Ok guys. So this is a supernatural fic. As you may have guessed.
But it will take a while for the main character of this to meet the winchesters.
So hang in there.
This story is based on an idea I had whilst listening the Jethro tulls, The broadsword and the beastie.
Listen to it.
Here goes.

Chemistry class. 2;00, Friday afternoon. Des Miones Iowa. 3rd august 2000

There is a boy doodling in his notebook instead of calculating the mole of some substance or another. On his ipod, he is listening to some of his mother's old records.

"Beastie, there's a beast upon my shoulder

Beastie, and a fiend upon my back

Beastie, feel his burning breath a-heaving

Beastie, smoke oozing from his stack

And he moves beneath the covers

Beastie, or he lies below the bed

Beastie, he's the beast upon your shoulder

Beastie, and he's the price upon your head"

THWAK! The boy receives and elastic band to the face courtesy of another boy on another table to his looks over whilst taking out his headphone out of his ear.
"What do you want Jonny?" The boy asked the shooter. Jonny just laughed and went back to work. The boy sighed and went to put his headphone back in.

"Young man, If you think you are listening to music in my lesson, then you have another thing coming!" The boys teacher shouted from the front. The boy sighed and put his headphone back into his ear.

Meanwhile

On the edge of town, a man is fixing up his old 1969 Chevy corvette stingray. It is a recent buy. He brought it to do up for his boy as a second car. At $2500 it was a steal. Granted it needed quite a bit of work. Okay, a lot of work. But he had time before he was able to drive. After working on for most of his spare time, he hoped his son would like the car when it became his on his 16th birthday. The man looks at the clock he keeps next to his work station. 14:35. Sighing, he closed the hood of the car and wiped his hands on his overalls. His son would be leaving school soon and he needed to be home before Jacobi. He had forgotten his keys again. Taking off the overalls to reveal some almost as dirty jeans and tank top, the man loaded the shotgun he had connected to the tripwire just inside the door to the garage. Carefully stepping over said tripwire, he closed the door and secured the garage doors closed. As he did this, he saw a man walking in his direction. The man was not especially large but walked with a purpose. As the second man got close to Jacobi's dad, he started to talk to him.

"Are you Mr. Welby?" The man asked.

"Who's asking?" Mr Welby asked apprehensively. The other man smiled as he blinked. Upon opening his eyes again, Mr. Welby saw that they had turned pure black. Not just the iris, but the whole eye was now a pitch black. Mr. Welby stumbled backwards in shock. After regaining his balance, he charged towards his own car, a sensible family people carrier. Before he could make so much as 2 steps towards his car, He was flung off of his feet and into the garage door. The impact winded the father but for some reason, he couldn't move. Looking up he saw the small man towering over him.
"Oh I am nobody. Just a foot soldier. Not really important at all. But my boss is a very important man. And you owe him something. A very big something mind you. Remember?" The man sneered as he looked the now terrified Mr. Welby. What was this man talking about?
"Come on Mr. Welby. You must remember this. It was to do with your son. Jacobi." Mr. Welbys felt a feeling of dread spread over him.
"No. You cant. He is just a boy. I am all he has left!" Mr. Welby shouted. The other man just laughed.
"I don't care. You made a deal with my boss and I am here to collect. Your soul for his life. Unless you want him to die..?" The other man left the question hanging in the air. Mr. Welby, who had previously been struggling, gave in.
"His mother died last year. You cant. Have some humanity." This only caused the other man to laugh louder.
"Yeah sorry. Lost that centuries ago." And with that, An invisible force pounced on Mr. Welby and tore him apart.

Back with Jacobi.

Finally his day of idiots and classes was over. Packing his workbook and pens into his bag, the 12 year old boy stormed out of the chemistry room. The Russell academy was home to around 3000 pupils from all over Iowa and South Dakota and almost all of them hated Jacobi. Being the son of a court marshalled Sargent was not good in a city full of patriots. And then there was the fact that he was better than all of them. That also put a knot in their underwear.
"Sound of the drums
Beatin' in my heart
The thunder of guns
Tore me apart
You've been – thunderstruck"

Jacobi was walking down the corridor towards the main gate of the school with his music blasting, when who else should he find in his way but Jonny. As Jacobi tried to walk around him, Jonny moved into his path which caused Jacobi to walk into the larger lad. Jonny pushed Jacobi in the chest causing the smaller boy to take a few steps back.

"Where do you think you're going Welby?" The larger boy asked menacingly as a circle formed around the two young boys. Jacobi looked at the bully dead in the eyes with a cold stare.
"Well I was thinking about going to McDonalds to have some lunch. I would see if you wanted to join me, but seems you've had enough already." Jacobi made motions towards Jonny's stomach. Jonny's eyes bulged in their sockets as Jacobi said this. There was a general sound of surprise and humour from the now growing circle.
"You're gonna regret that Welby, Jonny said as he swung at the smaller, and apparently faster, boy.

Jacobi ducked under the wild swing and before anything else could happen, The principle broke up the fight.

"Jacobi. Come into my office for a minute." The princible said.

"But sir, I haven't done anything yet." The now exacperated Jacobi stated.
"Its about your dad."