*You feel yourself spinning, faster and faster, a vortex of colours swim by you, only one thought swims through your mind..."I'm gonna be sick"...then, as abruptly as all the twirling and swirling started, it stopped. And you tottle briefly before giving up and plonking down on the ground. Your in some type of old library. Someone looks up from a plush red armchair by the window.*

Skysong1: Ahh, greetings readers. Xiera: Hurry up with it Skysong! Skysong1: Sheesh Xiera! Xiera: *rolls eyes* Just get on with it! Skysong1: Well, anyhow, I am Skysong1.and this here, is Xiera. *Xiera nods from her armchair**Skysong1 sneers then coughs* Xiera: I think that the readers know by now that we're both here, Skysong. Skysong1: This is our first joint fic, so please, be nice and click that wonderful button at the end labeled 'review' Xiera: Stop attempting to sneer, it doesn't look good on you. Skysong1: *resorts to scowling at Xiera* Xiera: Come on, I don't have all year. Skysong1: As my accomplice is not as patient or articulate as I, I hope you all enjoy this fanfic. *Lights dim, curtains are drawn up. Corny band plays even cornier fanfare*

Juvenilitis Virus

::Prologue:: (By Skysong1)

It was during the middle of October, the students of Hogwarts, School of Witchcraft and Wizardry were chattering cheerfully about the Halloween ball to be held the next week. Boys fretted over their dates (or in some cases, lack of) and girls fretted over their attire (or rather, soon to be bought).

Dumbledore stood up regretfully then coughed once to get the school's attention.

"Excuse me, I got a very important announcement to make!"

The noise level halved in decibels.

"Unfortunately, Madame Promfrey had just reported that the Juvenilitis Virus is spreading around the school, the whole school is to be quarantined and no one is to leave school grounds.not even to Hogsmede."

A few of the girls fainted, while others mouthed in protest, complaining that they hadn't bought the 60 Galleon dress robes that were apparently the latest trend in magical Paris. (Complete with the shoes of course.)

Seeing the gathering protest march, Dumbledore continues, ploughing through the crowd like an efficient bulldozer. "Also, hence the Halloween Ball.is to be postponed."

Silence and a sea of gaping mouths, rather like jelly fish really...

"Now, the symptoms of Juvenilitis aren't dangerous, to say the least, basically, the affected person will turn to a quarter of the age. Their mentality, magical ability, physical.appearance. Would look the same as when they were.a quarter of their age!" Dumbledore gave a little chuckle as he repeated himself.

"No cure is available, but the virus will blow away in a month or so. And after you contract this virus once, it is hardly likely that you'll contract it again in this lifetime.although there has been some exceptions.I want you all, if you see someone affected by this virus, to simply take care of them, treat your "younger sibling" as you hope to be treated yourself in your situation. We don't know how this disease is spread, so we have to wait until it is completely gone. If one of your friends or classmates get infected, please go to a teacher, and we can give then an identifying bracelet.for organization." Dumbledore paused thinking, "That's about all I have to say right now actually.have a nice dinner!"

A few Hufflepuff girls screamed, as their friend seemed to burst into a puff of baby pink smoke. A 4 year old in pigtails peered up from her bench, nose scraping the wooden table curiously.

"Can I havva lollypop?"

Several people screamed.

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::Chapter 1:: (By Xiera)

Harry sighed.

6/7th year potions class with Slytherins was a nightmare, as usual.

He looked around the room. Neville Longbottom was absolutely covered in charms, rumoured to reduce the chance of catching the Juvenilitis Virus. Snape's long beak of a nose broke him out of his reverie.

"Potter," Snape hissed, eyes dancing at a chance to torment the boy.

"What on Earth are you doing, staring off into space, your Veritaserum is totally unusable. You were supposed to stir it. Oh well, looks like you'll be getting another D. Clean up Potter, you may watch Draco make a perfect potion." Smirking, Snape swept away, to the sound of the sniggering Slytherins.

Harry silently put away his equipment, determined not to let Snape have anything else to criticize on. He was just putting away the ingredients when he heard a pop, saw a puff of baby blue coloured smoke, and then a loud splash and some wailing. Harry turned. Everyone was pressed against the wall, staring with horror at a cauldron in the centre of the dungeon.

Everyone, that is, except for an irate Snape and an extremely fat and squalling toddler, who was flailing its pudgy hands in what Harry now realized was Neville's "Specially Reinforced Cauldron." Snape scowled, and plunged his hand into the cauldron and fished around for a few moments before grabbing a wet and slimy infant Longbottom. He dumped Neville onto the nearest table before banishing bits of Veritaserum off his hands.

As soon as he was out of the goo, baby Neville stopped crying and started hiccupping. Between hiccups, he managed to say, "Hawo. I'm Newil. Have you come to wescue me fwom gwanny? Uncle Wobert says she's w-w-welated to a dwagon. She's scwary!"

Everyone, including Harry and excluding Snape stared at baby Neville as if he'd grown three heads and had spoken in an alien language.

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Author(s) Notes: Read, Review.or else!