Prologue

Ginny Weasley was usually the sort of person who constantly asked questions, much to the dismay of her parents and then her peers, but when it came to her brothers, Fred and George, she knew it was best not to.

'Dearest Gin,

We've got a mission for you.

In the vial, that we sent with this letter holds a brilliant little potion we cooked up. Go to the kitchens in the early morning, just before breakfast (y'know, tickle the pear blah, blah, blah) and just sprinkle this beauty on the food- evenly, mind you and on all of it. We want this to be very fair, inter-house unity and all that crap.

In any case, you'll probably find the effects amusing…to say the least.

The potions should start to take effect around a hour after its been taken. Probably, if we brewed it right.

Don't forget to take some yourself or it'll look suspicious, and of course as the responsible caring brothers that we ARE, we don't want you to get caught. We're entrusting this honourable task to you baby sister (we don't trust Ron, well come on this needs some skill, and with Hermione breathing down his neck…) so don't let us down! Keep up the Weasley legacy!

This will be the greatest prank of the YEAR!

Your ever-sensible brothers

Fred and George

P.S. We never sent you this.

Ginny scanned the letter from her brothers again, hastily, and checked she was in the right place. Sure enough, she was standing in the dimly lit passage in front of the fruit bowl painting that concealed the entrance to the kitchens. Carefully she slid Harry's Invisibility Cloak over her and the small vial of purple liquid clutched in her fist. Feeling slightly guilty about nicking the Invisibility Cloak, Ginny comforted herself by reminding herself she could just return it later. Besides, this was for the 'greatest prank' of the year (whatever it was) and it couldn't possibly do any real harm, could it…?