An American Animagus in England
Disclamer: I don't own harry potter or any of the material just my character
As john was walking down the train most of the other students were sneering at him and telling him that the cars were full though they clearly weren't. One obnoxious blonde brat told him "Fuck off yank go back to Ivermony where you belong." He looked him in the eye and said, "I'll remember that you purist trash." The trolley lady stepped in front of him and said, "Enough there is car near the middle that's half full." As john turned on the heel of his boot the snob said, "The name is Malfoy you should learn to respect your better's hick." When john got to the half full car he saw a man asleep and three other students around his age in what seemed to be a serious conversation. Harry looked up when there was a knock on the door to the car to see another student but not one he recognized when he open the door the young man said "hello there I need somewhere to sit and everywhere else is full would you mind if I share this car for the rest of the ride" in a very distinctive American accent harry looked at the others and they nodded that it would be OK then he slid the door the rest of the way open.
As john stepped inside everyone introduced themselves he then smiled and said, "thanks I thought I would have to stand for the rest of the ride a lot of people seem to have a problem with me being from the US." Harry Ron and Hermione looked at each other and shrugged then Hermione said "it's just strange to see an American here on the train to Hogwarts. Why aren't you attending Ivermony if you don't mind me asking?" John looked down and said, "I came to live with my grandparents here in England because my other grandparents find the fact that I take after my father so strongly." Ron spoke up without thinking "What happened to your parents John?" Harry shot Ron a look and he realized what he had just done "I'm sorry" he said, "I didn't mean anything by it." John looked up and said, "It's OK but my parents died around the same time as yours harry the American death eaters killed them because they were trying to get permission to bring some more Aurors over here to fight you know who."
As he was talking he was looking out the window when the train suddenly stopped the others seemed worried we aren't there yet there's no way we are there yet no one else noticed when the sleeping man stirred and drew his wand john did though and he also slipped his wand out of his holster. When the air started to chill, and the window started to frost over john knew what was happening he prepared to repel the dementors. As it started to search the train he knew that harry would be a target for the dementors and so would he that's why he learned the Patrons charm from his dueling coach as early as he could get him to teach it to him. When the dementor opened the door, it attacked harry the second one tried to attack him when he and Lupin stood simultaneously and both yelled "Expecto Patronum" while Lupin just conjured a shield John shot out a fully realized patrons that is a dragon that roared and jumped at the dementors that turned and fled at incredible speed. John put his wand down and sat down on the seat extremely tired. Lupin looked at him and said, "Well done here take some chocolate it will help." John nodded and accepted it without a word Ron and Hermione were hovering around harry when Lupin said, "Back up give him some space he will wake up presently" just then harry groaned and rolled over then sat up Lupin smiled and said, "Here its OK its chocolate" harry took some and then took a bite looking better he asked "What was that?" Lupin looked at John and said, "Those were dementors guardians of Azkaban they were searching the train for Sirus Black now if you will excuse me I need to have a word with the conductor" and he walked out as he was leaving he said again "eat you'll feel better" and he was gone lost in a sea of people looking into the train cabin that the four were in.
The rest of the ride went by with out a hitch though john couldn't escape the tirade of questions by harry and especially Hermione wanting to know how he knew such an advanced spell and how it worked. John was able to deflect most of the questions, but she wouldn't let up, so he said I learned it from my dueling coach about a week before I left for England. As the train pulled up to the station a few teachers were waiting on the platform as usual, but this time headmaster Dumbledore was among them looking for the young student from the US that he had heard so much about. When he stepped off the train with harry the Old man smiled as they approached he studied John he looked much like his father but with his mother's blonde hair and dark blue eyes. John looked up at him and said, "Headmaster Dumbledore my grandfather and grandmother send their regards and their thanks for accepting me here to Hogwarts though I haven't been placed into a house yet." The old man again smiled and said, "Well there is a tradition that the sorting hat chooses your house I was hoping that you would participate though in actuality you may choose if you would like." John smiled "I have heard of this tradition we had a similar one at Ivermony. Of course, I will participate though I think I already know my house if the ride here was any indicator."