AN: Heyo, another Fred and George story (I love them), though this one is not so sad, I probably couldn't have handled another one of those lol. Well, I was intending for this to be a oneshot, but I suppose I could continue it somehow if people want, any suggestions are appreciated :)

Up to No Good

Fred and George Weasley looked around in amazement at the numerous Halloween decorations being put into place in the Great Hall. They stood just outside the doors, their eyes wide and absent-minded grins on their faces. Halloween had always been one of their favourite holidays, and this would be their first at Hogwarts; they had a good feeling they wouldn't be disappointed.

"Brilliant." George said as the jack-o-lanterns floated into place and lit up.

"Fan-bloody-tastic." Fred agreed.

They managed to wrench themselves away and headed down the corridor, eagerly anticipating the feast that awaited them that evening. They could almost taste the sweets, though their minds were never far from the fun side of the holiday.

"You know," Fred said. "This is our first Halloween away from mum's watchful eye."

"You're absolutely right." George said, catching his meaning immediately. "And you know what that means."

"Time to celebrate All Hallows Eve in a proper fashion."

"A few tricks for them,"

"And some treats for us."

---

"Bloody troublemakers! As if my job weren't difficult enough," Filch grumbled as he hauled the two eleven year olds into his office, their fiery hair the only bright thing in the room.

"Aw come now," George said.

"It was just a bit of holiday fun." Fred said.

"You call a stinking Dungbomb fun?" Filch growled, his eyes bulging.

The twins didn't dare answer or their laughter might escape.

"You two should thank your lucky stars they still don't use the old punishments," Filch said, looking positively maniacal.

Fred and George prepared themselves for another winded and violence-filled speech, something they'd been accustomed to since their first day at Hogwarts. As they tuned out Filch's voice something potentially fascinating caught Fred's eye; to his right was a drawer marked 'Confiscated and Highly Dangerous'. Definitely fascinating.

As Filch began to pace, Fred nudged George's foot with his own and nodded towards the drawer. George nodded slightly and subtly reached into his pocket for another Dungbomb. As soon as it hit the floor and confusion ensued, Fred whipped open the drawer and grabbed the closest thing that didn't look as though it would bite, and stuffed it in his pocket.

"So sorry, don't know what happened," George said as Filch dragged them out of the room, shutting the door behind him. "Must've fallen out of my pocket,"

"I don't want to hear your sodding excuses!" Filch seethed, looking as though he was on the brink of heart failure. "Just go! I'll deal with you later."

They did so immediately, hurrying down the corridors and ducking into an empty classroom a safe distance away. Fred pulled the pilfered item out of his pocket and they examined it. Disappointingly, it looked as though their prize wasn't so 'highly dangerous' after all.

"I wasted a perfectly good Dungbomb so you could snatch a piece of blank parchment?" George asked, staring at the object in disbelief.

"Why would Filch put a blank piece of parchment in that drawer?" Fred reasoned. "It's got to be something."

He flipped it over and over, examining it. He pulled out his wand, tapping it and muttering different incantations.

"It's useless." George sighed. "A waste of our talents."

Fred frowned. "Stupid thing." He prodded it. "No good."

He went to stuff it back in his pocket, but George suddenly stopped him.

"Wait, look!"

Fred held up the parchment and realized it was no longer blank; words had appeared in green script.

Mr. Prongs would like this presumptuous student to know that his accusations are a trifle insulting.

The twins read what it said and waited, but nothing else happened.

"Is that all it does then?" George asked.

No sooner had he spoken then more words appeared.

Mr. Moony agrees with Mr. Prongs and would like it to be known that there is always more than meets the eye.

The boys frowned.

"Is it just some sort of…thing, that spews riddles?" Fred wondered aloud.

The words began to fade, but in their place more words formed.

Mr. Wormtail would like to inquire as to what the student's intentions are.

Mr. Padfoot wonders if they are up to no good.

"It's like they've met us before." Fred joked.

"What if this thing is 'highly dangerous'?" George wondered apprehensively. "I mean we don't know who these people are, or even if they're people at all."

"Oh come on," Fred dismissed the idea. "If it was that dangerous it would have been destroyed already. Besides, what's life without a little adventure?"

"Filch's life?"

"Exactly."

As Fred and George watched intently, the previous words faded again and new ones took their place.

The Marauder's are willing to reveal their most fantastic secrets as long as the overly curious and critical student solemnly swears they are up to no good.

They raised their eyebrows at each other and without a second thought Fred prodded the parchment again and said "I solemnly swear I am up to no good."

The words vanished and thin lines began to spread out from the point Fred's wand had touched. In no time at all the twins found themselves looking at a complete and incredibly informative map of Hogwarts, and at the top, in the same green script as before, was written

Messrs Moony, Wormtail, Padfoot and Prongs

Purveyors of Aids to Magical Mischief-Makers

Are proud to present

THE MARAUDER'S MAP

"Wicked."

They grinned with excitement and amazement. They could already spot a few passageways that led out of Hogwarts. Also, there were tiny dots sprinkled all over the map with names above them.

"Hey, look!" George pointed at two dots huddled in a classroom that had their names hovering over them.

"This is bloody brilliant!" Fred said enthusiastically.

They took a closer look at the almost certainly useful passageways, devilish plans already forming in their minds.

"You know George, I think we've just made the most important discovery of our career."

"Fred, I think you're right."