that they quickly changed the topic for the tournament while the twins whined about the age line which brought Harry to the idea that he had never asked just how old the seven were.

"That reminds me how old are you guys actually?"

"Ah, I'm sixteen just like Allen" they found this out thanks to the 14th ", the twins are seventeen, Lavi and Kanda are both eighteen and Road is twelve." Lenalee answered which made the wizards gap.

"But then why are you two still in school and I thought Allen was much younger." Ron broke out.

"Nah, our school is somewhat different seeing that the type of magic we use is pretty rare so we study somewhat longer then you guys and as for M…" Lavi caught himself in time as he saw Kanda's hand slide in Mugen's direction "Allen just looks younger then his actual age."

Soon the feast finished and the students returned to they dorminities while the guest to they transports to get some rest for the night. Inside the Ark had Allen set up individual rooms for everyone in the way they wanted them. Komui wanted one with access to Lenalee's to make sure that the three present dangerous octopuses doesn't get near his beloved darling of little sister. He only excluded Allen and Kanda because of obvious reasons regarding those two, but set down from his idea when he heard that Lenalee wanted to share a room with Road. Jasdevi also shared a room similarly to Allen and Kanda, Lavi wanted to sleep in the library and Komui had his own room alone.

Meanwhile in the Gryffindor Tower's common room, were Harry and friends discussing about the strange students of the mysterious school.

To be continued…

A/N: So this was the first chapter, hope you like it and now to the explaining;

I. Yes I made Allen on year older in this seeing we don't know his actual age for sure, the same goes for Rode.

II. Yes I twisted things and the Noahs have abounded the Earl because of something which will later be revealed in the story.

III. Yes Allen has awakened as the Musician, but he managed to make a deal with his "uncle" and now they share a body together.

IV. The Noahs all view Allen as they brother which he in a way is and threat him also like one as you will later see.

V. Yes I can't stand that idiotic Hitler like guy, Link on the other hand is perfectly decent so yes in my later DGM stories you will know more about this plus as a side info the Ark is now fully Allen's property

VI. As last they are wearing the uniforms they had at the start of the series, what can I say I liked those better...