A/N: I have a chunk of this written and I will try to put up chapters as quickly as possible, until I run out of those.
Also, I am trying to keep this cannon, so if you see errors, please, please, let me know. I love input, even criticism, as long as it is constructive criticism, not flames. You flame me, and I'll be nasty right back, just a heads up.

Warnings: UnBeta'd (except but 10year old sister...) nothing else this chapter

'word'= written in the story

"word'=thoughts

The Marauders were furious. For a full year and a half, they had been the acknowledged pranking princes of the school, but now, someone had decided to get even. For the past two weeks, every stunt they pulled backfired on them...spectacularly. Only Remus took it in good grace, probably because he was the only one with enough common sense to realize the way things were going and get out of the way in time, after the first incident. Aurora was the quiet little nerdy Ravenclaw girl, or so everyone thought.

"Come on, hurry up!" James hissed, as Remus passed him the bag of supplies. They'd originally planned on setting up this prank outside the Slytherin Common Room, but Filch had been wandering the dungeons, and, since they had to come out from under the cloak to set it up, they'd had to go to plan B, the Ravenclaw's exit from their common Room. It was riskier, since the eagles-head that asked the riddles might tell, there was only one exit or escape route, and also, the Ravenclaws were alot smarter than the Slytherins. Of course, their signature branding of "The Marauders" on the equipment they had to leave might be a dead giveaway... Remus thought sardonically

"There we go!" Sirius crowed quietly, putting the final touches on it. Their idea was simple; a series of miniature catapults would fling permanent, un-spellable dye balloons at the first four people to exit through the door, using a small charm in place of a trigger or trip-wire. It was as the boys were turning to high five that Remus noticed that the catapults were turning in place- to point squarely at them!

"Duck!" the shy boy yelped, throwing himself down to the floor, ending up on top of the invisibility cloak, quite luckily as it turned out. The catapults launched their load, right as he gave warning, and the other boys, slower to react, got hit squarely. Dye, in several clashing, fluorescent shades splattered all over them, and if Remus hadn't gotten out of the way, and protected the cloak, floating spots of glowing dye might have given them away, later during their hasty retreat. A girl's giggle sounded from somewhere nearby, making Remus, as the only one not wiping dye from his face, sit up and look around, but he saw nothing.

"Bleurgh! That tastes vile!" James spluttered, spitting out a glowing stream of pink, green and blue, all in neon, or electric shades. His face was mostly blue, with splashes of pink from his hair, and green from the splatter that had hit his robes. Sirius was emerald, lime, and magenta, much to his disgust, while poor Peter, who'd taken the worst of it, not only having been closest to the catapults, but having turned to look at them instead of dodging, was an eye-watering combination of orange, purple, green, pink, and a particularly lurid yellow, with splashed of blue, white and teal.

"Alright, you got us, now who are you?" called Sirius, without raising his voice, for fear of attracting teachers. There was a fluttering noise, and a paper owl, holding a scroll landed on Remus's head. As soon as he took the scroll, it unrolled in his hand. The glow from the paint just barely let him read the note on the paper.

Who watches the watchers? Who guards the guardians? Who pranks the pranksters? Prove yourself clever enough, and you will see. For now, one place off limits is my aerie.

"What's that mean, not the riddle, that's obvious, but 'aerie'?" Sirius asked.

"Aerie is a term for a raptor's nesting area, usually refers to an eagle." James said. Old pureblood families still kept to the sport of hawking, at least the Potters did.

"She's telling us that the Ravenclaw Common Room is off limits." Remus said, puzzling through it faster than the others.

"How do you know it's a girl? The handwriting is neat, and all, but so's yours or mine." Sirius pointed out. "You don't want to be sexist." More likely, Remus thought, you don't want to think a girl beat you at pranking.

"You did hear her laugh, didn't you? It didn't sound like a guy, and most guys I know wouldn't giggle if their life depended on it." Remus pointed out patiently.

"Look, this is interesting, but maybe we should go somewhere less likely to get us caught? Like say, our Common Room?" Peter pointed out, as usual, the only one with common sense when an intellectual puzzle was involved. Realizing how exposed they were, and how obviously it was their fault, the others agreed and hurried of to the relative safety of their own domain.