A/N: This first bit in italics is from canon, just to set up where my story deviates from it. On a side note, I will probably focus more on this story than my other one, as for some reason, I find this easier to write than crossover. Updates on this story will (hopefully) be more frequent, at least until school starts back up, but by then I should have some momentum. Anyways, that's enough rambling; I hope you all enjoy the story!

Disclaimer: Harry Potter belongs to JK Rowling, and I do not intend to make any money off of this story, it is purely to satisfy the little muse inside my head. The only part that belongs to me is this little plot I've thought up.

From Kings Cross – Chapter 1

"I've got to go back haven't I?"

"That is up to you."

"I have a choice?"

"Oh yes." Dumbledore smiled at him. "We are in Kings Cross, you say? I think that if you decided not to go back, you would be able to… let's say… board a train."

"And where would it take me?"

"On." Dumbledore said simply.

Silence again.

"Or perhaps, you could board another, less often used train." Dumbledore said stroking his beard.

"What do you mean, sir?"

"Well, it is unusual, but it is for a good cause I believe. That is, if you want to take it." Dumbledore was smiling now.

"Where does it go, though?" Harry asked, confused.

"Why, it goes back in time my boy!" Dumbledore grinned fully for the first time in many years. "Yes, this should work out quite nicely." He tilted his head, as if listening to an invisible voice. "They say it should take you back to sometime around the beginning of your fourth year at Hogwarts."

"So wait, that means Sirius would still be alive! And Remus, Tonks, you, almost everyone!" Harry was grinning from ear to ear. "But wait, who are 'they'?"

"Ah, yes, 'they' are more commonly referred to as the powers that be, or god, if you prefer."

Harry's eyes were wide. Dumbledore spoke suddenly as a puff of smoke floated up behind Harry. A train was pulling in to the platform. "And that, my dear boy, would be your train."

"Wait! Professor, should I tell the past you about the time travel?" Harry asked as Dumbledore began to fade away.

"That, Harry, is up to you. If you think it best, then I believe my past self should be willing to help you without too much of a struggle. If he questions you, just tell him, me, that you are sorry about Ariana. I should believe you then." As he said these last few words, his outline blurred, before he disappeared.

Harry turned, the train looked quite like the Hogwarts express, he mused as he stepped off the platform and onto the train as it began to move away. Suddenly, he felt a weight in his left hand that had not been there before, a handle. He looked down, and there it was, his school trunk. As he looked to his right, he could see the countryside materialising around the train, flying by.

"Harry, mate, you alright?" he turned once more, it was his best mate, Ron.

"Yeah, sorry, just spaced out for a bit there." Harry's internal battle began, and was quickly over within a few seconds. "Although, we, I mean you, me and Hermione, and Ginny actually, need to talk in private. Let's go find them."

"Yeah ok mate, wait, why is Ginny coming with us?" Ron asked, looking confused.

"You'll find out once we find them. Come on." Harry was already moving, gesturing for Ron to follow.

They found Ginny first, sitting in a compartment with a few of her classmates; Harry recognised Colin Creevey and Luna Lovegood among them. "Hey, sorry to interrupt, but could we borrow Ginny for a bit." Harry said, poking his head in.

"I'll be back in a bit guys," Ginny said as she left the compartment. Once they had closed the doors, she turned to them. "What's this all about guys?"

"I'll explain shortly, we just have to go find Hermione first, I don't fancy having to explain twice over." Harry said, walking to the next compartment and looking in. "There she is," he opened the door, "Hey Hermione."

"Hello Harry, Ronald, oh and Ginny too." She looked a little surprised as the short redhead emerged from behind Ron.

"Ok, now that everyone is here, I can explain what I wanted to talk to you all about. Now, this may sound a little bit far-fetched, but I'm no longer the Harry who was here just an hour ago. I've come from the future, where I was 17. Now wait," he stopped Hermione as she opened her mouth to interject that time travel of that scale should be impossible. "I can give you proof, this year, Hogwarts is holding a competition known as the Triwizard Tournament."

"Yes, but you could have heard that from one of the adults," Hermione said logically. Ron was also looking unsure about whether to believe Harry when Ginny spoke up.

"Come on guys; let's at least hear him out." Harry smiled at her before continuing.

"Thanks, Ginny. Well, if that isn't enough proof for you guys, Professor Dumbledore has a device called a Pensive—" Hermione gasped, "Those are extremely rare!" She exclaimed as her eyes widened.

"Really? Well that would make sense, I've been wondering why more people didn't use them, they're quite handy." Harry pondered.

"Can someone please explain what a Pensive is," Ron burst out. Hermione shook her head as she spoke.

"Honestly Ron, have you never read a book in your life?" Ron began to turn red, and Harry, sensing an argument brewing, interrupted.

"A Pensive is a basin that one can store and/or view memories in. Once we get to Hogwarts, I can show you my memories of the future, but until then you'll just have to hang in there."

"So wait, you mentioned a 'Triwizard Tournament'," Ginny began, "What is that?"

Hermione spoke up, "Well, it's a gathering of wizarding schools from all over Europe, Hogwarts, Beauxbatons from France, and Durmstrang, from Bulgaria. A single student is chosen from each school by an impartial judge, and they compete to win the Cup. It hasn't taken place in quite a while, due to the high likelihood of death occurring during the competition."

"Well then, why on Earth are they doing it now?" Ron asked, perplexed.

"Well, I'm assuming that they have found a way to make it safer for the contestants. Perhaps a way of preventing younger students from entering the competition."

"That's actually right on the mark, Hermione." Harry said, surprised at her accurate prediction. "The impartial judge is a thing called the Goblet of Fire, and Dumbledore put some sort of age line around it— I mean, will put some sort of age line around it."

"Oh, so basically no one under a certain age could cross to put their name in?" Ginny looked impressed. "Interesting… we should learn how to make one; it could be useful, especially for pranks." She said with a wicked grin.

"Yes, a perfect way to get back at Gred and Forge." Harry shared Ginny's conspiring grin. Ginny looked somewhat surprised that Harry was interacting with her so much more, but was perfectly happy to go along with it.

"So anyways, if you really have come from the future, then could you tell us what happened there? Did the Chudley Cannons win the World Cup?" Harry chuckled at Ron's enthusiasm.

"No Ron, sadly they have still maintained their losing streak." Ron looked downtrodden as he shook his head.

"Well that's not too hard to believe." Ginny said with a quiet giggle.

Hermione rolled her eyes, "You and your quidditch," despite her dislike of flying and quidditch, she looked at Ron affectionately as she said this.

Harry noticed, and was slightly surprised that it had taken him so long to in the last timeline. He smiled, maybe this time, he could give them a push in the right direction.

A/N: I think I'll leave this off here on a nice note. Next chapter, arrival at Hogwarts and the Pensive! Please feel free to review if you have any constructive criticism to offer or an opinion on the story. Thanks.