To change the future

PS-6

Harry and Jason's last month before school started was fun. Everyday they wandered around the alley, checking out the stores and other things. Harry had teased Jason for mostly buying books. Jason had also bought a snake cage for Apophis and now the snake spent his days lazily sleeping in his cage or in the walls of the inn eating mice.
Whenever they stayed in their rooms Jason and Harry relentlessly quizzed each other over stuff in the books.

"And thank god for that." Harry mutters while Ron gives them a horrified look "But it was summer!" he says, horrified at the thought of spending most of his days studying during summer. Jason rolls his eyes "Studying is fun." he says ignoring the looks several people were giving him.

　Harry woke at five o'clock the next morning and was too excited and nervous to go back to sleep. He got up and pulled on his jeans because he didn't want to walk into the station in his wizard's robes -- he'd change on the train. He checked his Hogwarts list yet again to make sure he had everything he needed, saw that Hedwig was shut safely in her cage, and then paced the room, waiting for Jason to get up. Two hours later, the two heavy trunks were packed and the boys spent the last couple hours eating and buying last minute stuff.
They reached King's Cross at half past ten. Jason blamed Harry's time keeping skills.

Harry shot him an annoyed look. Jason just looked at him "The potion last summer." he reminds him "What Potion?" McGonagall asks, narrowing her eyes. "Why that would be a spoiler, and no one likes spoilers Catwoman." Jason says before looking at Dumbledore.

"Jason has anyone told you how to find the platform? Because no one told me and I don't see it." He was quite right, of course. There was a big plastic number nine over one platform and a big plastic number ten over the one next to it, and in the middle, nothing at all. Jason stands still for a few seconds before swearing "Son of a bitch!" Jason yells, earning him disapproving looks from people.

"They can kiss my ass." Jason mutters "LANGUAGE!" Steve yells from his seat "You can kiss my ass too!" Jason yells back at him. Clint and Bucky snicker at his stunned expression.

　They stopped a passing guard, but didn't dare mention platform nine and three-quarters. The guard had never heard of Hogwarts and when they couldn't even tell him what part of the country it was in, he started to get annoyed, as though Harry and Jason were being stupid on purpose. Getting desperate, Harry asked for the train that left at eleven o'clock, but the guard said there wasn't one. In the end the guard strode away, muttering about time wasters. Jason flipped him the bird as he left. Harry was now trying hard not to panic. According to the large clock over the arrivals board, they had ten minutes left to get on the train to Hogwarts and they had no idea how to do it; they were stranded in the middle of a station with a trunk he could hardly lift, a pocket full of wizard money, and two large owls. Jason was taking his stress out by teaching the nearby group of kids how to swear.

"Of course, you were." Fred says fondly, leaning over and messing up his friend's hair.

Harry and Jason started to argue over their predicament. At that moment a group of people passed just behind them and he caught a few words of what they were saying.
　　"-- packed with Muggles, of course --"
　　Harry and Jason swung round. The speaker was a plump woman who was talking to four boys, all with flaming red hair. Each of them was pushing a trunk like Harry and Jason's in front of him -- and they had an owl.
　　Hearts hammering, they pushed their cart after them. They stopped and so did they, just near enough to hear what they were saying.
"Now, what's the platform number?" said the boys' mother.
　　"Nine and three-quarters!" piped a small girl, also red-headed, who was holding her hand, "Mom, can't I go... "
　　"You're not old enough, Ginny, now be quiet. All right, Percy, you go first."
　　What looked like the oldest boy marched toward platforms nine and ten. Harry and Jason watched, careful not to blink in case they missed it -- but just as the boy reached the dividing barrier between the two platforms, a large crowd of tourists came swarming in front of him and by the time the last backpack had cleared away, the boy had vanished.
　　" Fred, you next," the plump woman said.
　　"I'm not Fred, I'm George," said the boy. "Honestly, woman, you call yourself our mother? Can't you tell I'm George?"
　　"Sorry, George, dear."
　　"Only joking, I am Fred," said the boy, and off he went. His twin called after him to hurry up, and he must have done so, because a second later, he had gone -- but how had he done it?
　　Now the third brother was walking briskly toward the barrier he was almost there -- and then, quite suddenly, he wasn't anywhere.