DISCLAIMER: I do not own any of the characters you know from Harry Potter. Don't sue me.

"Now you add the willow juice," Hemione instructed Neville, "and stir anti-clockwise three turns. You're getting the hang of this!"

She was trying to coach him and Ron to make a weak truth potion, since Professor Snape had hinted that it might appear in their O.W.Ls.

"Ron! Don't you ever listen to what I have to say?" Hermoine yelled shrilly. "You're not supposed to add dragon's blood to this!"

"Honestly Hermione, does it really matter?" Ron replied and stifled a yawn. "Can't we just go to bed, I'm really tired."

"No we can't, not until you get this potion right!" She flung out with her hand to indicate the potion and accidentally knocked the cauldron over. The content splashed on all three them with a loud bang. They flew backwards a couple of feet.

"Where are we?" asked Ron presently.

"It looks as though we are in the Gryffindor common room, but it's different. Look Ron, I told you that you weren't supposed to add dragon's blood to that potion!" Hermione exclaimed. "Now look where you've got us!"

"Me! I didn't do anything! How do you know it wasn't Neville's potion?"

"Because Neville did his potion right," Hermione snapped.

Suddenly the portrait of the Fat Lady swung open, but nobody seemed to enter. Ron and Hermione were glad they were hidden from view behind the couch. Suddenly a head appeared in the air. Hermione stifled a shriek. She knew that head. It looked just like Harry! Then the body of him, and three other boys appeared. They sat down of the couches and laughed.

"Hermione, who are those people with Harry?" asked Neville.

"It's not Harry," Hermione said, the truth dawning on her. "It's his dad!"

Neville stared at her.

"His dad?"

"Now what do we do?" asked Ron. "You're the genius!"

"Well, somehow, your potion made us go back in time, and we're in Harry's father's time at Hogwarts!" Hermione thought out loud.

"Bloody brilliant, I couldn't have worked that out for myself! That still doesn't help us!" Ron snapped.

"Well, if you hadn't messed up the potion we wouldn't be here!" yelled Hemione. "Now we're stuck in the wrong time with no chance to get back, unless Harry's dad would want to help us, which I doubt, considering how he was at school!"

She didn't realize that she was shouting until someone coughed above them. They looked up. The four boys were staring at them.

"Um, what are you doing here, and who are you," asked Harry's father, James Potter.

"We're from the future," Hermione said. "And Ron screwed up a potion..."

"I did not!"

"...Ron screwed up a potion that sent us here," Hermoine finished loudly. "So we need to go see Professor Dumbledore and explain to him."

With that, she rushed out of the common room. Neville and Ron ran after her.

"From the future, eh?" asked Dumbledore shrewdly. "How?"

"I was coaching Ron and Neville in potion making, and Ron…"

"Why do you always blame me?" Ron snapped.

"Because it's your fault. Anyways, we need a cover story and cover names. I mean, how do you explain that three Gryffindors just appear out of nowhere?" Hermione talked on.

"We could say we're Beauxbatons transfer students," Neville piper up. The other three looked at him oddly. Neville became red and mumbled "or maybe that was a bad idea."

"No Neville," Hermione assured him. "It was a brilliant idea!"

"Watch it mate," Ron said, "or you'll turn into a know-it-all!"

Neville blushed even deeper red.

"That's settled then. You do realize that I'll have to let you be sorted, otherwise it would look odd. What year are you in?"

"Fifth year," Ron answered.

"Does anyone know that you're from the future?"

"Only the Marauders," said Hermione hurriedly.

"Oh, you know about them, do you? They are also in the fifth year."

"Yes, our best friend Harry's father is one of them. Now, cover names. I can use my own name, because I'm Muggle-born. We'd best keep our first names."

"Neville could be your brother," Ron said grinning. "I think that'd work. I'll be Ron Blake."

"You ought to be muggle-born too Ron, otherwise people might ask who your parents are," Hermione said wisely.

"That's settled then," Dumbledore said. "Oh, and don't give away too much of the future. It could change it radically."

"Yes professor," they said in unison and walked out.

The Marauders were waiting for them outside the door.

"So what did he say?" Sirius asked eagerly.

"We're Beauxbatons transfer students now. By the way, have we introduced ourselves? I'm Hermione Granger and this is my brother Neville and his best friend Ron Blake."

"Sirius Black," Sirius said, stretching out his hand. Ron elbowed Neville sharply, since the latter looked as if he was going to either run or strangle Sirius.

"We know who you are," Ron said. "You're Moony, Wormtail, Padfoot and Prongs! I must say, that map is bloody brilliant!"

The Marauders tried to look modest.

"Well, it was nothing really, piece of cake."

"How much do you know?" Remus asked apprehensively, looking worried.

Ron glanced at Hermione.

"Well, we do know a lot," she said. Neville looked surprised, so she hissed at him, "we'll tell you everything later."

Dumbledore came out of his office.

"Shall we proceed to the sorting?" he asked them all. The Marauders looked confused.

"We have to be sorted, otherwise it'll look strange," Neville explained.

When the students had sat down and begun their dinner, Dumbledore rose.

"Ladies and gentlemen. We are pleased to welcome our new Beauxbatons transfer students to Hogwarts; Hermione and Neville Granger and Ronald Blake. As all new students, they will be sorted into their houses. Let the sorting begin!"